Quote:
Originally Posted by MPR
Is 55lbs doing anything for a ~4000 lb car though?
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Stock:
Assume weight of 3875#
Assume engine at 400HP.
0.1032 HP per #
or 9.6875 # per HP
Stock but remove 55#:
Assume weight of 3820#
Assume engine at 400HP.
0.1047 HP per #
or 9.5500 # per HP
Stock but add 5HP:
Assume weight of 3875#
Assume engine at 405HP.
0.1045 HP per #
or 9.5679 # per HP
So its about equivalent to adding 5HP, but not just at peak but every RPM. Will you feel it? Nope. 55# in weight reduction alone is about equivalent to an intake... you will hear a difference but you wont feel anything
But the way it effects your power/weight is pretty exponential as you add more power and further reduce the weight. But this only makes sense if you continue to mod.. to just take an otherwise stock G42 and remove the back seat, ya pointless.
55# is about 1.4% the weight of the car though. Cumulatively, that has got to add up right. If you were running consistent laps around a decent length track, that might show up.