Quote:
Originally Posted by chemhalo
I dont know if there is a way to log boost/rpm on a BMW, but there is no technical reason for a car with Procede to make x psi in more time than it takes a stock car. I personally think there might be an illusion of more lag because peak torque is larger and occurs later in the powerband with procede. A graph of boost/rpm could prove that wrong though. My only other thought would be that a piggyback system causes the lag somehow vs a true ECU flash like Dinan. But still, I cannot think of why that would happen either.
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Well, both owners of the procede cars thought they had more turbo lag too. It was really noticeable. One car had 1.47 and the other had v2.xx (something). They both have different torque curves, although it pretty close to stock and wouldn't account for the full second (or so) of nothingness, before you accelerate.
Btw, I drove both a few runs on different autocross courses, where you are constantly going from braking to WOT, which really showed the lag.