I was talking to a friend with a 2.4 about trading rims What do you guys think of that ? Will i see any better performance ?

 

oh my gosh. are you serious. better performance? you might but why are you thinking about it

 

If I ever get aftermarket rims... they'll be 17's for sure... the 18's look sick... but less rotating mass is always better.

 

reason i say better performance if i switch to 20's i lose HP to the ground with larger weight and rotating mass. but if i went smaller less weight less rotating mass

 

not to mention the stock 18s are heavy as *****

 

Me and a friend of mine were gonna do a even swap i give him my 18's he give me his 17's

 

Their tires aren't nearly as good as ours... you'll be losing out there.

 

I shaved 10 lbs on each corner with my 17x7.5" Rotas and Toyo's. Total weight saved 40lbs! Ten pounds of rotational mass off each of the fronts makes a big difference in power to the ground and speeding up.

 

uhh i could always get better tires i have already looked at some for winter and summer alot cheaper to

 

with 17s in the 1/4 mile you will have to shift into 4th just before the finish line, as the 18's you can ride on through.

 

if ur planning on doing autocross u should go with 17's or smaller...

 

I plan on doing things, some of which are legal ( go to the drag strip/auto cross) and some illgeal thing whicth i am not at liberty to say but i have Tag GM STage 3 with front strut bar and rear sway bar.

 

17's or smaller.......

 

it also seem there is alot more options for tires then with the 18's also

 

there are the same amount.... for 17's and 18's its 17.5 that is a bitch to fit

 

i honestly think the 18's look better. but if your doing all that **** go wit smaller

 

when i look at tire rack . com i get 11 choices for tires with a V rating and above with thw 18's . with the 17;s i get 55 choices

 

Grassroots mag. did a test of how tire sizes effect preformance. IIRC 16" was the best all round with 17" in 2nd, 3rd was 18" and last was 15"

 

I get the whole save weight, but lets face it, we don't drive race cars. Say you want to go to the track for the day, only have a half of tank of gas, that will save you 48lbs right there.
To me doing something like that is pointless, your friend is going to make out on that deal, getting 18's and better tires for his shatty 17's. Did you forget that is what you paid for? the extra sticker price wasn't just for the wing and a supercharger.