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      04-23-2015, 10:35 AM   #23
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Shoulder wear is just part of owning a 1 series. The camber curve is just that way. Go with the 255
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      04-23-2015, 11:13 AM   #24
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[QUOTE=1forI;17792075]
Quote:
Originally Posted by Ginger_Extract
Even tho you experienced poor shoulder wear with 255 up front due to the width and soft side wall on the rs3?

I don't mind if they have a slightly shorter shelf life, I just want to make sure I'm not compromising performance.
If you're going to run a true square setup (aka same offset and everything), I'd just rotate front to rear every time you take it out to wear the front/back at the same rate.
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      04-23-2015, 11:39 AM   #25
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[QUOTE=Kgolf31;17793827]
Quote:
Originally Posted by 1forI View Post

If you're going to run a true square setup (aka same offset and everything), I'd just rotate front to rear every time you take it out to wear the front/back at the same rate.
Yes, rotating front to back was definitely part of the plan once square.

My offsets will effectively be 33 front / 45 rear.

Would it be worth it to put a 12mm spacer in back to match the offsets? Will these 11mms really make much of a difference?

First square track set up so not I'm familiar with how much impact a small change like this would have.
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      04-23-2015, 12:34 PM   #26
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[QUOTE=1forI;17792075]
Quote:
Originally Posted by Ginger_Extract
Even tho you experienced poor shoulder wear with 255 up front due to the width and soft side wall on the rs3?

I don't mind if they have a slightly shorter shelf life, I just want to make sure I'm not compromising performance.
It's an inherent trait of the RS3. Don't want shoulder wear, either stretch 'em, or pick a different tire. I'd rather have a 255/35 that actually fits, versus a 245/40 that won't fit and will exacerbate the shoulder issue in the first place. The 35 sidewall will keep the tire more taut than a the taller 245/40.
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      04-23-2015, 01:39 PM   #27
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[QUOTE=Kgolf31;17793827]
Quote:
Originally Posted by 1forI View Post

If you're going to run a true square setup (aka same offset and everything), I'd just rotate front to rear every time you take it out to wear the front/back at the same rate.
Sorry. Miscalculation. My offsets will be 40 front and 45 rear. I would only need a 5mm spacer in back to match offsets.

That doesn't seem worth it. I rather be sitting on the oem hub, but would like to hear if there is a worthy counter argument to this. Thanks!
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      04-23-2015, 01:40 PM   #28
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[QUOTE=Ginger_Extract;17794309]
Quote:
Originally Posted by 1forI View Post
It's an inherent trait of the RS3. Don't want shoulder wear, either stretch 'em, or pick a different tire. I'd rather have a 255/35 that actually fits, versus a 245/40 that won't fit and will exacerbate the shoulder issue in the first place. The 35 sidewall will keep the tire more taut than a the taller 245/40.
Gotcha. I just realized that your "shoulder ware" comments was related to the 40 sidewall.
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      04-23-2015, 03:09 PM   #29
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[QUOTE=1forI]
Quote:
Originally Posted by Kgolf31 View Post
Quote:
Originally Posted by 1forI View Post

If you're going to run a true square setup (aka same offset and everything), I'd just rotate front to rear every time you take it out to wear the front/back at the same rate.
Sorry. Miscalculation. My offsets will be 40 front and 45 rear. I would only need a 5mm spacer in back to match offsets.

That doesn't seem worth it. I rather be sitting on the oem hub, but would like to hear if there is a worthy counter argument to this. Thanks!
Nope. Run 45 in the rear
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      04-23-2015, 03:28 PM   #30
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Just had a long conversation with apex and they say even with 2.5* camber and a fender roll it's going to be very difficult to fit a 255/35/18 RS3 up front.

I know that people are running this setup, but want to be sure I'm not missing anything beyond camber and fender roll.

I know I'm backtracking this conversation but just want to be sure before I move ahead.
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Last edited by 1forI; 04-23-2015 at 03:45 PM..
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      04-23-2015, 04:47 PM   #31
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No one has to answer that. I know that it will fit.

I've decided on square 255/35/18 RS3

I'll let everyone now how they fit/ride once I get them on.

