Drag Car Gear Ratio Calculator. Tyre diameter is automatically calculated from tyre profile info. Use this calculator to determine your gear ratio and vehicle’s speed in any gear and any engine rpm for best performance.
Vehicle weight (in pounds) vehicle horsepower. The air density ( p) here is the equation. Enter diff + gear ratios and tire diameter, then drag rpm slider to calculate speed from rpm.
For example a tire that. Use this calculator to determine your gear ratio and vehicle’s speed in any gear and any engine rpm for best performance. The gear ratio calculator uses 2 combinations of gears to output an overall drive ratio.
By making changes to your spur and pinion gears, you can influence your car’s speed of acceleration and top end speed. Gear ratio = (π * diameter of input gear)/ (π * diameter of output gear) the above expression relates the circumference of the input gear to that of the output gear. Rpm through lights (finish line) tire diameter (hght.) in inches.
The first set is the main gear set which is generally starting at the motor or nitro engine. Enter your 1/4 mile race car's information into our calculator to see how well you will perform. (3 speed or 4 speed, etc.) 2 speed 3 speed 4 speed 5 speed 6 speed 1st gear.
Then, change richmond's performance gear ratios and beat your best time! Your vehicle will probably run at different rpm’s than those you calculate. Use this gear ratio calculator to select the best ring & pinion and gear ratio combinations to serve your needs.
This very simple calculator will allow you to see how gear ratios, final drive, rev limit, and tire size affect your speed in each gear. 4.10 x 0.78 = 3.198, we'll round that off to 3.20. Enter transmission and rear tyre data in the yellow boxes.
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