Originally Posted by SCCAForums.com
Swamp, you are forgetting bout gearing too... a very important factor in acceleration, especially from a stand still.
Gearing can have a major effect on ET, but tends to not be too important a factor in terms of trap speed.
The fact is that the GT-R performs better than its specs in terms of the quarter mile trap speed. With a given that the observed dyno numbers referred to earlier may be accurate, that makes me believe that the Nissan is handicapped when strapped to a stationary dyno, and makes more power out on the road or track.