Drivetrain Power loss

[LFT-OOF]

i know the powerloss from motor to wheels is diffrent in diffrent car what is the usual loss in a fwd..? because i was just wonding if a sportivo make 141kw at the motor and most get dynoed making 105kw or around there is Roughly 30% isnt that alot for a fwd car..?

[ben yip]

I own ZRE and dyno loss is 28-30%

Dyno is just a number, does not mean you lost 30% of power in reality,

Dynodynamics lost 30%, but dyno jet lost 15%.. and a lot of parameters in the dyno you can set to output a number. Last time someone change the weather temperature in the dyno and he got much more power!!!

and I have been dynoed few times, everytime has different A/F ratio , and different power (but within 2kw range), and different torque !!!

Edited October 19, 2011 by ben yip

[SuperDave]

Don't get too caught up with drivetrain loss and so on. The only numbers that count are the increases that occur on the same dyno as you apply mods. Don't compare peak numbers betwen dynos, look at the gains (or losses) other people got for ideas. Even then different conditions influence the numbers.