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Old 12-03-2004, 02:42 AM   #1
DieselClown
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Default SSR Comp 18X8 - will 235/40/18 work?

I have a slow leak that I discovered today and wanted to change all 4 tires anyway. These will be striclty summer tires only so will I be able to pull off 235/40/18 without rubbing on an Eibach dropped 2005 wrx? I was thinking about going with the GS-D3, but I just primarily want a tire that can handle great in the dry + wet but QUIET above all else. I'm currently running Kuhmo Ecsta 712 Type POS and they are so loud I usualy want to hurl.

Will 235 rub? if not, can I go higher on an 18X8 wheel? Thanks.
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Old 12-05-2004, 03:47 AM   #2
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bump. I know it depends on the tires, so does anybody know if the following will fit?

GS-D3
Falken Azenis Sport
Pirelli Pnero M&S
Toyo Proxes A/S
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Old 12-05-2004, 03:52 AM   #3
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you neglected to mention what the offset of the wheel is, which really determines how close the tire will get to the fender/strut.
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Old 12-05-2004, 07:31 PM   #4
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Depending on the tire that size may rub, but your better off going with 245/35/18's. We have the same wheels on our wrx and the toyo's in that size work great, no rubbing.
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Old 12-06-2004, 12:50 AM   #5
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the offset is +51, if I remember correctly as I think that's the only offset that works with the SSR Comps in 18X8. Anyway, I never thought about going wider and shorter as VisionaryRacing suggested. Will the 35 be shorter than the 40 in my 225/40/18? Also, with the 245, I'm not sure how it would not rub as much as the 235?
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Old 12-06-2004, 12:54 AM   #6
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Furthermore, here's a short list of attributes that will sell me the tire.

above all, quiet, and comfortable.
tread life
performance in dry and wet

I've searched the threads that it seems that the Eagle F1 GSD3's are the closest match as they are quiet, and grip as well in the dry and wet. But, I'd like to consider cheaper tires at the expense of dry performance as well as I only occasionally drive spiritedly and NEVER autocross. Thanks for the help.
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Old 12-06-2004, 02:15 AM   #7
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51 offset you should be fine with 235-40-18. but that size is taller than stock by almost 0.5 inches! thats why 245-35-18 was mentioned. its a lot closer to stock diameter than 235-40-18. the 245-35-18 is only 0.1 inch shorter than 225-40-18 by calculation, which is negligible in my mind. and going wider and shorter (or same diameter) is better than going taller. better gearing and acceleration. with a 51 offset the only thing i would worry about is rubbing on the strut side. you shouldnt rub on the fender but i could be wrong.

the TOYO T1-S would be the perfect tire for you. its very quiet and very comfy. awesome tread life and it is known to be the best wet performing summer tire. and of course in the dry it rules too. i would put the gsd3 second on your list for what you want. but the next best choice nonetheless.
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Old 12-06-2004, 05:48 PM   #8
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Not trying to be a jerk, but I ran Toyo T1-S tires in 245/40/17 and they were pretty loud. I think just about any directional tire will have increased road noise.

You have to decide how much comfort your going to give up for performance, because 95% of the time, you cannot "have your cake and eat it too."

Oh, and if you go with a 35series sidewall, comfort is going to be significantly decreased coming from the stock 55 series. That's a given.
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Old 12-06-2004, 06:47 PM   #9
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i guess i never had the T1-S long enough to where they got loud. i sold my set at about 10k miles. they were the quietest tire ive driven. other tires ive had are re-92, re-040, es100, and azenis sports.

245-35 and 225-40 have the same sidewall height (off by 0.1 inch) so the comfort between the two sizes, given the same tire, is essentially the same.
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Old 12-06-2004, 06:51 PM   #10
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I definately agree with that. I was mainly speaking of the difference between a stock 55 and a 35, or even the 40 that I ran.
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Old 12-06-2004, 08:11 PM   #11
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i don't know about the new 615 Azenis, but the old 215s are LOUD. not a "comfort" tire. i've heard great things about the P-Zero Nero.
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Old 12-06-2004, 08:23 PM   #12
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oh yeah i almost forgot about the Nero. that is a really good tire that doesnt get alot of attention.
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Old 12-16-2004, 12:10 AM   #13
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thanks for the info!!!!! The thing is I want a more comfortable ride and as much protection as possible for my rims with the taller sidewall. I think 235/40 would be perfect as I'd get a little more rubber on the pavement AND have slightly more comfort and protection. So there most likely will NOT be any rubbing with 235/40/18 and an Eibach drop right?
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Originally Posted by YinUCSD
51 offset you should be fine with 235-40-18. but that size is taller than stock by almost 0.5 inches! thats why 245-35-18 was mentioned. its a lot closer to stock diameter than 235-40-18. the 245-35-18 is only 0.1 inch shorter than 225-40-18 by calculation, which is negligible in my mind. and going wider and shorter (or same diameter) is better than going taller. better gearing and acceleration. with a 51 offset the only thing i would worry about is rubbing on the strut side. you shouldnt rub on the fender but i could be wrong.

