Active 4 Hint: you can't calculate the speed before you know what the distance and time values are. Note: This is a rough and quick estimate of engine horsepower. If you round that number up, you are spending 37 cents on fuel for every mile your truck travels. Engine Calculator - This form is designed to help you figure out engine specs for all engine types - not just VW. They are engine RPM, prop gear ratio (normally for 1. "Velocity" is the speed that the CNC can travel, in inches per minute. MPG Estimates from Others; MPG estimates from drivers like you! Advanced Cars & Fuels. Please note that in order to enter a fraction coordinate use “/”. ‎Read reviews, compare customer ratings, see screenshots and learn more about Fuel Calculator: MPG Converter. 0 inches) will give you a 0. Your car's gas mileage decreases once it gets past its optimal speed. We compare design, practicality, price, features, engine, transmission, fuel consumption, driving, safety & ownership of both models and give you our expert verdict. View pictures, specs, and pricing & schedule a test drive today. Check out the Jetta today!. Complete systems front and rear, custom axle housings, big brakes and more for your pro-touring Mopar. Calculator for cost per mile or kilometer. 7 gallons-per-hour, and a range of 173 miles on the 70 gallon fuel tank. If you drive an automatic, ease back slightly on the accelerator once the car has gained sufficient speed ; Avoid peak hour and other heavy traffic where possible ; Avoid engine idling for long periods. Speed is normally denoted in miles per hour and is carried to one decimal place -- for example, an average speed of 5. One knot is equal to one nautical mile per hour. Calculation of the g-force at accelerating or braking in a straight line motion. It is quite simple to calculate your vehicle’s average gas mileage using these simple steps. 0-60 mph Calculator for Cars. Tire Height. MOVES is a state-of-the-science emission modeling system that estimates emissions for mobile sources at the national, county, and project level for criteria air pollutants, greenhouse gases, and air toxics. Please note that in order to enter a fraction coordinate use “/”. 6L V6 24V VVT 52,560 mi 6-Speed Automatic FWD billet silver metallic clearcoat black #LW261044B 2C4RDGBG3FR750716 17/25 mpg Charlie Clark Nissan Price: $12,999. to work the equation the other way, to find engine rpm for a given road speed, you want to solve for rpm: rpm = (mph * gear * final * 88) / circumference at 60 mph, for instance, this has our audi revving a calculated 2822 rpm, within a few percent of our road-test computer's 2750 rpm. Calculate miles per US gallon (MPG US), miles per Imperial gallon (MPG Imp), kilometers per liter (km/L) or liters per 100 kilometers (L/100km). RCF is positively related with the rotor radius and the rotation speed of the centrifuge. Use this tool to compare two tire sizes. Stopping distances include the distance travelled while the driver notices a hazard and applies the brakes (thinking distance), and while the vehicle comes to a full stop from its initial speed (braking distance). Daniel - average speed listed for Strava segments is a completely different topic: (There is a quirk where we calculate your average speed using the distance of the Segment / your Segment time, instead of your distance over the segment per the Segment match / your Segment time. Engine RPM Calculation Basics. Online calculator to convert knots to miles per hour (kn to mph) with formulas, examples, and tables. 14 miles per gallon decrease in fuel economy. = 1852 m ** 1 Statute mile = 1760 yards = 5280 feet ** Definition: [n] a unit of length used in navigation; equivalent to the distance spanned by one minute of arc in latitude; 1,852 meters. Use the RPM calculator to determine what RPM your engine will run based on gear ratio, tire diameter, transmission and MPH. My Trip Calculator. To calculate the watt hours (WH) of a battery pack, simply multiply the voltage by the amp hours (Ah) of the pack. Revolutions Per MileRevolutions per mile indicates the number of times a tire revolves while it covers the distance of one mile. How do you convert Liters per Minute Flow? To convert Liters per Minute to other flow measurements, use the equations: Liters Per Second = LPM / 60. Once 1,000 RPM is reached, direct the fluid being pumped into a measuring container for one minute. Volkswagen has designed the 2020 VW Jetta for a tasteful, sporty, and sleek look and feel. Use our petrol vs diesel UK price calculator to check your fuel costs in 2020. Tire diameter, final (differential) gear ratio, and transmission ratio (usually 1. Eg enter 20 if your vehicle gets 20 miles per gallon ; Enter the current fuel costs to in the fuel cost field. It can lower your gas mileage by roughly 15% to 30% at highway speeds and 10% to 40% in stop-and-go traffic. How to Calculate Gas Mileage: Thankfully it's not that hard to figure out, and involves a few simple calculations. Truckers Fuel Cost. 7 equals 36. 42 gearing will produce in excess of 20 mpg at 65 mph because the engine rpm at that speed is right at the engine's torque peak of about 1800 rpm. Change the size of the tire and you change the factor. Online tool for G-Force/RPM centrifuge conversion. Start conversion by selecting unit type. So, for most cars, the "sweet spot" on the speedometer is in the range of 40-60 mph. RCF is positively related with the rotor radius and the rotation speed of the centrifuge. Cars with a higher road load will reach the sweet spot at a lower speed. And don't we all try, slaves to our cyclocomputers? Here is the effect of grade on speed, for the same two positions (hoods and aerobar), at 150 watts:. The centrifugal supercharger contains an impeller which spins at high speed to draw air into a small compressor housing (volute). RCF is positively related with the rotor radius and the rotation speed of the centrifuge. Also, new engines will get lower mileage for the first 10-15K from what I have experianced. Fuel Map or Fuel Table. 6mph) there is a maximum fuel economy of 117mpg (2. 80 for the manual; You know the ring gear and pinion gear ratio. Question 87939: The following function describes the miles per gallon a ford Taurus gets when driven at x mls. This consists of:. Many other converters available for free. Fuel economy calculator. How To Improve Your Gas Mileage. For Sale: 2006 Chevrolet Silverado 1500 Montgomery AL 2976 - Clean CARFAX. ) по городу, на шоссе и в смешанном режиме Fuel economy directory more than 50 000 models in the database. All-New 2019 Ram 1500 5. To calculate the watt hours (WH) of a battery pack, simply multiply the voltage by the amp hours (Ah) of the pack. Welcome to the oldest and most popular bicycle performance prediction calculator on the web - since 1997. Our conversions provide a quick and easy way to convert between Speed or Velocity units. 