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Old 07-19-2011, 10:03 PM   #201
nhat
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Quote:
Originally Posted by olazy
hi guys, i need some advice fitting my wheel/tire setup, i have a set of xxr 527 18x8.85 +35 with federal ss595 245/40/18. i test fitted them and obviously they are rubbing like crazy in the rear. i know i probably should have went with a smaller tire but i'm trying to work with what i got. any hope of getting these to fit? also how is everyone adding rear camber to their 2011s? lower rear control arms? do rear camber bolts work? i'm planning to roll my rear fenders. thanks in advance guys.
no you should have already rolled your rear fenders or bought a higher offset.

there are no rear camber bolts so lower rear control arms are how you adjust camber.
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Old 07-20-2011, 09:39 AM   #202
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not sure if they work for the 2011's, but for my 2009, I have the Whiteline Adjustable Rear Camber Kit installed.
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Old 07-22-2011, 04:06 PM   #203
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Hey guys, looking for some advice i went through the all the posts and i want to make sure with out a shadow of a doubt that these wheels will fit... i am looking at the xxr 527 i am currently sitting on bc br coilovers... i am looking to get the xxr 527 18" 8.75 with a +20 offset and looking to run a 235/40/18. the tires can be adjusted according to what you guys recommend. i am looking i nice simple poke... i know obviously the rears have to be rolled i just don't want to go through the hell of pulling the fenders. i would really appreciate your opinion on this set up
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Old 07-22-2011, 04:08 PM   #204
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Quote:
Originally Posted by jpinto516
Hey guys, looking for some advice i went through the all the posts and i want to make sure with out a shadow of a doubt that these wheels will fit... i am looking at the xxr 527 i am currently sitting on bc br coilovers... i am looking to get the xxr 527 18" 8.75 with a +20 offset and looking to run a 235/40/18. the tires can be adjusted according to what you guys recommend. i am looking i nice simple poke... i know obviously the rears have to be rolled i just don't want to go through the hell of pulling the fenders. i would really appreciate your opinion on this set up
+20 and you don't wanna pull fenders? time to look for new wheels.
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Old 07-22-2011, 04:21 PM   #205
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Quote:
Originally Posted by nhat View Post
+20 and you don't wanna pull fenders? time to look for new wheels.
yeah what he said ^^

i'm having a hard time fitting 18x8.75 +35 with 245/40/18. fender rolling party this weekend.
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Old 07-22-2011, 04:27 PM   #206
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if i roll the rears that shouldn't be good enough? I am just looking at this page and he looks to have fit them http://forums.nasioc.com/forums/show...177647&page=10
the memeber is padilla and the only difference is the 18" and 5 mm difference in offset

Last edited by jpinto516; 07-22-2011 at 04:57 PM.
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Old 07-22-2011, 05:04 PM   #207
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Quote:
Originally Posted by jpinto516
if i roll the rears that shouldn't be good enough?
it's enough if you run less tire and/or run more than -2.5* camber in the rear.
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Old 07-25-2011, 03:04 AM   #208
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Quote:
Originally Posted by nhat View Post
with ease.
Thanks!

I ran a tire size calculator, and it shows the 245/40-17 being 2.4% too fast, and the 245/45-17 being 1.4% too slow. I should go with the 45 series, right?

I guess the real question is whether the 235 or the 245 is a better size for me? I daily drive the car, and try to get at least 5 autox days in a year, and am trying to get into track days eventually. I do some good spirited driving, but would I see a noticeable difference between the sizes during autox?

Last edited by mikerulzu; 07-25-2011 at 03:11 AM.
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Old 07-25-2011, 10:51 AM   #209
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Originally Posted by mikerulzu View Post
I ran a tire size calculator, and it shows the 245/40-17 being 2.4% too fast, and the 245/45-17 being 1.4% too slow. I should go with the 45 series, right?
Right.

Quote:
I guess the real question is whether the 235 or the 245 is a better size for me? ... I do some good spirited driving, but would I see a noticeable difference between the sizes during autox?
You would be hard-pressed to tell the difference between a 235 and a 245 during autox or any other time. 245 will have SLIGHTLY more grip. It'd be difficult to discern without a direct a/b comparison.

