Quote:
Originally Posted by MauriSSio
it might or might not be 662hp at the crank but we know its a legit 600+rwhp car. ZR1's only typically dyno 530-540rwhp so the GT500 is extremely efficient at putting it down to the wheels it seems
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There's no question about it. At standard atmospheric conditions, that egnine makes 662 hp. That's it. No if's, and's, or buts.
It was measured according to the requirements of the SAE standard procedure. And SAE certification requires a third party witness to be present to acknowledge that proper protocol was followed and that the numbers are accurate. No further proof is needed.
Quote:
Originally Posted by VADER SS L99
I think some of the reason for this is the 1 piece carbon fiber driveshaft which is a great idea btw. Its drivetrain loss probably truely is under 15%.
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The carbon driveshaft is not for efficiency. It's to keep mass down and to keep rotational inertia low so that you can safely run at high speeds (200 mph).
Any time you increase the torque output of an engine, drivetrain mass creeps higher and higher in order to handle that torque. Carbon fiber shafts help to mitigate mass creep.