...after that, I'll consider a few 9" wide wheel options to better support the 255.
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      04-24-2015, 08:34 AM   #32
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Quote:
Originally Posted by 1forI View Post
No one has to answer that. I know that it will fit.

I've decided on square 255/35/18 RS3

I'll let everyone now how they fit/ride once I get them on.

...after that, I'll consider a few 9" wide wheel options to better support the 255.
Offset 40 should work well, but you will need at least -1.0 camber to clear the fender. -2.5 would give you plenty of room all around (about 9mm fender clearance.)
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      04-24-2015, 08:52 AM   #33
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Quote:
Originally Posted by The Nebulizer View Post
Offset 40 should work well, but you will need at least -1.0 camber to clear the fender. -2.5 would give you plenty of room all around (about 9mm fender clearance.)
Agreed.

My front 255/35R18's tires/18x8.5 ET52 style 261 wheels have an "effective" offset of 42 (ET52 wheels with 10mm spacers). I have -3.2* of camber in front, and lowered suspension (Swift Spec-R springs and Bilstein B8 dampers). I was on stock linear springs and dampers prior to this...

With my new B8's, I have a little bit of strut clearance left (2-3mm), and now considering replacing my 10mm spacers with 8mm spacers. Tire is a little more buried in the fender. Switching the spacers from 10 to 8mm would equate to an ET44 offset (ET52 - 8). This switch would remove my concern with rubbing under hard compression, when Im lapping at the track, going over a curb, etc.

My fenders are not pulled or rolled, and with stock suspension, I had rubbing on front passenger side under hard compression at the track with my square 255/35R18 setup.

I will find out if I rub with my new setup and new Dunlop Direzza Zii StarSpec tires at my first lapping event of the 2015 season next week.
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Last edited by dcaron9999; 04-24-2015 at 12:28 PM..
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      04-24-2015, 06:31 PM   #34
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Quote:
Originally Posted by dcaron9999 View Post
...now considering replacing my 10mm spacers with 8mm spacers...
Can you get hub centric 8mm spacers?

I thought 10mm was the lowest limit on the market.

Karl.
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      04-24-2015, 06:53 PM   #35
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Quote:
Originally Posted by wjk_glynn
Quote:
Originally Posted by dcaron9999 View Post
...now considering replacing my 10mm spacers with 8mm spacers...
Can you get hub centric 8mm spacers?

I thought 10mm was the lowest limit on the market.

Karl.
You are correct on this. 10mm is really min. They probably make a 8mm that is hubcentric but I wouldn't run them
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      04-26-2015, 08:29 PM   #36
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Quote:
Originally Posted by Kgolf31 View Post
You are correct on this. 10mm is really min. They probably make a 8mm that is hubcentric but I wouldn't run them
I found a place in Canada that produces them to you spec, and he can make me 7 or 8mm hubcentric spacers out of 6061 t6 aluminium like the Turner or the BMS ones.

email address of the vendor is centerbore AT hotmail DOT com
Here is his ad : http://www.kijiji.ca/v-other-auto-pa...ors/1056290058

Turner spacers:
http://www.turnermotorsport.com/imag...H9905013_2.jpg

BMS spacers:
http://n54tuning.com/index.php?_a=viewProd&productId=62
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      04-27-2015, 09:21 AM   #37
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Quote:
Originally Posted by dcaron9999 View Post
I found a place in Canada that produces them to you spec, and he can make me 7 or 8mm hubcentric spacers out of 6061 t6 aluminium like the Turner or the BMS ones.

email address of the vendor is centerbore AT hotmail DOT com
Here is his ad : http://www.kijiji.ca/v-other-auto-pa...ors/1056290058

Turner spacers:
http://www.turnermotorsport.com/imag...H9905013_2.jpg

BMS spacers:
http://n54tuning.com/index.php?_a=viewProd&productId=62
I believe the issue with 8mm is they are not hubcentric (don't have the hub lip) - Turner has a nice write up on this. Turner made a separate hub extender. Without this extender, an 8mm spacer has nothing to "center" the wheel. You will get different opinions on if this is absolutely necessary, but I'd err on the cautious side and make sure you have it. 10mm is large enough to allow the spacer to include the hub extender integral to the spacer.
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      04-27-2015, 10:26 AM   #38
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Quote:
Originally Posted by Ginger_Extract View Post
A friend of mine delaminated his MPSS after one AutoX, and one D.E. on his Audi. That vehicle has the same McStrut setup, same tire size and weight as my 1'er. He never learned his lesson and wonders why he buys tires 4-5x/year despite my insistence on a better tire.

