Unsprung weight?
 

Ok, i am looking into some new rims, and i am curious how much better buying a 15lb 17" Motegi Trak Lite Forged rim is than buying a rim that is 10 lbs heavier?

what does the difference in 40-50 lbs of unsprung weight actually mean to my acceleration and 1/4 mile times?

help me out fools, O and what would be equivalent to the Motegi Trak Lites at 15lbs for 17"x7" rims?? FORGED!!!



Thanks
Dan

40 lbs would mean night and day.... it would reduce your acceleration, thus killing your 60's .... i drove a friends Eclipse with 18s, not only did it have a larger rotational diameter but they were heavy too...all i can say is that my 86 buick century felt faster.. ok, maybe not but it was much slower... ;)

yeah it;s just the weight and rotational mass of some of the rims that kill you....lighter is going to be easier to turn up and get you where you are going...

I would recommend lighter if you are looking for speed etc....but for looks then the heavier...

how about cf rims ? ;)

EDIT: Does't the unsprung weight matter only for the suspension ? i know the evo 8 uses billet aluminum lower control arms just to reduce the unsprung weight

i don't think its only suspension... as far as i know its: suspension/brakes/rims/tires

A. I can't believe no one makes them yet... they make CF wheels for motorcycles...

B. Unsprung weight is really only applicable to suspension dynamics... but the extra rotating mass will DRASTICALLY slow down his car.

I thought porsche had optional cf wheels? I thought i saw that somewhere....

they should make plastic rims...i mean they say "PLASTICS MAKE IT POSSIBLE"... :D

yes they will.

i went from 17's with 205/40/17 to Rota 15's with 205/55/15 and its night and day with way too big of tires. So, get the lightweights man. Function also equals form when you know what youre doing. 15/16's look a hell of a lot better than clown shoes. its a civic man, not a 'lac.