Drive train loss...a question to think about....
08-02-2005, 07:37 PM
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Drive train loss...a question to think about....
Drive train HP loss is often said to be a set percentage of crank HP. For example, 20% loss is often quoted for the TT Quattro.
Why would it always be a set percentage no matter how much crank HP you have? It seems like the force required to turn the drive-train and move the car would always be the same and not always take 20% of crank HP. Wouldn't the percentage of loss decrease as the HP increases?
225 crank hp x .20 = 45 hp loss to 180 whp
500 crank hp x .20 = 100 hp loss to 400whp
...just doesn't seem right.
I should just search more for this info, but does anyone have a quick answer? Just wondering.
Why would it always be a set percentage no matter how much crank HP you have? It seems like the force required to turn the drive-train and move the car would always be the same and not always take 20% of crank HP. Wouldn't the percentage of loss decrease as the HP increases?
225 crank hp x .20 = 45 hp loss to 180 whp
500 crank hp x .20 = 100 hp loss to 400whp
...just doesn't seem right.
I should just search more for this info, but does anyone have a quick answer? Just wondering.
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