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Old 12-08-2011, 01:39 PM   #401
builthatch
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Quote:
Originally Posted by sc00by4life View Post
There will be significant handling trade offs when you use any spacer, period. The larger they are, the more pronounced it will be.

Rolling fenders is either very easy, or very cheap. There is little to no "risk" with rolling, and will be virtually indistinguishable from un rolled fenders.

Tire wear has far more to do with tire pressure and toe than camber, and could be set up more ideal for performance if that's what you desire.

Either way, have fun!
i have had 15mm spacers on a few vehicles and it was negligible OR completely invisible, though none were awd. i am particular about alignment and suspension setup, so i don't agree with a blanket statement regarding spacers causing significant handing trade offs. my experience says otherwise. but, i will definitely report back if i detect anything.

rolling fenders might, for some reason, be easy on this vehicle as opposed to my previous mazda, but i had it done using all of the common techniques...eastwood roller, heat gun, gradual angles, utmost attention, etc...and the paint cracked, which as i said, caused more pain than i care to deal with. i can't imagine modern bean-counter influenced paint (thin) in that area on a subaru being any more resilient that a mazda of the same generation, but regardless - for me, it's not worth it. even if it worked out...i have to ask myself, why did i roll? if 15mm works and clears, i don't need to touch the fenders. i don't need it to be flush, but i don't want the appearance to be as sunken in as it is from the factory.

tire wear has a lot to do with a lot of things, the two things you mention are big factors, but camber is one of them. adding more negative camber from stock settings to clear fenders is not something i'm interested in, but adding more negative camber, WITHIN REASON, to improve handling...that sounds great as long as the tire wear tradeoff is worth it. but regardless, i always start at OE settings and go from there based on driving feel when i'm setting up my cars, so the fitment has to clear for me to start.

again, i thank you for taking the time to consider my setup.
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Old 12-08-2011, 01:43 PM   #402
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In most cases, "camber wear" only occurs at extreme degrees (3+) depending on how you drive. 1-2 degrees to clear fenders will not cause abnormal wear. 99% of the time, uneven wear on the inside is due to too little pressure, or incorrect toe settings.

Yes, rolling is very easy on these cars! Plenty of heat and go slow and you won't have any issues.

As far as handling, I have a feeling you don't really know what you were experiencing. I was merely pointing out that spacers aren't for performance, but aesthetics.

Merely trying to clear up some misconceptions. 15mm should look awesome! Make sure to post pics when you get them installed.

Get arp's and play around with slip on spacers til you find something that works for you .

Last edited by sc00by4life; 12-08-2011 at 02:39 PM.
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Old 12-18-2011, 03:59 PM   #403
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Are the stock 235/45/17 tires a bad idea on a 9" wheel for 6 months or so, or would it just look ridiculous and be dangerous? I don't want to keep switching between all seasons and summer tires on a single set of wheels, but the stock tires just refuse to wear out.

Last edited by arf80; 12-18-2011 at 04:26 PM.
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Old 12-19-2011, 12:56 AM   #404
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I am looking at getting some g-forces 18x9 and in the step of deciding what tires to get. I know 235/40/18 will fit on these rims with a minimal stretch... I am looking at some continental extremecontact DW. There are 2 different extremecontact DW in that size. according to specs, one has a section width of 9 and the other has a section width of 9.5. All other 235/40/18 tires I looked at has a section width of 9.5, sooo will the one with a section width of 9" fit on the 18x9 rims? Thanks
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Old 12-20-2011, 10:26 AM   #405
Mach V Dan
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Quote:
Originally Posted by arf80 View Post
Are the stock 235/45/17 tires a bad idea on a 9" wheel for 6 months or so, or would it just look ridiculous and be dangerous?
It'll look pretty stretched, but I wouldn't say it's dangerous.

Quote:
Originally Posted by JTL88 View Post
I know 235/40/18 will fit on these rims with a minimal stretch...
Why are you looking at such a narrow tire? The guy above you already has his tires, but you can choose from anything. Why not at least get a 245? A 255 would be an even better fit on a 9" wide wheel.

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Old 12-21-2011, 09:09 AM   #406
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Would 18x9.5 +38 and a 245/40 lowered on coils require a fender roll?
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Old 12-21-2011, 10:26 AM   #407
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I'm running 17x9 +42 Rota Grids with the stock tires (235/45). What is the correct tire size is should be running. Also have stock suspension.

Thanks
Romeu
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Old 12-21-2011, 11:37 AM   #408
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Quote:
Originally Posted by RAzevedo330
I'm running 17x9 +42 Rota Grids with the stock tires (235/45). What is the correct tire size is should be running. Also have stock suspension.

Thanks
Romeu
Your answer is the second post up from yours.
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Old 12-25-2011, 11:57 AM   #409
Mach V Dan
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Quote:
Originally Posted by WantAvant View Post
Would 18x9.5 +38 and a 245/40 lowered on coils require a fender roll?
Probably not, but it depends how far it's going to be lowered. "Lowered on coils" could mean anything from 1" lower than stock to 3.5" lower...

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Old 12-26-2011, 01:16 PM   #410
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Quote:
Originally Posted by WantAvant View Post
Would 18x9.5 +38 and a 245/40 lowered on coils require a fender roll?

I have 245/40s on a 18x9.5 +40 and i needed a roll in the rear. The rear lips are kinda big.

Picture for reference ...

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Old 12-26-2011, 01:56 PM   #411
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One more guys, sorry I am just trying to get the perfect fit without having to roll fenders. How about 18x9+40 with 245/40? I will probably lower between 1.5 to 2 in on coilovers. If I have to roll with that setup then I will probably just go with a 18x8.5 +44 or +48 with a 245/40.
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Old 12-30-2011, 09:37 AM   #412
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From his answer to my question you can do a 255/40 18 with a 18x8.5 +45 wheel.