the TOYO T1-S would be the perfect tire for you. its very quiet and very comfy. awesome tread life and it is known to be the best wet performing summer tire. and of course in the dry it rules too. i would put the gsd3 second on your list for what you want. but the next best choice nonetheless.
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Old 12-16-2004, 12:23 AM   #14
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i couldnt comment on that as ive never tried that combination personally.
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Old 12-16-2004, 09:49 AM   #15
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Quote:
Originally Posted by DieselClown
thanks for the info!!!!! The thing is I want a more comfortable ride and as much protection as possible for my rims with the taller sidewall. I think 235/40 would be perfect as I'd get a little more rubber on the pavement AND have slightly more comfort and protection. So there most likely will NOT be any rubbing with 235/40/18 and an Eibach drop right?
You will be fine with that offset wheel with that tire size. However, if you are looking for comfort and low noise you have the wrong rim size. Every car I have ever had with 18's has been noisey. Has a lot to do with the minimal amount of sidwall height for which to absorb sound fromt he tires contacting the road.
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Old 12-16-2004, 04:26 PM   #16
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I already have the rims. I actually wanted to go 225/45/18 but not a lot of companies make tires that size. So are there any specific tires that will "fit" more with 235/40/18? I was going to go with the Bridgestone RE750.
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Old 12-16-2004, 06:12 PM   #17
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i think 235-40-18 is as big as youd want to go, diameter-wise.
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Old 12-17-2004, 08:42 AM   #18
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many use 235/40-18 with no issues
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Old 12-17-2004, 11:11 AM   #19
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Who are all of you people who use 245/35-18 tires with no rubbing??? I would love to see a picture of the outside sidewall of them and show me 0 rub marks.

Diesel, sorry I didn't get back to your PM, I'm just going to respond here. Granted, I don't have the 18x8's, mine are the 18x8.5 SSR Comps and I'm on Pink springs.. I ran 235/40-18 PZero Nero M&S's and had no noticable rub, I did notice the line on the sidewall, and my little lip protector plastic piece was pretty chewed up in a spot or two.. but it wasn't bad.

I had already purchased the S-03s in 235/40-18 and they were noticably wider even though they were in the same size, so I rolled the problem spots.. can't tell you how much because there isn't much accuracy using a jack, a heat lamp, tape and a baseball bat.. But with the rolling, the S-03's rubbed, but about the same amount as the PZeros.. you can see the line on the back two, but its not bad. With two big guys in the back, on a hard corner, you could very much hear it rub though..

Sorry for the long message, but here's the deal, a 235/40 is .5" taller on a 25" diameter wheel.. it changes your speedo 1 mph at 60 mph.. its not that detrimental.. also, there are a hell of a lot more tires in 235/40 than 245/35.. and if you wanted a perfect diameter, go 255/35.. Depending on the actual width of the tire, a 235/40 will work without a problem, maybe a minor rub if you go with a wider one. All in all, 235 on an 8" is the way to go, I would have loved to go with a 245 b/c on an 8.5, 235 doesn't give a lot of rim protection, on an 8" wide, 235 will be fine.
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Old 12-18-2004, 01:55 AM   #20
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thanks all for the help! I'm glad the 235/40 wouldnt rub, or as much because I really think that's the perfect size, with more rubber on the pavement PLUS a bit more rim protection. So SLK, you dont think I would have to roll the fenders huh? I wouldnt even know how to if I had to. I want to get the Bridgestone Potenza RE750's in 235/40 in spring of next year when I throw back on the wheels. I had the re730's awhile ago and absolutely loved them! Thanks for the replies!

Last edited by DieselClown; 12-18-2004 at 02:01 AM.
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Old 12-18-2004, 02:51 AM   #21
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everytime I search, I add more tires to the equation! I'm confused as to which tire to pick now.

Last edited by DieselClown; 12-18-2004 at 03:18 AM.
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Old 12-18-2004, 11:51 AM   #22
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I just saw JDM addict post on another forum that he runs 255/35/18 with BBS RE (18x8 offset +50). he even says theres room for 265s on there. IF YOU HAVE COILOVERS then I dont see any problems with you running this... but since you dont, I would get underneath your car and have a good look. I know that 235 or a 245 should definetly fit for sure though.
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