Calculator Gear Ratio Rpm

Measure your engine s rpm based on the ring gear and pinion gear ratio speed and tyre height. Enter any 3 known values to calculate the 4th. Rpm through lights finish line tire diameter hght in inches.

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This calculator assumes you know the vehicle s transmission ratio.

Calculator gear ratio rpm. In order to calculate the engine rpm based on ring gear and pinion gear ratio speed and tire height this calculator makes the following assumptions. Use this calculator to determine your gear ratio and vehicle s speed in any gear and any engine rpm for best performance. Scroll through the list of popular transmissions to find yours. Not to be used in place of real testing.

This calculator is for entertainment value only. Or change input variables engine rpm axle gear ratio and tire height to determine vehicle speed in each forward gear. Ideal 1 4 mile gear ratio. Calculate gear rpm mph tire diameter.

Enter diff gear ratios and tire diameter then drag rpm slider to calculate speed from rpm. Vehicle weight in pounds vehicle horsepower. This calculator will provide the speed of the vehicle based on the transmission gear ratio the engine rpm the tire height and the ring gear and pinion gear ratio in the rear end axle differential housing. Rpm mph from gear ratio calculator by wallace racing home of pontiac powered firebirds trans ams pontiac powered dragsters pontiac power rules.

Engine rpm calculation basics. You can try various combinations to come up with an appropriate combination of ring and pinion gear ratio and tire diameter for your vehicle. Literature where to buy share. 1 4 mile top end speed.

If you know any 3 values pulley sizes or rpm and need to calculate the 4th enter the 3 known values and hit calculate to find the missing value. This calculation is used to match oversize tires with new ring and pinion gears to obtain the desired engine rpm at highway speed. 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. 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.

Use the rpm calculator to determine what rpm your engine will run based on gear ratio tire diameter transmission and mph. Drag max rpm slider to adjust the range of the rpm and km h gauges. Visually calculate pulley size rpm belt length and speed wwith animated scaled diagrams.