17405 ft/s². Free shipping US Orders +$99!. Aftermarket performance auto car parts company & vehicle gauge manufacturer. This gas calculator is a handy tool for every driver who, when planning a trip, asks how much gas will I use? We prepared the gas estimator to help you find out how much fuel you will use on a car trip and how much it will cost you. At 65 mph it turned about 2000 rpm and got 15 mpg. Example:10 kpl = 2. This calculator allows you to find a close gear set that will make it all happen. This engine is generally overlooked in selecting a high-performance project. 67 Kilometers per hour (km/h) This calculation will help you calculate your average speed when you have covered a certain distance over a certain time. However, note it varies rather wildly if speed is varying, and it doesn't work when you are stopped at a light. Shipping Calculator. Our gas cost calculator is versatile and offers more then other web-based fuel cost calculators (e. Payment Calculator $196. If a car has less than 6 speeds, only enter numbers for the ratios that apply (i. 55 to one, 3. For an output of 50% of the maximum horsepower of the engine, the most efficient operating point is about 63% of the maximum RPM - at 102% of the minimum fuel consumption. Works with miles, feet, kilometers, meters, etc. 130 Power Specific Fuel Economy 131 Exhaust Back Pressure 132 Mass Air Flow 133 Average Fuel Rate 134 Wheel Speed Sensor Status J1587 Priority In J1587, priority is assigned to individual parameters. The most popular notion about how tire size affects fuel economy is that a tire with a larger diameter will cover more ground per revolution, thus reducing overall gearing and causing the engine to run at lower revolutions per minute (RPM). Speed is the change in distance over time. Our popular MPG Calculator - just enter Mileage and Fuel used since last fill-up: and try the calculator again after using our fuel saving tips (I bet you get another 50 miles out of a tank!). A good figure to use is two thirds for country travel. Free shipping US Orders +$99!. Analyze price, mileage and consumption over drive distance. If you want to convert a rotational speed to a linear speed, such as miles per hour, you need to know the diameter of the circle the object spins around. Rpm, or rotations per minute, measures the rotational speed of an object. 0 inches) will give you a 0. It is the middle of July in Georgia and both you and your tomatoes are wilting in your yard, both looking to the sky and hoping for rain. Up to four calculations are returned depending on your input: Actual Pace: The amount of time it takes you to cover a mile kilometer while running at the speed your treadmill is set at. Scientific Calculator Simple Calculator. Here are a few calculators that may be useful when working with gear ratios, tire sizing, etc. Fuel Consumption - Calculate mpg - Estimate fuel consumption in miles per gallon - mpg - consumption chart and calculator; Fuel Consumption Converter - Convert between fuel consumption units like US MPG, Imperial MPG, litre/nm, litre/100 km and km/litre. Information on fuel economy labeling, history and trends of fuel economy, testing and data, and information on how federal agencies work together on the issue of fuel economy. It is equal to exactly 1. 36 ÷ Seconds Required to Travel 200 Feet If a sprayer travels 1 mph faster or slower than required, it will under or over apply pesticides by 5-8 gallons per acre (based on 20 gallons per acre delivery rate, 3. 2L engine, which has its. With this measure, you can estimate the RPM of the pump if you know the amount of water being pumped every minute, thought it is an. Limit acceleration. Not the best fuel for good mileage. You plug in the make and model of your car, and it tells you how much you would save on gas, how much less gas you would use, and how much less. For example, find out what pace you need to keep to run a 28-minute 5K or a sub-2:00 half marathon. lets say a train weighs 3,000 tons (6,000,000 lbs) that means it took 3,000 gallons of fuel to go 436 miles. Bookmark this page Hit CTRL+D and be sure to share with your friends. Hello, I want to calculate the speed of a moving object as they do in the example above. If you’re unable to find an estimated GPH for your watercraft, you can use the formulas outlined below. Volkswagen Jetta Model Year: 2019 ( turbocharged 1. Payment Calculator $196. We can demonstrate this with the simplified formula: rpm = (mph x final gear ratio x 336*) / tire diameter (*see "Formulas for Success" sidebar). It also allows you to see how much money you would save if you were driving a car that got better gas mileage. US Gallons Per Second =. The final speed is an approximation (within 5 mph), real speed will vary by rear end ratios, heat, traction, shifting, wind direction, etc!. I feel best towing between 62-65, I can get about 14 mpg and this keeps the rpms at 1900. Speed, Distance & Time Calculator. Do larger tires improve gas mileage? The common belief is that a tire with a larger diameter will cover more ground per revolution, thus reducing overall gearing and enabling the engine to run at lower revolutions per minute (RPM). Don't have a JavaScript capable browser? Jump over to the Gear Table. Active 4 Hint: you can't calculate the speed before you know what the distance and time values are. MegaSquirt works on a number of levels to inject the correct amount of fuel into your engine. For example, given 65 mph, a tire diameter of 30. On long road trips, knowing how many miles you are averaging per hour can give you an idea of how long it will take to get to your destination. 5-11 MPG depending wind and how much my foot bounces on the peddle. com and use our exclusive Mustang speedometer gear calculator. By knowing the rate at which a generator or other engine consumes fuel, a very accurate calculation of carbon dioxide (CO2) emissions can be obtained. The surprising fact that makes it work is that it still gets about 10 MPG running down the highway. This free fuel cost calculator estimates the fuel cost of a trip based on fuel efficiency, distance, and gas price using various units of measurement. Since the gear tooth pitch is slightly different than OE, the service life of this gear is limited to less than 25,000 miles. UltraGauge is both an OBDII Scan Tool and an Information center that displays selectable engine gauges, such as RPM, Speed, Coolant Temperature, Boost, Distance, Fuel Pressure, Mass Air Flow, and more. Distance and route computation. 