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Old 02-05-2011, 08:50 PM   #1801
littlewhitewagon
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Quick update, 18x10+40 volk te37sl with stock Dunlop 245/40r18 easily fits the grb and gvb with the front camber adjustments at max neg and rolled rear fenders. This is with stock struts, yes it means if you have lowering springs, you are fine. I imagine 265/35r18 street tires will also fit easily.
If you go to coilovers, the rear is no problem since the damper assembly is far away from the wheel. The fronts is what gets difficult. If you have camber plates, you need to adjust the camber bolts to positive in order to move the wheel away from the coilover spring and use the plates to get negative camber. If you do this, 265 or 275 will be an easy fit.
If you don't have camber plates, you will need a coilover that keeps the spring above the tire line, or you need to adjust your ride height so the spring perch is does not hit the tire. You will not be able to go much wider than 255 this way.
I have kw v3 right now and the ride height is set to about 13.75 front and rear. I'll update with pics later when I have time. This fit uses all of the space inside and out. Might be the optimal "widest" fit for this chassis with reasonable alignment settings. I am at -2deg camber front and rear with 0 toe.
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Old 02-05-2011, 09:02 PM   #1802
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i was thinkin about the bridgestone potenza. not too familular on actual sizes but from what i have been seein it looks like it would be 245/35/18 or 255/35/18. i am new to all of this so thanks again to all who can help!
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Old 02-05-2011, 09:13 PM   #1803
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Quote:
Originally Posted by Boosted ej25 View Post
Hey thanks I appreciate it! What offset do u think I would be better off with? I mean I'm gonna eventually lower it when I get more funds but when I do lower it, you think I'll have to do any fender work?
most people are ok running a 235/40/18 on an 8.5" wheel. The 18x8.5 +40mm is a good match and wont require fender work you may need some extra rear camber but it'd within spec still (-1.7) (assuming you run a street tire).

Quote:
Originally Posted by littlewhitewagon View Post
Might be worth it to include actual tire information since some tires are wider than others, ie r comps.
True, Disclaimer: if you want to run R-comps please say so prior to asking for help. Any suggestion doesn't apply to the use of R-Comps or Slicks
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Old 02-05-2011, 09:14 PM   #1804
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Quote:
Originally Posted by Boosted ej25 View Post
i was thinkin about the bridgestone potenza. not too familular on actual sizes but from what i have been seein it looks like it would be 245/35/18 or 255/35/18. i am new to all of this so thanks again to all who can help!
there are alot of potenzas. Personally on stock suspension I'd opt for a 235/40/18 RE11 on the 18x8.5 +40mm
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Old 02-05-2011, 11:42 PM   #1805
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So if I went with that set up and may need some extra rear camber, how do u go about getting extra rear camber?
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Old 02-06-2011, 12:16 AM   #1806
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Originally Posted by Boosted ej25 View Post
So if I went with that set up and may need some extra rear camber, how do u go about getting extra rear camber?
camber bolts or plates.
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Old 02-06-2011, 12:39 AM   #1807
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Quote:
Originally Posted by Boosted ej25 View Post
So if I went with that set up and may need some extra rear camber, how do u go about getting extra rear camber?
it's most likely just enough to even it out left to right. One side of the GD always has less camber factory for some reason.
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Old 02-06-2011, 01:27 AM   #1808
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Alrite. Is that even a for sure thing with camber plates with that set up? My car is stock.
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Old 02-06-2011, 01:37 AM   #1809
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you can't run rear camber plates on the stock springs/struts of the 04-07 WRX/WRX STi
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Old 02-06-2011, 04:34 AM   #1810
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I'm am new to this so sorry if I don't quite understand everything. So if I get the ce28n 18x8.5 40mm offset on 235/40/18 re11's on stock suspension, am I gonna have to do any suspension work to have them fit safely?
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Old 02-06-2011, 12:49 PM   #1811
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Quote:
Originally Posted by Boosted ej25 View Post
I'm am new to this so sorry if I don't quite understand everything. So if I get the ce28n 18x8.5 40mm offset on 235/40/18 re11's on stock suspension, am I gonna have to do any suspension work to have them fit safely?
You should be fine. It's a pretty conservative setup.
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Old 02-06-2011, 02:55 PM   #1812
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For sure! Thanks guys! U have been very helpful and now I can order my wheels! I really do appreciate it!
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Old 02-06-2011, 06:41 PM   #1813
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Need to put wider meats. Used the stock tire for test fit and adjustments.

Lip and concave detail.
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Old 02-13-2011, 11:25 AM   #1814
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Default Road racers? Do you know if this is a good combo?

In my 2011 STI sedan, I'm going to do Track Days to start with and I'm looking at this setup:
Enkei 17 x 9.5 w. 38mm offset (weights 16.5 lbs.) These seem to be a good price and they're light! I can't seem to come up with a comparable wheel that has more offset.:

(I used this offset calculator. It says I will be going out an additional 30 mm, but it doesn't figure in the tire.
I plan on running Toyo R888 275/40/17 tires.
I'll run camber plates and coil-overs. I should be at 2 degrees or more of negative camber.
I may have to roll the fenders based on this. It looks tight. Does anyone know for sure? Can I just trim off some of the inner lip or roll it just a little?
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Old 02-13-2011, 12:25 PM   #1815
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You will need to roll the rear fenders. You will also need a method of rear camber control.