Quote:
Originally Posted by WantAvant View Post
One more guys, sorry I am just trying to get the perfect fit without having to roll fenders. How about 18x9+40 with 245/40? I will probably lower between 1.5 to 2 in on coilovers. If I have to roll with that setup then I will probably just go with a 18x8.5 +44 or +48 with a 245/40.
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Old 12-30-2011, 10:55 AM   #413
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18x8.5 et35 with a 245/35/18 or...

18x9.5 et40 with a 255/35/18.

Would either one of these fit without rubbing on a 2011 Stock suspension WRX.

I wish I could get the 8.5 with the 40 offset but that isn't an option.
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Old 12-31-2011, 12:19 AM   #414
Mach V Dan
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Originally Posted by dvrmstrng View Post
18x8.5 et35 with a 245/35/18 or...

18x9.5 et40 with a 255/35/18.

Would either one of these fit without rubbing on a 2011 Stock suspension WRX.

I wish I could get the 8.5 with the 40 offset but that isn't an option.
It's hard to answer this kind of question with certainty. Without rubbing when? At full suspension compression? With a car load of fat people? At the autocross? Different tires have different shoulder profiles, so even with the same size tire, you may have different results.

My best guess is that either of these will not rub under normal driving, and may rub in the back under full compression.

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Old 12-31-2011, 07:20 AM   #415
Lrn2Corner
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Right now I am looking at wheel options for my 2012 WRX and to be honest I want a light wheel tire combo with the proper offset.

I am not going for hellaflush but I do want a perfect flush fit that wont require fender rolling. The car wont be slammed or anything but lowered a little. I will be using Tien super street adjustable edfc coil overs with 10kg racing springs. Negative camber will be minimal and I will be running the whiteline front center adjustment kit to keep things properly aligned.

What would fit this bill best? 17"X8.5"/17"X9"/18"X9" or 18"X9.5" wheels. What tire size (not stretched).

What light weight wheels are available other than Kosei K1s and Enkei RPF1s that are close to or within a couple LBS of them?

How much do a typical set of Rotas weigh? Looking at the selection on wheeldude.

Last edited by Lrn2Corner; 12-31-2011 at 08:10 AM.
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Old 12-31-2011, 09:21 AM   #416
Mach V Dan
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Originally Posted by Lrn2Corner View Post
Right now I am looking at wheel options for my 2012 WRX and to be honest I want a light wheel tire combo with the proper offset.
Hmm. Maybe the Mach V Awesome?







17.8 pounds, 17x9 +42.



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Old 12-31-2011, 10:10 AM   #417
Lrn2Corner
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^ Perfect. exactly what i was thinking. now just got to wait till after tax season
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Old 12-31-2011, 10:57 AM   #418
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^^^ They do look nice. I will be shopping for my summer set in a month or 2 and I am having a hard time deciding on a strong, durable and somewhat affordable wheel (<$1800 for a set). I don't like rotas mainly because of the weight. Any plans to carry 18" option?
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Old 12-31-2011, 11:49 AM   #419
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Some wheels require 5mm spacers to clear the front brembos, has anyone ever ran them on the rears as well to even the ride out ?
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Old 12-31-2011, 11:53 AM   #420
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Quote:
Originally Posted by Mach V Dan
Hmm. Maybe the Mach V Awesome?

17.8 pounds, 17x9 +42.

--Dan
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Silly Dan! He said proper offset! That would make +53 the only possible choice!

/sarcasm
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Old 12-31-2011, 03:19 PM   #421
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with the 17x9 +42 would the wheel sit out almost 1in. more than stock or does the 11mm difference in offset go in and make the wheel sit close to stock?
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Old 12-31-2011, 03:23 PM   #422
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with the 17x9 +42 would the wheel sit out almost 1in. more than stock or does the 11mm difference in offset go in and make the wheel sit close to stock?
11mm is closer to 1/2in. And that's going to be 1/2in farther out from the vehicle's centerline.
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Old 12-31-2011, 03:52 PM   #423
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Originally Posted by randysubie View Post
with the 17x9 +42 would the wheel sit out almost 1in. more than stock or does the 11mm difference in offset go in and make the wheel sit close to stock?
Quote:
Originally Posted by BullyWRX View Post
11mm is closer to 1/2in. And that's going to be 1/2in farther out from the vehicle's centerline.

11mm difference in offset, but supplemented by 1" wider wheel...there are two numbers you need to keep in mind. Offset AND wheel width. The variation from the centerline of the wheel is going to be at a different point on a wider/narrower wheel. Either one of those numbers (width OR offset) by themselves mean nothing.

To put it simply, if you think of it in terms of where the face of the wheel sits...the difference between stock wheel and 17x9 +42 is actually 24mm.
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Old 12-31-2011, 04:22 PM   #424
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Quote:
Originally Posted by sc00by4life

11mm difference in offset, but supplemented by 1" wider wheel...there are two numbers you need to keep in mind. Offset AND wheel width. The variation from the centerline of the wheel is going to be at a different point on a wider/narrower wheel. Either one of those numbers (width OR offset) by themselves mean nothing.

To put it simply, if you think of it in terms of where the face of the wheel sits...the difference between stock wheel and 17x9 +42 is actually 24mm.
D'oh! Forgot about that bro!
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Old 12-31-2011, 05:42 PM   #425
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So in the end that means what in terms of fitment in regards to no sticking past my fenders? What offset would be perfect for a 17X9 wheel?
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