Ok I was wondering has any one took out their spare tire for maybe weight issuesand left it out? Also does any one use a full size matchin spare?
and you notice that at:I have been driving without a spare to gain a few ponies.
The spare and jack weigh 40lbs.
I estimate this gains a little more than 3HP.
((Horse power / car weight) x pound reduction) = horse power gain
(340hp / 4066lbs = .084%) x 40lbs = 3.3 horse power gained.