Got my car custom tuned to today. I was wondering how much approximate percentage the engine loses to the drivetrain. At the wheels I put down 281 hp, 278tq. Any help would be great, just wanted to get a rough value at the flywheel.

 

i apologize, it's the other way-- 281 tq, 278 hp at the wheels.

 

somewhere between a 20-25% loss...

 

Having two hypoids really eats up the power and after you total up all the bearings, meshing gears and parasitic drag I would estimate the drivetrain loss to be at least 28%.

Jon@TRE

 

I was told 25% after i got my tuned on the dyno...