Tire Size Gear Ratio Rpm Calculator

Enter in the fields and click the calculate button to view your results. Custom designed parts for street rod and other makes. Complete systems front and rear custom axle housings big brakes and more for your pro touring mopar.

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Calculate gear rpm mph tire diameter.

Tire size gear ratio rpm calculator. This calculator allows you to enter 3 of four variables and it will compute the other based on your input. This calculator is for entertainment value only. 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. Enter in the fields and click the calculate button to view your results.

You may not be sure of the type of transmission you are currently using. This calculation is used to match oversize tires with new ring and pinion gears to obtain the desired engine rpm at highway speed. Tire size change calculator this calc can be used to find a new gear ratio. Scroll through the list of popular transmissions to find yours.

Not to be used in place of real testing. Engine rpm calculation basics. Drag max rpm slider to adjust the range of the rpm and km h gauges. Automatic transmission in drive.

Use our gear ratio calculator to find the effective gear ratio your vehicle will have with a new tire size. Or change input variables engine rpm axle gear ratio and tire height to determine vehicle speed in each forward gear. Custom tubular suspension systems with coil overs and rack and pinion steering. Enter diff gear ratios and tire diameter then drag rpm slider to calculate speed from rpm.

Use this calculator to determine your gear ratio and vehicle s speed in any gear and any engine rpm for best performance. The results will then be. 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. 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.

Recommended rpm 60mph. 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. Automatic transmission in overdrive. Bigger tires are more functional look better and rob you of power.