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09-09-2015, 12:44 AM | #1 |
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Square 264s :: 18x8.5 ET52 front & back, with 245/35R18 RE050A RFT tires all around
Hi folks,
Many on this forum have noted they’ve installed Square 264 (or 313) rims with success. But when I’ve searched around, there doesn’t seem to be a ton of photos/specifics – at least in comparison to Apex and VMR installations. So just for reference, here's my (no-rub) setup and experience… for what it’s worth… Suspension Setup
Rims, Tires and Spacers
Alignment
Ride Height
Clearance
Driving Impressions
There you have it. Karl. PS: And now a few pics (please excuse the dirt):
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Mods – Front 996-GT2 and Rear 997-Turbo Brake Ducts • 3rd (center) Coolant Radiator • 10mm/15mm Spacers Last edited by wjk_glynn; 07-04-2016 at 12:16 PM.. Reason: Add note about where the spacers came from... |
09-09-2015, 06:19 AM | #2 |
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looks like they fit way better than my setup:
Suspension Setup: Stock, free camber mod, M3 control arms Rims, Tires and Spacers 4x 18x8.5 ET52 rims 4x 255/35 R18 Dunlop Direzza ZII 4x 10mm hub-centric spacers Alignment: not known Clearance: awful until I rolled the fenders and shaved the bumper tab, after rolling there are no problems Driving Impressions (going from michelin PSS to Dunlop ZIIs as well) Steering feel is heavier No change in ride quality, a bit noisier terminal grip is very high |
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09-09-2015, 09:13 AM | #3 |
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Hero, do you think in your experience if you originally went with 235/40 front and 245/35 rear Zll's you would need fender work with your setup?
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09-09-2015, 11:28 AM | #4 |
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I run a 235/40 R 18 on mine and they are only for the track. Same wheels as yours.
Suspension: TC Kline D/A coilovers with Ground Control Camber plates and Swift Springs (400F/720R), M3 front control arms and sway bar, HP Autowerks adjustable end links, Eibach Rear sway bar, M3 rear trailing arms, Adjustable toe links. Tires: Federal 595 RS-R with a 15mm Spacer up front. My oversteer is literally non existent. And handles phenomenally on track. Camber up front is -2.8 with 0 caster and -2.0 rear. can't remember my toe.
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09-09-2015, 02:20 PM | #5 | |
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When I originally sized everything I was using PSS 245/35 tires |
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01-27-2016, 11:58 PM | #6 | |
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04-01-2016, 05:46 PM | #7 | |||
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Bringing up an older thread. I've been thinking about running a square set up and wasn't sure about running a set of wider rear rims in the front.
The BMWPS w/ M3 arms and Dinan camber plates is the exact suspension set up I've been considering so its great to hear it can be done! Seems the difference here is alignment and tires. Good to know it is possible. #1 No rub set up! Quote:
#2 Oh No! Quote:
Setup #3 also works but narrower tires which I would expect to grip less, but added M3 front say and other parts + non-runflats, all which seem to have relieved even more understeer. Which M3 front bar are you running - the E92 or E93 version? Does adding the stiffer rear bar make a big addition or did you change it all to this set up at one time? Quote:
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Last edited by Gangplank; 04-01-2016 at 05:57 PM.. |
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10-09-2016, 05:36 PM | #8 |
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Just an update on clearance after fitting different tires...
I recently switched from the Bridgestone RFTs to the following square setup (no other changes): 4x Hankook Ventus RS3 235/40 R18 Everything else is the same. However... with these new tires I now have some rubbing up front where the front passenger tire rubs against the back of the oil cooler vents at larger steering angles (e.g. maneuvering around parking lots). I think the reason is that these new 235/40 tires are taller than the previous 245/35 RFTs, and so they're just that bit closer to the vent. Because the rubbing doesn't happen with regular driving, track days, etc. (just at large steering angles), it's acceptable to me. But just wanted to share for others with square 264 setups... Karl.
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10-10-2016, 02:56 PM | #9 | |
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This was literally my 4th suspension setup and had just switched out from a AST 4150 single adjustable with Swift springs. Before then, I had H&R super sports on stock struts and then a Eibach Pro Kit with dampers and springs. Then I did the sub frame bushings, then the M3 control arms, then the AST with Vorshlag plates and now the TC Klines with Vorshlag plates.
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10-10-2016, 07:52 PM | #10 |
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With the 8.5 261m wheels it appears to run on the strut. Very close with the 10mm spacer. Not sure how to get around this problem - I think 12mm spacers would not work on the fender.
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10-11-2016, 01:07 PM | #11 | |
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I plan on trying the 12.5 for next track season here. That is a shot of my car coming into Brunnchen (Nurburgring).
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10-12-2016, 11:37 AM | #12 |
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The 10mm ones are rubbing. I did order the 12mm ones to try. Sounds like I need to get the m3 control arms. I really want to get this to work, thanks! |
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06-09-2017, 02:04 PM | #13 |
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Anyone know if I can run square 8.5" (rear) 313s on the whole car? It probably would help a bit with tire longevity (assuming I don't have to go crazy with camber or what not?) and it'd cut down on the understeer. I'm just curious as to what it would take to do and what compromises there are with doing that.
Are there any issues with running 8.5" in the front besides possible rubbing? Would it affect handling or how the suspension performs overall? I was trying to remember my physics classes but I thought I'd hear from anyone who knows more about this topic than me. I'm on a 135is, if that makes any significant difference. |
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06-13-2017, 04:07 PM | #14 | |
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Everything was kosher with 245 Michelin super sports with just the strut tower camber mod. When I switched to 255 dunlops I would rub badly until I did some fender rolling/pulling. |
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06-13-2017, 06:53 PM | #15 | |
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06-15-2017, 10:17 AM | #16 | |
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I think the dunlops are also just wider in general because of a square shoulder profile. |
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05-08-2018, 07:23 PM | #17 |
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Resurrecting this thread. I finally got around to order the bmw performance suspension kit. I am still trying to figure out how to get the square setup in the front. Mine rubbed with the stock suspension and 10mm spacers.
Does the OP or anyone else no if I still want to do this (square setup) should I add the camber plates and m3 control arms? It did not work with the stock suspension and 10mm spacer. Since it will already be apart I might as well add it then so I can do the square tire setup. |
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05-08-2018, 07:55 PM | #18 | |
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With my setup (fully detailed in the top post), it was extremely close, but no rub (and no rolled fenders). See the section "Clearance" above for more info. Then later (post #8), I moved from a 245/35 R18 to a 235/40 R18 tire, and the fronts rubbed the back of the oil cooler vents (tires were that bit taller). Karl.
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05-08-2018, 08:18 PM | #19 | |
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Did you get the oem bmw control arms or the trw ones? |
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05-09-2018, 07:09 AM | #20 |
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Stock – 997.2 C2S Coupé • Carrara White / Cocoa • Adaptive Sports Seats • PDK w/SC • PSE
Mods – Front 996-GT2 and Rear 997-Turbo Brake Ducts • 3rd (center) Coolant Radiator • 10mm/15mm Spacers |
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06-24-2020, 03:40 PM | #21 |
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reviving thread from the dead... I just got a square setup pf 261M style wheels and doing the same I was thinking 255/35 square setup... look like 10mm is the magic number for spacing the wheel... any other tips?
Car is on stock suspension so might add a little bit of camber with eh free trick camber mod... |
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06-24-2020, 03:58 PM | #22 | |
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