0 Speed Gear; 34x12: 23: 45: 68: 90: 113: 135: 158: 181: 34x12: 34x13: 24: 49: 73: 98: 122: 146: 171: 195: 34x13. The first controlled flight to break the speed of sound — also known as Mach 1 — took place Oct. Run Speed: KM/hr Miles/hr : Training Pace Calculator; Recent race length (you can use a decimal point, e. Department of Energy. If you’re unable to find an estimated GPH for your watercraft, you can use the formulas outlined below. Actual mileage will vary The 2019 EcoSport makes sure that wherever you go, you’ll do it in style. The air on a windy day feels colder than that indicated by a thermometer. Tire diameter, final (differential) gear ratio, and transmission ratio (usually 1. Calculate and track your gas mileage. Save your favorites for the next time you're ready to run. Tire Size Comparison Calculator. Account Inquiries: RPM Mortgage PO Box 70 Walnut Creek, CA 94597. Fuel Economy Calculator is probably the most detailed program for predicting the effects of modifications of fuel efficiency. The fuel economy reported by the fuel economy meter on the Toyota Prius was sometimes off by 14 percent or 6. UltraGauge displays mileage gauges including Instantaneous MPG, Average MPG, gallons per hour, DTE and more. 1/4 Mile MPH Calculator by RPM, Tire Height, Rearend Ratio, Trans Ratio, & Converter Slip. The following equations and calculators will estimate the resultant vehicle speed at a known engine rpm for a manual transmission with up to six forward gears. Listed are the expected RPM's at 60 MPH with a given rear end ratio and tire height. Subtract Mileage A from Mileage B. Use our gear ratio calculator to find the effective gear ratio your vehicle will have with a new tire size. Calculate your car's real world MPG using our True MPG Calculator. 5mph (a normal speed for walking a dog) on a firm, level surface. Browse All Motorcycles. Find out if buying a diesel car will save you money or if petrol is better. 00 every season. Driver feedback devices can help you drive more efficiently. You can enter details for up to 2 cars. Fuel Consumption Conversion Calculator to Convert MPG and Liters per 100KM This calculator was created in response to the following sent to me by a site visitor from Canada: Do you have or could you do a petrol conversion calculator that could tell me what the Miles per Gallon mileage is on new car listings when it only says the Litres per 100. MPG Calculator. A truck with 4. 2 Updated: August 1, 2004. Find the engine specs, MPG, transmission, wheels, weight, performance and more for the 2017 Ram Truck 3500 Crew Cab Laramie 4WD. Take the current per-gallon price of diesel ($2. You know the tire height in inches. However, note it varies rather wildly if speed is varying, and it doesn't work when you are stopped at a light. G force refers to Relative Centrifugal Force (RCF). Yes, pun created. We compare design, practicality, price, features, engine, transmission, fuel consumption, driving, safety & ownership of both models and give you our expert verdict. I’ve seen many threads with posts indicating best fuel efficiency as a percentage of open throttle. That was with twin 375 hp engines. Online calculator to convert miles per hour to kilometers per second (mph to km/s) with formulas, examples, and tables. Pace to Speed Conversion Calculator What is my speed if I'm covering a mile at the given pace? Enter a pace to find the corresponding speed. Default speed Help on: Calculate RPM per gear at 50 Mph or Km/h in 3 setups; Change Speed Help on: Calculate RPM per gear at particular speed in 3 setups; Chain / Belt Geom. For example, let's find the recommended carburetor size for an engine with a displacement of 302 cubic inches, a max speed of 7,500 RPM, and 80% volumetric efficiency. When I picked up the pace to 75-80 mph it was turning 2500-2600 rpm and got 17 mpg. 12 by your Jeeps tire diameter (Example:. This calculator is for entertainment value only. Limit acceleration. 3 L/100 km). To get correct gearing for your top speed runs use our Gearspeed Calculator. 4-liter engine and continuously variable transmission. The main focus of this article will be on a conventional OHV (overhead valve), cam-in-block engine configuration using two valves per cylinder, as shown above. And that has much to do with the design or the prop and rpms. Auto* AOD* Manual* 5 Speed* RANDYS Worldwide makes no guarantee to the accuracy of calculations. Calculator This calculator, calculates the fuel cost for a haul, and cost per mile. One important factor for me when I am looking for a new boat is the fuel economy. Since the gear tooth pitch is slightly different than OE, the service life of this gear is limited to less than 25,000 miles. is a reasonable tow speed (in CA its the posted limit for ALL trailers, and CHP will get you - in OR trucks 55 (62) & trailers are 65 (70)). Also calculated is the new gearing you would need in order to return back to your original gear ratio when going to a bigger or smaller tire. When air leaves the impeller, it is traveling at high speed while having a low pressure. The defaults show suggested values. Contrast these carbureted engines getting 27 to 32 miles per gallon with a RSR Closed Loop efi system that will get 40 mpg in town and 50mpg on the highway. CFM Airflow for a Leaf Blower, Meaning and Calculator When looking around for the perfect leaf blower, you might have come across a few units of measurements in leaf blower product descriptions; MPH, CC, dB and CFM. You can enter tire size by the standard profile numbers or by the tire diameter. Enter Shift at RPM, select gear to shift to and hit Shift and Trace to run up through the gears recording shift point RPM and km/h. 10 gearing is running at about 2250 rpm at the same speed, which typically produces about 15 mpg. Mileage: * * Choose vehicle:. 0 centistokes. 0 Speed Gear; 34x12: 23: 45: 68: 90: 113: 135: 158: 181: 34x12: 34x13: 24: 49: 73: 98: 122: 146: 171: 195: 34x13. Payment Calculator $196. G force refers to Relative Centrifugal Force (RCF). If I call m the gas mileage for a certain speed then: Where the constant K contains both unit conversions and an efficiency of the engine. Speed, Distance & Time Calculator. TrustConverter is online conversion of length, weight, area, energy, force, mass, power, pressure, speed, temperature, volume, base number and more. 23 1400-5000 8 to 9. From the graph we see that the gas mileage for the compact car is 45 miles per gallwon if the car is driven at a speed of 40 mph and the gas mileage for the compact car is 20 miles per gallon if the car is friven at a speed of 90 mph. The knot is a non-SI unit of speed. Tire Size Comparison Calculator. 183 HP, 2 carbs, 2680cc. To use the Optimal Axle ratio calculator, enter the tire size you are running, and your Estimated/Desired RPM through the trap in the Redline (RPM) field, then press Calculate, there will then be a pop-up requesting your Estimated 1/4 mile MPH, enter that and your Optimal Axle Ratio will display in the Axle Ratio field. The short stroke allows high RPM without destructive piston speed (7100 RPM = 4000 ft. This chart applies to all Ford non-overdirve transmissions, manual and automatic. WIND CHILL Wind increases the rate at which a body loses heat. Fill up your car with fuel all the way. Compare MSRP, invoice prices, crash test results, mileage and available transmissions side-by-side for up to 4 cars, trucks, minivans, vans or SUVs. If I keep it at 100kph (62), which for Oregon & Calif. Whether you are test driving your brand new car, or just going for a quick jog or cycle, if you want to know how to find average speed, this calculator will come in handy. Gear Ratio and Tire Size Calculator - 4x4 and Jeep Ring & Pinion When you change your tire size you need to make sure you have the right gearing to get optimal fuel economy and power. Not just the impact on your pocketbook—which is important—but annual gas. Are you looking to buy a car but can't decide between a BMW Z4 or Mercedes-Benz V 250? Use our side by side comparison to help you make a decision. It's real distance and doesn't take into account incline or wind resistance. 