View Poll Results: 18in or 17in
17in
227
47.29%
18in
253
52.71%
Voters: 480. You may not vote on this poll
18in or 17in
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Joined: Feb 2005
Posts: 43
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There are a few missunderstandings about this whole thing.
The Evo got 17's stock, and it fits the stock suspension, the stock brakes, and the stock power.
But if you are modding you car, with coilovers, more power(on the other side of 300whp), going with a light weight 18's would not hurt performance.
A note on this is JGTC, where they run 18" in front and 17" in the rear, reason? ......better steering input, plus a little more sidewall in the rear(rwd)
As far as brake size goes, bigger brakes isnt always answer. I come from the gen2 MR2 enviroment, this last scc tuner challenge a mr2 with stock brakes, only upgraded pads and lines, stoped from 60 in 97ft....repeatedly.
The only reason to upgrade the EVO8 brakes is if you notice major brake fade during repeated braking. I doubt a bigger brake system will make it brake faster, i.e. I doubt the stockers is unable to lock the brakes without the ABS.
T
The Evo got 17's stock, and it fits the stock suspension, the stock brakes, and the stock power.
But if you are modding you car, with coilovers, more power(on the other side of 300whp), going with a light weight 18's would not hurt performance.
A note on this is JGTC, where they run 18" in front and 17" in the rear, reason? ......better steering input, plus a little more sidewall in the rear(rwd)
As far as brake size goes, bigger brakes isnt always answer. I come from the gen2 MR2 enviroment, this last scc tuner challenge a mr2 with stock brakes, only upgraded pads and lines, stoped from 60 in 97ft....repeatedly.
The only reason to upgrade the EVO8 brakes is if you notice major brake fade during repeated braking. I doubt a bigger brake system will make it brake faster, i.e. I doubt the stockers is unable to lock the brakes without the ABS.
T
It shouldn't be off by more than a couple percent. When you get bigger wheels, the sidewalls of the tires are shorter, so the actual rolling diameter is almost exactly the same between 17" and 18" rolling stock.
Yeah, we're pretty lucky actually, the rolling diameter difference between 17's and 18' is only about .01 inches:
Example: 235/45 R 17 = 235mm X 45% X 2 (sidewall height) /25.4 (convert to inches) + 17 =25.4 inch diameter X pi = 79.81 rolling circumference
235/40 R 18 = 79.80
The 18 inch wheel is a tiny, tiny bit smaller in terms of rolling diameter with rubber than the 17 but not significant.
The wider your rubber, the bigger the variance between tire circumference when you go up a wheel size, largely because the aspect ratio is only specified in multiples of 5. So 5% of 235 is smaller than 5% of 315.
Example: 235/45 R 17 = 235mm X 45% X 2 (sidewall height) /25.4 (convert to inches) + 17 =25.4 inch diameter X pi = 79.81 rolling circumference
235/40 R 18 = 79.80
The 18 inch wheel is a tiny, tiny bit smaller in terms of rolling diameter with rubber than the 17 but not significant.
The wider your rubber, the bigger the variance between tire circumference when you go up a wheel size, largely because the aspect ratio is only specified in multiples of 5. So 5% of 235 is smaller than 5% of 315.
Originally Posted by si_eater
i say 17' s you go to 18 and if you dont lower the car will look like a pick-up
with 17 and wider cant go wrong and you wont need to lower
with 17 and wider cant go wrong and you wont need to lower
ok i got you yeah i didnt mention that if you decide to go with large tires
. in my opinion i dont like the looks of my car being on blades or rubber coated rims(since tire is so thin) and risk busting my $1600 set of rims do t a freakin pot hole and since i race mine thin tires really dont convince me
. in my opinion i dont like the looks of my car being on blades or rubber coated rims(since tire is so thin) and risk busting my $1600 set of rims do t a freakin pot hole and since i race mine thin tires really dont convince me
Originally Posted by nsnguyen
What you just said makes no sense whatsoever. Since there's less rubber on the tires, the wheel/tire combo will look like they fill the wheelwells more. I haven't seen any pickup trucks running 40 series rubber besides crazy ones like the SRT-10.
Evolving Member
Joined: Mar 2004
Posts: 428
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Originally Posted by PAIDMADELAID
I think the tires would be the real factor regarding which is faster. Tires weigh a lot so if you got some light 18's with 35 tires you would be just as light or lighter than stock. Plus, the overall diameter would be close. The "Evo Orgy" article in Sport Compact Car had 8 Evo's tuned by different companies. About half of them ran 18's and half had 17's. Do you think companies like Works, RB, and XS Engineering would put 18's on their cars if they thought it would hurt performance? No way!