Do not trim the metal, roll it.
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Old 02-13-2011, 01:26 PM   #1816
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Buy something with more offset Scargod, even at the cost of 0.5" of width (275/40R17 works on 17x9) or a few extra pounds. +38 will affect your handling considerably, especially on that wide a tire. Also, more offset will make your clearance problems much easier.
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Old 02-13-2011, 03:15 PM   #1817
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Man, I've been searching and can't find out if theses wheels will fit an '05 STi. And by fit, I mean no spacers and clears Brembos. Not worried about fender clearance. Anybody have any insight? Thanks

Advan RCII's 17x9.5 +35
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Old 02-13-2011, 04:49 PM   #1818
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Quote:
Originally Posted by mosc View Post
Buy something with more offset Scargod, even at the cost of 0.5" of width (275/40R17 works on 17x9) or a few extra pounds. +38 will affect your handling considerably, especially on that wide a tire. Also, more offset will make your clearance problems much easier.
Just as a note, the 17x9+45 5x114.3 enkei rpf-1 does not clear brembos. I have these wheels on my miata and test fitted just for fun.
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Old 02-13-2011, 05:55 PM   #1819
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Quote:
Originally Posted by Scargod View Post
In my 2011 STI sedan, I'm going to do Track Days to start with and I'm looking at this setup:
Enkei 17 x 9.5 w. 38mm offset (weights 16.5 lbs.) These seem to be a good price and they're light! I can't seem to come up with a comparable wheel that has more offset.:
the 17x9.5 +38mm RPF1 requires a 5mm spacer to clear the brembos. You'll also want to go with some ARP wheel studs up front.

The 17x10 +38mm clears but it requires some more work and are harder to find.
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Old 02-13-2011, 10:44 PM   #1820
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And be prepared to buy these:
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Old 02-14-2011, 06:48 AM   #1821
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Default What's a big combo that works on GR's?

Quote:
Originally Posted by WRX8XB View Post
the 17x9.5 +38mm RPF1 requires a 5mm spacer to clear the brembos. You'll also want to go with some ARP wheel studs up front.

The 17x10 +38mm clears but it requires some more work and are harder to find.
Spacers are not something I want to do and on top of the 38mm offset, spacers would just make fender interference worse! I will have to go back to the drawing board. What light 17x9.5 rim will fit? I am willing to move away from "cheap"... I think I really want to run the 275 Toyos. I'll have a Pro-tuned Stage 2 car.

I don't understand the comment "+38 will affect your handling considerably, especially on that wide a tire.." Are you referring to the car's stance becoming wider or "squarer"?
littlewhitewagon: I am planning on installing BC Racing “BR series” Coilovers with camber plates. The arm is for caster, isn't it?
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Old 02-14-2011, 09:36 AM   #1822
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Have you considered 18" fitments? I ask because there are rpf-1 in 18" sizes that will fit over the brembos. Also, the key question is budget. Everyones idea of affordable is different.

The blue arms are rear lower control arms from cusco. You need these for rear camber control. There are other brands out there if you don't want to spend as much. Camber plates are only for front camber adjustment.
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Old 02-14-2011, 03:18 PM   #1823
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Originally Posted by Scargod View Post
Spacers are not something I want to do and on top of the 38mm offset, spacers would just make fender interference worse! I will have to go back to the drawing board. What light 17x9.5 rim will fit? I am willing to move away from "cheap"... I think I really want to run the 275 Toyos. I'll have a Pro-tuned Stage 2 car.

I don't understand the comment "+38 will affect your handling considerably, especially on that wide a tire.." Are you referring to the car's stance becoming wider or "squarer"?
littlewhitewagon: I am planning on installing BC Racing “BR series” Coilovers with camber plates. The arm is for caster, isn't it?
The reason he's saying the offset is an issue, is that by lowering the offset, you are essentially decreasing your overall turning radius which is compounded by the fact you want to run very wide tires.

first off, why do you want to daily drive a 275? Theres no problem with running 255 or 265's on these wheels, and might actually perform a smidge better.

Why are you so set on a 17x9.5"? Why don't you open up to other 17x9's or even 17x10's (saleen reps?). There are several readily available wheels available in 17x9 that will clear brembos, and will allow you to run pretty much the same tire sizes. If you don't need 18's to clear larger brakes, the 17's are the better performance option.

Camber control on the GR chassis is still confusing to me, but I believe littlewhitewagon is correct. On the GR chassis, there is no option for rear camber plates. Meaning you need to get bolts, or for more extreme adjustment - new LCA's.
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Old 02-14-2011, 05:02 PM   #1824
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Default You missed my post #1814:they're for racing only

I want these for track days or HPDE's. They will be dedicated "racing wheels".
Thus I am trying for as big a tire as I can get without pulling the fenders out.
Perhaps this is wrong thinking and I do't want bigger that 255's. In that case I am going to be fine with 17x9's and 255x40's.
A Scooby racer told me to get 17" rims because they were lighter and more plentiful and tires were cheaper and more plentiful. $300 per rim is about when my stomach starts to churn.

I could be wrong, but I don't think turning radius will be a concern for the track.

Also, I'm looking at a BC Racing BR series Coilover Kit. One of the options is an adjustable rear camber plate. I'm thinking they are significantly more money than camber bolts, but they won't cause any coilover to tire issues.

I appreciate all the input. This car, and 4WD, is new to me and I have been out of racing for over thirty years!
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Old 02-14-2011, 10:04 PM   #1825
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There are plenty of 17x9" wheels that clear brembos and have offsets in the +48 or higher range! Seriously! SSR made a nice set (Spec C?) in +50, there's the 6ULR which is +48, and several volk TE-37 models if you're spendy. Voala! 275 width with no fender fuss.

And all of those are <20lbs as well fyi. RPF-1's aren't the only light wheel on the market.
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