Conversion Factor

[RedRamRules]

If we wanted to convert the power seen at the wheels to the power at the crank, what is the conversion factor to use? My friend says there would likely be a loss of 15% from the crank to the wheels, anyone know for sure? Thanks.

 

[OCBob]

Juan, I'm not sure that there is a definitive number. Figure somewhere around 15-20% would be close to right. If you look at stock dyno numbers that seems to be pretty accurate.

 

[RedRamRules]

Cool, thanks bro

 

[ViperTruck2933]

I have heard 15% for RC trucks and 20% for QC (automatics). :dontknow:

 

[tat2stuff]

usually you use 15%

 

[Justanotherdodge]

I've always heard that Auto trannies cause more loss unless they are full race autos like powerglide:rock:

 

[BOOMER]

I've always heard that Auto trannies cause more loss unless they are full race autos like powerglide:rock:

not so much with the new tranny's when they go into full lock up. its not as bad as it used to be.