3 L/100 km). 00 every season. Result is gallons per hour. BMI Calculator » Triangle Calculators » Length and Distance Conversions » SD SE Mean Median Variance » Blood Type Child Parental Calculator » Unicode, UTF8, Hexidecimal » RGB, Hex, HTML Color Conversion » G-Force RPM Calculator » Chemical Molecular Weight Calculator » Mole, Moles to Grams Calculator » R Plot PCH Symbols » Dilution. 3l/100) averaged of 1345 records. Now, 65-75mph on most cars is above optimal MPG speed. For our machines 20 IPM is a good base to test movement, with higher speeds being capable through Stepper Motor Tuning. If not, record the current mileage. It's pretty clear -- when you look at Robot 2 -- that even with an extremely efficient strike (hard for a human player to get such a positive angle of attack), anything close to 220 yards of carry is a very good shot with a 95 mph swing speed. If you round that number up, you are spending 37 cents on fuel for every mile your truck travels. For the speed, you need to enter its value and select speed unit by using the scroll down menu in the calculator. Enter Shift at RPM, select gear to shift to and hit Shift and Trace to run up through the gears recording shift point RPM and km/h. When your towing a "heavy" load (4000-6500lbs) what is your target rpm for optimal gas mileage? I recently towed a 1964 studebaker on a uhual flat bed (around 5500lbs) and i was tryin gto keep it right above 2500rpms to keep the speed between 75-80mpg. 1/4 Mile MPH Calculator by RPM, Tire Height, Rearend Ratio, Trans Ratio, & Converter Slip. Travelmath provides driving information to help you plan a road trip. A recent study suggests that they can help the average driver improve fuel economy by about 3% and that those using them to save fuel can improve gas mileage by about 10%. FPM to CFM Calculator: Usually, volume flow is measured in Cubic Feet per Minute, but at times we require to convert ft3/min to ft/min. The Ford six-speed uses fluid with a viscosity of 6. splitting the gas cost). 2 Pseudocode First we will look at outlining a program using pseudocode. Speed is the distance traveled per unit of time. Use our gear ratio calculator to find the effective gear ratio your vehicle will have with a new tire size. Generic browser based speed, distance and time calculators written in javascript by Nigel Jones for performance oriented cyclists and other racers. The best way to achieve optimal gas mileage is to remain at a constant speed. Accelerating uses up more energy and gas. 1 MiB = mebibyte = 2 20 = 1 048 576 bytes. Gallons Per Hour Consumption Calculation Fuel usage in automobiles refers to the fuel efficiency relationship between distance traveled by an automobile and the amount of fuel consumed. She weighed 19, 500 lbs and had a top speed of 30 mph at 5000 rpm and she would burn 50 gallons of fuel per hour. Whether you're looking for new rear gears that will provide better gas mileage or quicker acceleration, this Engine RPM Calculator will help you maximize efficiency and acceleration to make. higher speeds) and combined (a mixture of the two). The only thing you need is a statement to show where you are starting and where you are ending a program. The most recent study indicates greater fuel efficiency at higher speeds than earlier studies; for example, some vehicles achieve better fuel economy at 100 km/h (62 mph) rather than at 70 km/h (43 mph), although not their best economy, such as the 1994 Oldsmobile Cutlass Ciera with the LN2 2. For the best accuracy measure the flow 3 or 4 times and average the times together. Enter the wind speed and select the unit of measurement from the drop-down list; Click the "Convert" button to see the results. LendUS® was created as a collaboration of two well-established, like-minded companies. Convert the funky P-Metric Tire # (Example: 195/75R15) on the side of your tires to Inches, so you can use more of these rearend calculators! Speedometer Converter When you buy bigger or smaller tires, your speed will change. The knot is a non-SI unit of speed. The wind chill calculator only works for temperatures at or below 50 ° F and wind speeds above 3 mph. For Sale: 2014 Toyota Camry Montgomery AL 2974 - Recent Arrival! Clean CARFAX. 3l/100) averaged of 1345 records. 93685129 Then multiply the amount of G-unit (G) you want to convert to Mile/hour Second, use the chart below to guide you. so the info will only. Calculate your average speed A moment ago: Someone calculated his or her average speed to 26. Spirit of Australia, a hydroplane boat, made speed records by traveling 239 miles in 0. RPM/MPH From Gear Ratio Calculator - by Wallace Racing Home of Pontiac Powered Firebirds,Trans Ams,Pontiac Powered Dragsters,Pontiac Power Rules!. Selecting the 3. On average, every 1 mph increase in speed results in a 0. Discuss this tool in the forum: Online tool: aerodynamic & rolling resistance - power required & estimated MPG. The Fuel Consumption Calculator above approximates the fuel consumption of a diesel generator based on its size and operating load. The new 10-speed drops that to about 4. In the Edmunds test, the fuel economy meter was compared to the actual gas. Calculation of the g-force at accelerating or braking in a straight line motion. Calculate miles per gallon over several tanks of gas to get a good average for your car. The league average is 15. Mass is kg --- METRIC --- ng µg mg grams tonnes M tonnes -- IMPERIAL -- grains ounces pounds stones cwt tons --- OTHER --- u (Da) Troy ounces carats pennyweight Moons Earths Suns. Because boats tend to be operated over a wide range of speeds, their overall or average fuel economy will be a blend of many different rates of fuel consumption at different speeds. Fuel Consumption Rate Calculation. Fuel Conservation Strategies: cost index explained by Bill Roberson, Senior Safety Pilot, flight Operations This article is the first in a series exploring fuel conservation strategies. My last twin engine had a 300 gallon fuel tank. Switching to bigger tires has the same effect as putting in shorter gears. Now, 65-75mph on most cars is above optimal MPG speed. And the sporty 2010 four-door 2-L Mazda3 gets 33 miles per gallon on the highway, manual or automatic. the value. 70 for the automatic and 0. 