Quote:
Originally Posted by swamp2
If the SC package delivers more torque over that broad of an rpm range the hp must increase in about the same ratio. Have you seen a dyno run for the SC package. Could it be that the torque is onlydelivered so low in rpm that the peak hp is not affected much?
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What I have been told by a 997 Turbo owner is that the full overboost is available between 2100 and 4000 rpm, and then tapers off gradually until it's at "normal" boost by the time you get to the power peak, which is therefore unchanged. He said it's most apparent in first and second gears, but that even in third and fourth, it's there after the shift.
On the other hand, I've just read devo's post, and in addition to being authoritative, it makes complete sense to me.
If devo is completely correct, then in my opinion the overboost isn't available for long enough during a quarter mile run to materially affect the trap speed. In that case, its augmented power (estimated from quarter mile speed) is from something else entirely.
Bruce