Quote:
Originally Posted by 904FRSlow
Either way, driveshaft helps achieve 200 whp without e85.
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Again, the driveshaft does not help.
Here's another reason:
While measuring the "Brake Horsepower" the oldest method in existence is to run the engine (or CAR in the case of a chassis dyno) at a constant RPM while applying the "Brake" and finding the point at which the engine can just hold RPM at max output.
The hp rating was determined at this constant RPM by how much power is consumed in the "brake" (hence the term "brake-horsepower")
How much hp is a lightweight driveshaft stealing from the system while it is rotating at constant RPM? the exact same amount as a heavy driveshaft rotating at constant RPM - ZERO.
Will a driveshaft that weighs 10 pounds lighter than your competitor help you beat him to the end of a quarter mile? - SURE.
The same as removing the 10 pounds from anywhere on the car.