3l/100) averaged of 1345 records. The fuel economy of boats varies greatly with boat speed, and the ratio between fuel economy numbers at various boat speeds can be 4:1 or higher. Gas Mileage Calculator. CFM Airflow for a Leaf Blower, Meaning and Calculator When looking around for the perfect leaf blower, you might have come across a few units of measurements in leaf blower product descriptions; MPH, CC, dB and CFM. RPM Mortgage is a proud member of LendUS®, one of the largest independently owned and operated mortgage lenders in America. In brief: • Speed is the rate at which an object is moving while velocity also takes into consideration the direction of the moving object. Turns out there's a fair bit to like about the Chinese-made. For instance, you may have weighed your motor home with only 10 gallons of diesel fuel, but it holds a total of 60 gallons. You can use the data to figure out how fast you walk overall. A train gets 1 ton 436 miles per gallon of fuel. You can enter tire size by the standard profile numbers or by the tire diameter. See how fuel savings add up between two cars using the inputs below. Engine efficiency of thermal engines is the relationship between the total energy contained in the fuel, and the amount of energy used to perform useful work. Quickly and easily calculate the price of your journey using our petrol cost calculator. Automobile Performance Math Calculator designed for the road racer, drag racer or car enthusiast. What Can You Calculate with a Pace Calculator? Determine how fast your pace should be if you have a certain finish time for a desired distance or race. How do you convert Liters per Minute Flow? To convert Liters per Minute to other flow measurements, use the equations: Liters Per Second = LPM / 60. CFM Airflow for a Leaf Blower, Meaning and Calculator When looking around for the perfect leaf blower, you might have come across a few units of measurements in leaf blower product descriptions; MPH, CC, dB and CFM. Yes, pun created. VA: Value Added - the estimated number of points a player adds to a team’s season total above what a 'replacement player' (for instance, the 12th man on the. Toyota says the HiAce carries the best resale value in the LCV segment. is a premium marine dealership located in Hayden, ID. : this calculator allows you to enter 3 of four variables and it will compute the other based on your input. All you need is to enter the driving distance and the average fuel economy of your car - then, all the math is done automatically! In fact, your biggest concern will be how much gas costs at your nearest gas station. Welcome to the oldest and most popular bicycle performance prediction calculator on the web - since 1997. In this article, we will learn how to calculate average speed in Microsoft Excel. The biggest trade-off is the maximum speed will be limited, depending on the modified nature of the motor and how "steep" of a rear gear you go to. This means that every time you go over this speed, you're essentially wasting gas and money - and creating unnecessary greenhouse gases. It is commonly abbreviated in everyday use in the United States, the United Kingdom, and elsewhere to mph or MPH, although mi/h is sometimes used in technical publications. Selecting the 3. It can be calculated though. 3-speed manual transmission in 3rd gear; 5-speed (or higher) manual transmission in the last gear; The ratios used for the transmissions are 0. Gear Ratio Speed Calculator By David Nguyen Calculate theoretical speed for a car in each of its gear ratios. 26-1 (similar to 327” SBC, better than 340). All about new cars in India under one roof. This calculation is used to match oversize tires with new ring and pinion gears to obtain the desired engine RPM at highway speed. This calculator computes the estimated engine or motor horsepower from trap speed. To calculate your actual miles per gallon, reset your trip meter when you have a full tank. Weight conversion calculator for metric and imperial units including Kilograms, ounces and Pounds. Car Emissions Car Emissions & Car Fuel Consumption Figures. Fuel efficiency can also mean the output one gets for a unit amount of fuel input such as "miles per gallon" or "liters per 100 kilometers" for an automobile (sometimes called fuel economy). Therefore your actual speed is higher than your speedometer reads. Enter the wind speed and select the unit of measurement from the drop-down list; Click the "Convert" button to see the results. Don’t worry, the math is easier than you might think. RPM/MPH From Gear Ratio Calculator - by Wallace Racing Home of Pontiac Powered Firebirds,Trans Ams,Pontiac Powered Dragsters,Pontiac Power Rules!. Our conversions provide a quick and easy way to convert between Speed or Velocity units. Axle Ratio/Tire Size Calculator - Version 1. The lower the better butfor optimal efficiency it is the correlation between torque requirenment to maintain a steady speed and load on the engine. 5mph (a normal speed for walking a dog) on a firm, level surface. Enter the maximum potential safe engine RPM. When your towing a "heavy" load (4000-6500lbs) what is your target rpm for optimal gas mileage? I recently towed a 1964 studebaker on a uhual flat bed (around 5500lbs) and i was tryin gto keep it right above 2500rpms to keep the speed between 75-80mpg. I think part of the problem with the lower mileage was fuel related. 73 to one, 3. Fuel economy at steady speeds with selected vehicles was studied in 2010. SAJD81FV8LCK63165. Default speed Help on: Calculate RPM per gear at 50 Mph or Km/h in 3 setups; Change Speed Help on: Calculate RPM per gear at particular speed in 3 setups; Chain / Belt Geom. Code Review Stack Exchange is a question and answer site for peer programmer code reviews. How to calculate braking distances The braking distance, also called the stopping distance, is the distance a vehicle covers from the time of the full application of its brakes until it has stopped moving. A MPH Calculator from RPM and Gearing. Volumetric efficiency, gear ratio, compression ratio, valve size and lift, weight of car, convertor stall and other factors may vary the carburetor sizing so before you make your selection always contact us for and speak to a reliable carburetor professional who is familiar with Quick Fuel air flows and the various types and series of. In addition, explore hundreds of calculators including a gas mileage calculator, horsepower calculator, and many others addressing topics such as math, finance, fitness, health, and more. Listed are the expected RPM's at 60 MPH with a given rear end ratio and tire height. Boat performance is equal parts power and propeller. A truck with 4. Our conversions provide a quick and easy way to convert between Speed or Velocity units. 8503 ft/min. Save your favorites for the next time you're ready to run. It's pretty clear -- when you look at Robot 2 -- that even with an extremely efficient strike (hard for a human player to get such a positive angle of attack), anything close to 220 yards of carry is a very good shot with a 95 mph swing speed. The defaults show suggested values. The 2010 Chevrolet Aveo, for instance, gets an EPA-estimated 35 miles per gallon highway. Cars with a higher road load will reach the sweet spot at a lower speed. Tips for Getting the Best Hybrid MPG. With the cost of gasoline fluctuating between expensive and astronomical, many drivers are very concerned about the gas mileage their car is getting. 