Quote:
Originally Posted by ChuckD
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.
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.
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You might be right but guess what? the byproduct is that with that paticular driveshaft that car WILL dyno higher #'s then with the old 2 piece steel shaft.