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Old 07-26-2011, 04:51 AM   #210
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Thanks for the help. I decided to go with the 235 since it should fit my wheels better, and keep my speedo correct.
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Old 07-29-2011, 04:13 PM   #211
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We've already been over this...

If you have to ask about +20 XXR's you shouldn't buy them!
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Old 08-02-2011, 02:38 AM   #212
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Just wanted to say how happy this thread makes me. Tires that fit wheels! It's such a glorious thing to read about here after seeing so much hellaflush on the site.

Even though I just bought some Star Specs for my stock 17" wheels, I'm starting to get an itch to pick up a set of 18" wheels for DD and put the Star Specs on the stock wheels and make them autox/track specific. Loving the look of the Linea Corse Lemans at 18x8.5" +45 with a 245/40-18.

Hmmm, looks like the ESM 004 wheel (same look as the Linea Corse Lemans) are available in 18x9" +38. That size seems to be relatively grey in regards to whether it'd need fender pulling or not? I'm guessing the correct tire there would be a 255/35-18 (or 265). The offset calculator referenced earlier gives it 2mm more clearance on the inside, but it'd stick out 28mm more.

Last edited by mikerulzu; 08-02-2011 at 03:53 AM.
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Old 08-02-2011, 10:50 AM   #213
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Hmmm, looks like the ESM 004 wheel (same look as the Linea Corse Lemans) are available in 18x9" +38. That size seems to be relatively grey in regards to whether it'd need fender pulling or not?
It's going to depend on the tire. As I posted in the original post, this car with 18x9.5" +38 and 265/35R18 needed rear fender rolling only (not pulling).



I think a 255/35R18 would fit without any fender modifications. Going to an 18x9" wheel instead of an 18x9.5" would not change the tire clearance in any material way.

For those of you who don't know these terms, "rolling" refers to folding the INNER fender metal up to make clearance for the tire. That will usually leave the outer fender unchanged. "Pulling" means actually distorting or stretching the outer fender metal to make additional room. It's hard to do it without wrinkling or buckling the metal, so it's either going to be very expensive to do (since you'll need a body shop to get it looking good again), or it's just not going to look very good from close up.

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Old 08-02-2011, 12:37 PM   #214
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I just got 255/35/18 Dunlop star spec tires mounted on 18x9.5 RPF1's. There is a slight stretch (no wheel/rim stretched beyond tire, though - hellaflush is stupid).
I will get 265s the next time around, but I could not pass up the price I got on the 255s. I rub in the rear, and will need fender rolling (maybe a slight pull) running on stock suspension.
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Old 08-02-2011, 01:21 PM   #215
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So is your tire even with the fender? If not how far in is your tire?
O and what offset did you get?
Thanks

Last edited by z-logic; 08-02-2011 at 01:30 PM.
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Old 08-03-2011, 02:21 PM   #216
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Hey Dan, great post on wheel fitting and tire sizes, really opened my eyes in terms of what is possible in modifying my current wheels/tires setup.

I do have a question though, you said that 18x9.5's with 265/35/R18's work well with a 40 mm offset. I've been trying to find a set of 18x9.5s from various sources, ive looked in Rays, Advans, Enkei, BBS, tirerack.com, rallysport direct, Rota, and more. Choices for that wheel size with a 5x100 bolt patter are very limited, however i have come across a set a Rota D-Forces, 18x9.5, 5x100, but with a 45mm offset. Id like this size wheel so that I can fit the wider profile tires on, but will that work where it is 45mm offset? I dont want to spend that much money on wheels to find out they dont fit right, or rub in some way that i cant do anything about it.

Thanks man, appreciate any advice you may have to offer
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Old 08-03-2011, 03:57 PM   #217
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Flame Suit ready....

I'm thinking of getting aftermarket wheels and the wheels i'm looking at are 18X7.5. Would a 245/35/18 tire work with these if so what issues could I run into with this size matched up to a 7.5inch wheel?

