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Old 01-04-2006, 06:21 PM   #1
dream
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Default What tire size for my 18's

Well I plan on buying some 18 x 8.5 Work Emotions sometime soon and was wondering what the best tire size would be for me. I daily drive the car in the summer and do some occasional street racing and maybe a few track days thought out the summer.

I was thinking 245/40/18 but I hear that will mess things all up. I was told to get something like 255/35/18 but I dont want any rub (will have coilovers with a 2" drop maybe alittle less) and dont want to wreck the wheels hitting one pot hole (I live in MN, pot hole state). So what do you guys think?
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Old 01-04-2006, 06:26 PM   #2
readymix
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You should be fine with 255 35 18s in terms of pothole avoidance. Not sure on the clearance issues in relation to lowering the car.

255 35 18s will give you a nice 3.5" sidewall which should be plenty of cushion. Plus, 255/35/18 will be very close to the stock circumference.
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Old 01-05-2006, 03:40 PM   #3
JDM addict
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Old 01-06-2006, 01:27 AM   #4
waktasz
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Quote:
Originally Posted by JDM addict

What offset are those and what suspension are you running, you big stud, you
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Old 01-06-2006, 02:56 PM   #5
wrxin'
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im running on stock suspension and have rubbing inssues with my work emotion cr's im running bf goodrich kdw2's (255/35/18's) i hear different brands i might not have rubbing issues. so im stuck right now weather to go to a 245 or just try my luck with a different brand in a 255/35.
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Old 01-06-2006, 03:28 PM   #6
WShade
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JDM addict
Very nice stance.

Wow, if wrxin' is rubbing with a stock setup and the same wheels you are going to have trouble with a 2 in drop dream.
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Old 01-07-2006, 08:42 AM   #7
boxerboy
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245/35/18's should work fine.
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Old 01-07-2006, 10:06 PM   #8
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Quote:
Originally Posted by waktasz
What offset are those and what suspension are you running, you big stud, you
+45

Tein S-tech on Ohlins struts.
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Old 01-07-2006, 10:07 PM   #9
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Quote:
Originally Posted by WShade
JDM addict
Very nice stance.
Thank you very much, I am proud of setting it up myself
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Old 01-08-2006, 07:40 PM   #10
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+45 and 265's, dude, how did you manage that? Seriously...
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Old 01-08-2006, 08:01 PM   #11
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Dream: The OE RE070 rolling diameter is 24.9", and it's best to stay as close to that as possible for torque-to-the-wheels reasons, but you can go up a little. Your OE offset is +53, and again, it is best to stay as near to that as possible. Don't forget about your tread width either, stock is 8.7", more like a 235 than a 225, so a 255 doesn't seem like that much of a jump, but it can be depending on the tire.

wrxin' increased his section width by 1.3" (from 8.9 to 10.2), and probably did the same for his tire width, then pushed the wheel out by 10mm (+53 to +43). My advice is to pick one or the other to increase, not both. If his wheel was a +50, or his section width and tread width were 9.6" and 9.8", he probably wouldn't have a problem.

Go to www.tirerack.com, pick a tire, and check the specs, you'll obviously need something with a smaller section width. I'm trying to figure out how JDM Addict is getting away with a 265 right now...
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Old 01-08-2006, 08:08 PM   #12
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JDM Addict: Those look like S03's on an 18X8.5 +45 ADVAN RCII, specs are...

Overall diameter: 25.4" (+.5)
Section Width: 10.8" (+.9")
Tread Width: 9.7" (+1.0")
Increase towards the inside: 12.7mm
Increase towards the outside: 20.7mm
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Old 01-09-2006, 02:55 AM   #13
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Quote:
Originally Posted by UltimateLurker
+45 and 265's, dude, how did you manage that? Seriously...
By careful observation, some simple calculations, and slowly inching up

Quote:
Originally Posted by UltimateLurker
I'm trying to figure out how JDM Addict is getting away with a 265 right now...
This is the very 1st time someone question me on my proudly maxed out wheel/tire set up, I am excited!!

Ok, my 1st wheel/tire set up was 18x8 +50 on 245/35.....planty of room left, then I put some 255/35 on the same wheel, still a lot of room left. Then I got these 18x8.5 +45 Advan with the same 255/35, still some room left. So I slap some 265/35 on these same Advan and bingo......maxed out

Quote:
Originally Posted by UltimateLurker
JDM Addict: Those look like S03's on an 18X8.5 +45 ADVAN RCII, specs are...

Overall diameter: 25.4" (+.5)
Section Width: 10.8" (+.9")
Tread Width: 9.7" (+1.0")
Increase towards the inside: 12.7mm
Increase towards the outside: 20.7mm
haha.....you are looking into it

Your guess was close.......they are Potenza RE750. You go do your math. You forgot one very important factor, the camber setting. If I remember right, mine are set at -1.25 degrees. The last piece of info is my fender lip is 100% rolled flat.
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Old 01-09-2006, 09:15 AM   #14
pom_sa
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very nice
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Old 01-09-2006, 10:37 AM   #15
UltimateLurker
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Quote:
Originally Posted by JDM addict
You forgot one very important factor, the camber setting. If I remember right, mine are set at -1.25 degrees. The last piece of info is my fender lip is 100% rolled flat.
That explains it. Looks awesome, but you knew that .
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Old 01-09-2006, 08:06 PM   #16
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Quote:
Originally Posted by UltimateLurker
Looks awesome, but you knew that .
oh yeah, I stared at it every chance I get. I love that hair gap clearance concept car look
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Old 01-11-2006, 11:09 AM   #17
wrxin'
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Quote:
Originally Posted by UltimateLurker
Dream: The OE RE070 rolling diameter is 24.9", and it's best to stay as close to that as possible for torque-to-the-wheels reasons, but you can go up a little. Your OE offset is +53, and again, it is best to stay as near to that as possible. Don't forget about your tread width either, stock is 8.7", more like a 235 than a 225, so a 255 doesn't seem like that much of a jump, but it can be depending on the tire.

wrxin' increased his section width by 1.3" (from 8.9 to 10.2), and probably did the same for his tire width, then pushed the wheel out by 10mm (+53 to +43). My advice is to pick one or the other to increase, not both. If his wheel was a +50, or his section width and tread width were 9.6" and 9.8", he probably wouldn't have a problem.

Go to www.tirerack.com, pick a tire, and check the specs, you'll obviously need something with a smaller section width. I'm trying to figure out how JDM Addict is getting away with a 265 right now...
Thanks for the advise!!!! im looking to get some new tires this spring an will definately give it a try.

Thanks again.
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Old 01-11-2006, 03:31 PM   #18
Subiemax
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Quote:
Originally Posted by JDM addict
By careful observation, some simple calculations, and slowly inching up



This is the very 1st time someone question me on my proudly maxed out wheel/tire set up, I am excited!!

Ok, my 1st wheel/tire set up was 18x8 +50 on 245/35.....planty of room left, then I put some 255/35 on the same wheel, still a lot of room left. Then I got these 18x8.5 +45 Advan with the same 255/35, still some room left. So I slap some 265/35 on these same Advan and bingo......maxed out



haha.....you are looking into it

Your guess was close.......they are Potenza RE750. You go do your math. You forgot one very important factor, the camber setting. If I remember right, mine are set at -1.25 degrees. The last piece of info is my fender lip is 100% rolled flat.
Congrats on the big nuts of JDM addict. And the big pocket book.
School us all!!
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