2017 Honda ATV Horsepower / Torque / MPG Comparison Review | Power-to-Weight Ratio Performance Numbers. 3L V8 SFI 4-Speed Automa. Run Speed: KM/hr Miles/hr : Training Pace Calculator; Recent race length (you can use a decimal point, e. With these tires, @ 2,000 rmp's = 70 mph (hwy relatively flat grade) = 20 - 18 +/-Take into account the 6 speed tranny, AFE Cold Air Stage II, and edge comp. Miles per gallon vary based on the miles per hour driven (which is why cars list highway and city mileage on the price sticker). So to calculate the miles driven you take the miles at the end of the tank and subtract the Miles at the start of the tank, and then you divide that by the total gallons of gas used. Let's say the engine is running at 5,000 rpm. Complete systems front and rear, custom axle housings, big brakes and more for your pro-touring Mopar. The engine's rpm and fuel consumption are generally lower in higher gears. 1% larger circumference wheel & tire would reduce RPM by the same percentage (3. Annual Miles - Enter the average number of miles you drive each year. MPG Calculator - from Miles & Litres (or your last fill up cost. H, m/hr and mi/hr. A good way to calculate this is to multiply. (plus I got home quicker!) One way to figure out what rpm your engine pulls best if you have a manual trans, use 2nd gear at about 1500 rpm push down on the throttle and watch the tach. The fastest train on Earth, the the United States. Speed is the rate of change of motion, i. Natural gas is measured in therms or BTUs. 514444444 meters per second (m/s). Gearing Up For Fuel Economy. Enter your original tire size, your new tire size, and then play with the miles per hour to see how much faster you are going at. We are doing some work on the site and will be back shortly. RPM: revolutions per minute, used for engine speed TDC : top dead center, or the highest point the piston reaches inside its cylinder in the engine Timing : used for the timing of the firing of the spark plugs from the coil; can be advanced (fired further before the piston reaches TDC) or retarded (fired closer to or after the piston reaches TDC). Bootstrap Hypothesis Test In 1882 Simon Newcomb performed an experiment to measure the speed of light. But since looks aren’t everything, EcoSport offers an array of interior amenities that m. Calculate the linear velocity of the air through the running fan. A study on driving speed (miles per hour) and fuel efficiency (miles per gallon) resulted in the following sample data for midsize sedans Driving Speed 32 5 2 38 53 34 21 60 22 52 57 Fuel Efficiency 29 2 6 27 25 32 35 12 40 28 25 a. We used PTO horsepower (at rated engine speed) to determine if the tractor belonged to the category of row crop (150 to 200 hp) or high-horsepower 4-wd/track (300+ hp). Monthly Payment Calculator. One knot is equal to one nautical mile per hour. In practical use, there is a simple approach to solve a problem like determine my speed when driving while my speedo meter is busted and only rpm meter is working, so how i how fast am i going?. Estimate Top Speed Engine Displacement Exhaust Length Gear Ratios MPH at RPM Air Density: The Nightrider Diaries The ramblings of a genius a, a madman and something in between. 195 @ 4600 RPM Torque. The miles per gallon gasoline equivalent is based on the energy content of gasoline. Use this speed calculator to easily calculate the average speed, distance travelled and the trip duration of a vehicle: car, bus, train, bike, motorcycle, plane etc. The motor has an excellent bore to stroke ratio: 1. For the best efficiency, it’s best swerving the all-wheel-drive version, as it knocks the CO2 emissions from 133g/km up to 146g/km and reduces the fuel economy from 47. Information on fuel economy labeling, history and trends of fuel economy, testing and data, and information on how federal agencies work together on the issue of fuel economy. com and use our exclusive Mustang speedometer gear calculator. You know the tire height in inches. EASY TO USE - Tap the name of the measurement you want to calculate (Speed, Distance or Time), then enter your values by tapping the empty fields. The Fuel Consumption Calculator above approximates the fuel consumption of a diesel generator based on its size and operating load. RPM/MPH From Gear Ratio Calculator - by Wallace Racing Home of Pontiac Powered Firebirds,Trans Ams,Pontiac Powered Dragsters,Pontiac Power Rules!. Given a few bits of information on your drivetrain and tires it will computer shift points, max RPM. The unreduced formula for finding vehicle mph involves multiplying engine rpm by the number of minutes in an hour (60) and multiplying the tire diameter by pi to find the circumference of the tire. Calculate miles per gallon over several tanks of gas to get a good average for your car. At 665 Miles per Hour I am surprised you get even. Now, 65-75mph on most cars is above optimal MPG speed. Used Cars Montgomery AL,Used BHPH Trucks Troy AL,Pre-Owned Autos Montgomery AL,Previously Owned Vehicles Troy AL,Used BHPH Car Dealership AL,Used 4x4 Diesel Truck Dealer AL,Used Pickups AL. This question comes up. Hoping to save some gas money on a road trip, Science Update Producer-on-leave Corinna Wu, called to ask if there was an ideal speed for gas mileage. cost inDex DefineD the ci is the ratio of the time-related cost of an airplane operation and the cost of fuel. 0 centistokes. com and use our exclusive Mustang speedometer gear calculator. a tonne of freight traveling 1 mile, or a half tonne of freight traveling two miles, or 1/1000th of a tonne traveling 1,000 miles… you get the point): Total number of shipments. Anything faster than 10 Mbps is a good enough internet speed for Wi-Fi, but you can have Wi-Fi with pretty much any internet speed. Discuss this tool in the forum: Online tool: aerodynamic & rolling resistance - power required & estimated MPG. Fuel / gas efficiency can mean the output one gets for a unit amount of gas input such as "miles per gallon" or "liters per 100 kilometers" for an car / SUV (sometimes called fuel economy). When I picked up the pace to 75-80 mph it was turning 2500-2600 rpm and got 17 mpg. The Shelby GT350 features TREMEC® 6-speed manual transmission, RECARO® cloth/Miko® suede Sport Seats, Launch control and more. Average speed is typically available in real time and as a final summary of your elliptical training session. The short stroke allows high RPM without destructive piston speed (7100 RPM = 4000 ft. 1415927 * Some formulas contain notation such as ^2 which means "squared" or ^3 which means "cubed" Formulas for Calculating Carburetors CFM Engine size (cid) x maximum RPM / 3456 = CMF. How to use the Trip Calculator. But since looks aren’t everything, EcoSport offers an array of interior amenities that m. The Speed Distance Time Calculator can solve for the unknown sdt value given two known values. 03532 x LPM. Members can filter real-world gas mileage results by the most important factors. 