It happens to pretty much anything that's not super light, or has struts/lack of camber, etc. Other cars can make them work okay, but they REALLY aren't track tires.
Quote:
Originally Posted by Ginger_Extract View Post
MPSS, great on the street, shit at the track. Especially on a McStrut car, they'll fall apart.

Any of the current hot street tires will be fine on track, RS3, ZII, AD08R, etc. I will say that if you go to the track and look at what people are actually using for street tires, it's gonna be the RS3, AD08R.
I've seen the MPSS work very well at the track actually. In fact, while in the Porsche intermediate group I witnessed a completely stock first gen Porsche Boxster on MPSS tires pass a 997 Turbo on R-comps this past weekend at Summit Point. Your statement of how they work on a lighter car seems accurate.
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      04-27-2015, 11:45 PM   #39
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Quote:
Originally Posted by The Nebulizer View Post
...Turner has a nice write up on this...
http://www.turnermotorsport.com/t-wh...yclopedia.aspx
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      04-28-2015, 08:17 AM   #40
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Quote:
Originally Posted by wjk_glynn View Post
I really like the idea with the Wheel Pin and Washers to determine exact spacer thickness. That is simply genious!
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      04-28-2015, 10:13 AM   #41
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245s will be more than enough for an 8.5j given that it's a high performance tire. If I were you I would lean towards neovas ad08r or ao48s if possible. Toyo r1r and r888s aren't a bad choice either.
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      04-28-2015, 10:37 AM   #42
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Quote:
Originally Posted by Kizzu View Post
245s will be more than enough for an 8.5j given that it's a high performance tire. If I were you I would lean towards neovas ad08r or ao48s if possible. Toyo r1r and r888s aren't a bad choice either.
R1Rs are junk. Absolute Garbage.
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      05-03-2015, 09:17 PM   #43
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Quote:
Originally Posted by dcaron9999
Quote:
Originally Posted by The Nebulizer View Post
Offset 40 should work well, but you will need at least -1.0 camber to clear the fender. -2.5 would give you plenty of room all around (about 9mm fender clearance.)
Agreed.

My front 255/35R18's tires/18x8.5 ET52 style 261 wheels have an "effective" offset of 42 (ET52 wheels with 10mm spacers). I have -3.2* of camber in front, and lowered suspension (Swift Spec-R springs and Bilstein B8 dampers). I was on stock linear springs and dampers prior to this...

With my new B8's, I have a little bit of strut clearance left (2-3mm), and now considering replacing my 10mm spacers with 8mm spacers. Tire is a little more buried in the fender. Switching the spacers from 10 to 8mm would equate to an ET44 offset (ET52 - 8). This switch would remove my concern with rubbing under hard compression, when Im lapping at the track, going over a curb, etc.

My fenders are not pulled or rolled, and with stock suspension, I had rubbing on front passenger side under hard compression at the track with my square 255/35R18 setup.

I will find out if I rub with my new setup and new Dunlop Direzza Zii StarSpec tires at my first lapping event of the 2015 season next week.
Test fitted the ZII* on 8.5" wheels and it's so close to fitting but under compression is slightly rubbing on the bumper, not the fender.

It looks like I have about 7 or 8 mms clearance from strut to wheel...maybe I could get away an 8mm spacer instead of my 12mm?

ZII Star Specs
8.5" wheels et52
12mm spacers
(Effective et40)
2.5* camber

I think my only two options are to test an 8mm spacer or get adjustable camber plates to see it 3* gets me there...looks like your 3.2* camber is making the difference since all our other specs are almost identical.

Time is really tight for me because I have a track event this Saturday.

Any thoughts/advice? Are there options I didn't mention above to gain a little more bumper clearance?
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Last edited by 1forI; 05-03-2015 at 09:53 PM..
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