Just guaging the difficulty in the above set-up. I'll probably just stick with a 235/40/18 but was wondering if the 245/35 would work since it's 1/2 inch different in diameter from stock wheel/tire combination.
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Old 08-04-2011, 01:59 PM   #218
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Originally Posted by J_Maher_WRX View Post
I do have a question though, you said that 18x9.5's with 265/35/R18's work well with a 40 mm offset. I've been trying to find a set of 18x9.5s from various sources... Choices for that wheel size with a 5x100 bolt patter are very limited, however i have come across a set a Rota D-Forces, 18x9.5, 5x100, but with a 45mm offset.
We carry the Rota D (formerly know as D-Force) in 18x9.5 at +40 only. We've never made a +45 version. We do sell a +44 and +48 version of the 8.5" wide wheel.

Even if +45 9.5" exists, I don't know that it would fit. Strut clearance with the tire would be very tight.

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Old 08-04-2011, 02:01 PM   #219
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the wheels i'm looking at are 18X7.5...I'll probably just stick with a 235/40/18 but was wondering if the 245/35 would work since it's 1/2 inch different in diameter from stock wheel/tire combination.
245 is way too wide for a 7.5" wheel. It'll bulge out like crazy, and will tend to roll around under cornering. Some autocrossers run super-wide tires on skinny wheels because the rules don't permit wider wheels, but I wouldn't do that by choice. Even 235 is very wide for a 7.5" wheel. 225 would be perfect.

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Old 08-05-2011, 09:14 AM   #220
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looking at Size- 18x8

Bolt Pattern- Universal 5 Lugs (5x100 /5x114.3)

Offset- 45+

Hub Bore- 73.1


i am already lowered about 1" to 1.5" will i be ok on a 245/40/18 also?
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Old 08-05-2011, 10:51 AM   #221
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looking at Size- 18x8
Offset- 45+
Hub Bore- 73.1
i am already lowered about 1" to 1.5" will i be ok on a 245/40/18 also?
There's enough information in this thread to answer your question already, but to be clear: Yes, those will fit fine. They're basically stock-size STI tires, at a nearly-stock STI offset. Therefore they will fit easily under the body of any 2011+ WRX, or 2008+ STI.

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Old 08-08-2011, 12:48 AM   #222
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Here is a good Calc for the overall OD.

Ok, noob question that I could find when I searched. I'm looking to get a second set of wheels for winter/all season tires. I found a good deal on some 17x7 or 17x7.5 wheels with 40 offset. I don't think it will cause any problems, but can't seem to find a square answer.

Thanks in advance
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Old 08-09-2011, 04:06 PM   #223
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Here is a good Calc for the overall OD.
???

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I found a good deal on some 17x7 or 17x7.5 wheels with 40 offset. I don't think it will cause any problems, but can't seem to find a square answer
I'm assuming you're planning to put a skinny tire on there? 7.5" wide wheels are 1/2" narrower than the stock 17x8" WRX wheels. A 225 tire would be around the right width. That gains you 5mm of fender clearance compared to the stock 235. You're adding about 13mm of offset, so the outside of the tire will be 8mm (13mm - 5mm) closer to the fender than stock. I'm confident there's at least that much room available, so it shouldn't rub.

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Old 08-17-2011, 10:16 AM   #224
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Dan,

I figured you would be a good resource for this question, because I saw a handful of 18x9.5 +40 wheels with 275/35 tires on 08+ STI's in your Rota D-Force thread in the Gallery section. I don't think anyone would have more experience with this fitment than you guys!

I have a 2011 WRX on coilovers. Rear fenders are slightly rolled to fit the stock wheels with spacers. I am considering an 18x9.5 +40 wheel, and I am trying to decide between a 265/35 and a 275/35 tire. I am OK with rolling the front and rear fenders flat, but I would like to avoid a pull if possible.

Do you think that a 275 would fit, or am I cutting it too close?

Thanks!
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Old 08-17-2011, 11:20 AM   #225
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maybe its an optical illusion (or just me) but does anyone else think the wheels/tires in the above post stick out too far?

i agree the stock setup is too far inboard but having the top of the tire at or outboard of the fender is pushing it.

mach dan--what would you suggest that would split the difference? ie. something inbetween stock and where you're at above.
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