15077945 miles per hour (mph) = 1. Low Emission Zones. speed is given in Mike Sherman's gear calculator. By using known values for the weight, power and speed you can come up with a more accurate constant for your boat. Highest was 10. Not to be used in place of real testing. The EPA's new fuel economy label uses a scale ranked from 1-10 (10 being best) on the way a vehicle model compares to all others in terms of fuel economy and air emissions. : this calculator allows you to enter 3 of four variables and it will compute the other based on your input. This is the default value used in the calculator. 3-speed manual transmission in 3rd gear; 5-speed (or higher) manual transmission in the last gear; The ratios used for the transmissions are 0. 5mph (a normal speed for walking a dog) on a firm, level surface. 5 inches will substantially drop the fuel economy by about 10% to 21. This free online Driving Times Calculator will calculate the number of hours and minutes it will take you to arrive at your destination based on the number of miles or kilometers you plan to drive, combined with the average speed (MPH or KMH) you expect to drive and the number and lengths of stops you expect to make. If you want to convert a rotational speed to a linear speed, such as miles per hour, you need to know the diameter of the circle the object spins around. You can avoid traffic congestion in a few different ways. Your car's gas mileage decreases once it gets past its optimal speed. Get a one gallon container, and time how long it takes to fill it with water. Shipping Calculator. Formula : circumference = 2 * radius * pi or circumference = diameter * pi. So there is no difinitive normal speed for people in general. Supports miles per hour (mph), kilometers per hour (km/h), yards per hour (yd/h), feet per second (ft/s), meters per second (m/s), and others. Our gas cost calculator is versatile and offers more then other web-based fuel cost calculators (e. 12 by your Jeeps tire diameter (Example:. At less than 60 miles per hour, fuel economy is primarily dependent on driver habits, rather than gear ratio. The value will be returned in estimated differential gear ratio, based on the entered values. Average speed is typically available in real time and as a final summary of your elliptical training session. I will just change my travel tactics to adjust to the expense. The first controlled flight to break the speed of sound — also known as Mach 1 — took place Oct. To be able to calculate the speed in miles per hour in addition to the RPM's, you need to know the diameter of the saw blade and convert this to its circumference. To use the calculator, simply enter the distance you traveled and the amount of fuel you used to get from your origin to your destination and click. The wind chill calculator only works for temperatures at or below 50 ° F and wind speeds above 3 mph. Simply choose your car, driving style and daily commute to get precise fuel economy data. 6L Pentastar ® V6 engine with eTorque and TorqueFlite ® eight-speed automatic transmission, 4x4. Python Program to Make a Simple Calculator In this example you will learn to create a simple calculator that can add, subtract, multiply or divide depending upon the input from the user. Enter the maximum potential safe engine RPM. An important process that determines the performance of the engine is the fuel injection process. Therefore your actual speed is higher than your speedometer reads. 2): My time (hours:minutes:seconds):. 1% larger circumference wheel & tire would reduce RPM by the same percentage (3. 1 knot = 1 nautical mile per hour = 6076 feet per hour 1 mph =1 mile per hour = 5280 feet per hour. 55's, so I have found if I keep the rpm's 1,800 - 2,000 is the best on hwy. Information on fuel economy labeling, history and trends of fuel economy, testing and data, and information on how federal agencies work together on the issue of fuel economy. In the article below, you can find a lot of valuable information. When building a structure it is important to calculate wind load to ensure that the structure can withstand high winds, especially if the building is located in an area known for inclement weather. A MPH Calculator from RPM and Gearing. Don't let the economy and rising oil prices stop you from taking your next trip. The miles per gallon gasoline equivalent is based on the energy content of gasoline. to work the equation the other way, to find engine rpm for a given road speed, you want to solve for rpm: rpm = (mph * gear * final * 88) / circumference at 60 mph, for instance, this has our audi revving a calculated 2822 rpm, within a few percent of our road-test computer's 2750 rpm. Fortunately, conversion of mph to rpm can be accomplished by using a few simple mathematical calculations. Find the engine specs, MPG, transmission, wheels, weight, performance and more for the 2017 Ram Truck 3500 Crew Cab Laramie 4WD. (I had to double it because we have twin engines. At 665 Miles per Hour I am surprised you get even. Up to 78 gauges, such as RPM, Engine Temperature, Intake Air temperature, Fuel Pressure, Distance, Intake Pressure, Mass Air Flow, Boost, and many more. AUDI Q5 TFSI e 55 TFSI e quattro S Line 367PS S Tronic - Info on this New Plug-in Petrol Hybrid SUV model with (134. Enter the rotor speed in rpm (RPM) and calculate RCF or Enter the G-Force in g (RCF) and calculate RPM. But since looks aren’t everything, EcoSport offers an array of interior amenities that m. Engine RPM Calculation Basics. Engine RPM, or the speed at which the engine turns, can be calculated at any speed given the vehicle's tire size, axle ratio, and final transmission gear ratio. Online tool for G-Force/RPM centrifuge conversion. 75 ho urs (45 minutes). (rounded to the nearest 10,000th) $100 Promotion. How do you convert Liters per Minute Flow? To convert Liters per Minute to other flow measurements, use the equations: Liters Per Second = LPM / 60. Compare the adjusted GVW with the vehicle's GVWR. 195 @ 4600 RPM Torque. Try not to accelerate and break all the time (even though it's fun), driving at even speed can increase gas mileage with as much as 30%. Try out this calculator get a rough estimate of horsepower. Some assume lower RPM equates with less fuel used to travel the same distance. To convert mpg to kpl multiply your miles per gallon(mpg) with 0. Convert miles per gallon to liters per 100 kilometer (and vice versa) Recently: A couple realized not only that they fit together to 14 % but also what date they will break up, and why. Revolutions Per MileRevolutions per mile indicates the number of times a tire revolves while it covers the distance of one mile. See how fuel savings add up between two cars using the inputs below. The total mass of air which flows through the engine (as measured by the MAF sensor or calculated using MAP, RPM and IAT) is divided by the A/F ratio (e. Ford E-350 Super Duty MPG 313 Ford E-350 Super Du1ies have provided 4. Example:10 kpl = 2. Driver feedback devices can help you drive more efficiently. The moment delivered by the motor in the car above with the engine running at speed 1500 rpm can be calculated as. Gear Ratio Calculator. Speed Distance Time Calculators. An s-curve approximates the angle of the start of compres-sion as a function of. US Gallons Per Second =. Speed Gear 5. Calculates your MPG (Miles per UK Gallon) figure from the distance covered and the ammount of petrol or diesel purchased, the price per gallon is also shown. 