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Yeah about 18% loss in the drivetrain.....



Some FWD cars are less and some vehicles are less or more....



Most places use 18% loss now in the calculations.



Todd Z
 
is interesting to note what you can get with the 6rs, doing bolt-ons and a proper tune.

Am 209 at the wheels on a Dyno-jet.

Thats 264 Crank +/-, pickup of 54 Crank H.P.

My new roush crate engine will be tuned this thursday, rated at 525 crank using an Engine Dyno, should come in at about 450 Ish at the wheels using the above site, we shall see.
 
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