0 Speed Gear; 34x12: 23: 45: 68: 90: 113: 135: 158: 181: 34x12: 34x13: 24: 49: 73: 98: 122: 146: 171: 195: 34x13. And that has much to do with the design or the prop and rpms. How MegaSquirt ® EFI Controllers Work. When I picked up the pace to 75-80 mph it was turning 2500-2600 rpm and got 17 mpg. The calculator below uses the above formula. Calculator This calculator, calculates the fuel cost for a haul, and cost per mile. All new whiteware appliances, televisions, computer monitors and heat pumps available for sale in New Zealand display t he Energy Rating Label. CHOOSING GEAR RATIOS For Best Performance - CF-301. How to calculate your tractor's fuel efficiency. A slower turning engine equates to better fuel economy. Drag Max RPM slider to adjust the range of the RPM and km/h Gauges. No need to remember how many litres it was !. I have attached a spreadsheet where I used the information displayed on the card Robertson created (and photographed for inclusion in his article) to calculate fuel economy (i. Understanding how MegaSquirt controls the fuel injectors will help you to assemble, test, and tune your MegaSquirt for best performance. 5 MPG) CO2 emissions (54g/km) and overall NGC Rating 36. Simple MPG calculator in Python. Here is the formula for calculating Miles per Gallon (MPG):. If you do not know this ratio, you can simply put in 1. So I have decided to create a user-submitted database of boats and their fuel economy. The motor has an excellent bore to stroke ratio: 1. Default speed Help on: Calculate RPM per gear at 50 Mph or Km/h in 3 setups; Change Speed Help on: Calculate RPM per gear at particular speed in 3 setups; Chain / Belt Geom. Findnchoose MPG Calculator This online calculator gives you a direct answer to your fuel economy. See the source code for this document for more details on how the calculator works. Pace to Speed Conversion Calculator What is my speed if I'm covering a mile at the given pace? Enter a pace to find the corresponding speed. Enter the maximum potential safe engine RPM. With these tires, @ 2,000 rmp's = 70 mph (hwy relatively flat grade) = 20 - 18 +/-Take into account the 6 speed tranny, AFE Cold Air Stage II, and edge comp. ) So we are getting 2. You can try various combinations to come up with an appropriate combination of ring and pinion gear ratio and tire diameter for your vehicle. Your car's gas mileage decreases once it gets past its optimal speed. Performance Trends Inc Producing Quality Computer Tools for Racers and Engine Builders since 1986. Thre's a pretty large variation there on "average" speed because you have kids and the elderly. It can be calculated though. Then divide the mileage figure by the amount of gas filled the second time to obtain the gas mileage. displacement comparison Power catamarans, like monohulled vessels, can be divided into two basic types:- planing craft and displacement craft. The following conversion tables offer a quick lookup to convert kilometres per hour to miles per hour for commonly sought values. Use the Petrol Cost Calculator to determine the cost of petrol for travelling a given distance using your Litres per 100 kilometres value. When building a structure it is important to calculate wind load to ensure that the structure can withstand high winds, especially if the building is located in an area known for inclement weather. To be able to calculate the speed in miles per hour in addition to the RPM's, you need to know the diameter of the saw blade and convert this to its circumference. You can try various combinations to come up with an appropriate combination of ring and pinion gear ratio and tire diameter for your vehicle. It's pretty clear -- when you look at Robot 2 -- that even with an extremely efficient strike (hard for a human player to get such a positive angle of attack), anything close to 220 yards of carry is a very good shot with a 95 mph swing speed. To use the Optimal Axle ratio calculator, enter the tire size you are running, and your Estimated/Desired RPM through the trap in the Redline (RPM) field, then press Calculate, there will then be a pop-up requesting your Estimated 1/4 mile MPH, enter that and your Optimal Axle Ratio will display in the Axle Ratio field. At 3200rpm those engines should be happy. 9481: 3 Standard Gravity to Miles Per Hour Per Second = 65. x and MSIE 3. We compare design, practicality, price, features, engine, transmission, fuel consumption, driving, safety & ownership of both models and give you our expert verdict. Use the RPM calculator to determine what RPM your engine will run based on gear ratio, tire diameter, transmission and MPH. 0-60 mph Calculator for Cars. Supports miles per hour (mph), kilometers per hour (km/h), yards per hour (yd/h), feet per second (ft/s), meters per second (m/s), and others. With this measure, you can estimate the RPM of the pump if you know the amount of water being pumped every minute, thought it is an. This question comes up. Find and interpret M(60). How does. No more 22 mpg. 1% larger circumference wheel & tire would reduce RPM by the same percentage (3. 8% per 10 kPa back pressure increase when back pressure exceeded the back pressure limit for this engine [224]. When your towing a "heavy" load (4000-6500lbs) what is your target rpm for optimal gas mileage? I recently towed a 1964 studebaker on a uhual flat bed (around 5500lbs) and i was tryin gto keep it right above 2500rpms to keep the speed between 75-80mpg. Our gas cost calculator is versatile and offers more then other web-based fuel cost calculators (e. The Ford six-speed uses fluid with a viscosity of 6. Insurance Rate Calculator Find an Autopac Agent Find a Towing or Storage Service Find a Participating Auto Glass Repair Shop Find a Driving School Driving Licence Rate Calculator Driving Safety Rating Calculator Sanction Listings Driver Education Course Finder Publications/Forms Online Credit Card Payment. It's like having an online rolling road. Most tangible is the hardware. 80 for the manual; You know the ring gear and pinion gear ratio. It can lower your gas mileage by roughly 15% to 30% at highway speeds and 10% to 40% in stop-and-go traffic. 0-60 mph Calculator for Cars. Now if the car goes 2 mph, again it uses only a tiny bit more fuel, but goes twice as far. The ultimate top speed may be limted by the power, drag and aerodynamics of each individual car. See the source code for this document for more details on how the calculator works. Fortunately, conversion of mph to rpm can be accomplished by using a few simple mathematical calculations. With gas prices soaring, a listener called to ask about the best speed for fuel efficiency.