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[lukester]

Hi guys,

I'm looking for a couple of ideas on a 11x18 square setup.
Anybody running it?

Thx a lot and greetings from Germany.
# Luke

[TrAcK TRaP]

I know many guys running 18x10 or 19x10 square but never saw anyone running that wide. But would be interesting so do it and let us know how it feels For me 11 is too big for the front..

[macdude357]

That would be highly dependent on your suspension setup and the tire.

I run 10.5x18et25 square on JRZ RS2's with -3.2 degrees of camber, 3mm spacers and some tires fit and some don't. 275 NT01 fits. 275 Maxxis RC1 won't (rubs the spring). Even the ones that "fit" still rub the fender liner at full lock.

With an 11" rim, I assume you'd want to run an even wider tire like a 285 or 295 which would take up even more room.

[roastbeef]

Originally Posted by macdude357

That would be highly dependent on your suspension setup and the tire.

I run 10.5x18et25 square on JRZ RS2's with -3.2 degrees of camber, 3mm spacers and some tires fit and some don't. 275 NT01 fits. 275 Maxxis RC1 won't (rubs the spring). Even the ones that "fit" still rub the fender liner at full lock.

With an 11" rim, I assume you'd want to run an even wider tire like a 285 or 295 which would take up even more room.

when did you get coilovers?

[lukester]

Originally Posted by macdude357

That would be highly dependent on your suspension setup and the tire.

I run 10.5x18et25 square on JRZ RS2's with -3.2 degrees of camber, 3mm spacers and some tires fit and some don't. 275 NT01 fits. 275 Maxxis RC1 won't (rubs the spring). Even the ones that "fit" still rub the fender liner at full lock.

With an 11" rim, I assume you'd want to run an even wider tire like a 285 or 295 which would take up even more room.

thx a lot for your input. that's basically what I expected. It will work but steering will be pain.
Currently I do have 10x18 ET25 with 10mm spacers so a 10x18ET15.
A 11x18 ET25 with a 15mm spacer will move 3mm towards the damper
but then it's +23mm on the outside which is nearly +1inch...

[SYT_Shadow]

I'm running square 10.5 et27 on two E9X M3s.

I need a 3mm spacer up front to clear the spring perch which is located right by the wheel's rim.
If I did not run a helper spring (or ran a 4.5" front spring vs my 5") then it would be easy to move the perch out of the way and run my setup with no spacer.

I'm sure it can fit, although by then you'll probably remove the fender liners as well.

[macdude357]

Originally Posted by roastbeef

when did you get coilovers?

December. Someone was selling a set of JRZ RS2's for $2400 so I picked them up.

[Richbot]

I think you're going to start having some interference problems at the rear of the fenders depending on the tire, the fender liners are just the "canary in the coal mine" there's a body seam right behind them that might needs some clearancing once you push the edge of the tire out about 15mm further than on a 10J wheel. With a 285/30-18 or around that size it might be fine though, assuming camber is sufficient to keep the fenders happy

No doubt a 275 or 285 is going to be happier on an 11" wheel than a 10" wheel though. If you're trying to find a little more front tire life and speed, might be some there. Though I think you'll trade some loss of steering feedback with the increased front track and no suspension geometry changes, that's nearly a full 1.5" more front track than stock and the scrub geometry will be a little weirder than your 10's

[kuy902]

Originally Posted by lukester

Hi guys,

I'm looking for a couple of ideas on a 11x18 square setup.
Anybody running it?

Thx a lot and greetings from Germany.
# Luke

Yo Luke
I see that you were running 295 30 18 square
are you running KW CS with no helper spring?
how much spacers did u need?

[JustAnothaM4]

I'm running 18x10.5 +20 square with 285/30/10 FZ01 tires on KW CS with the shorter 5.5" eibach ers springs (inc helper springs). The spring perch sits high enough to avoid tire rubbing. I also don't need wheel spacers! No rubbing anywhere even at full lock!

[Properstyle]

Originally Posted by project e46m3

I'm running 18x10.5 +20 square with 285/30/10 FZ01 tires on KW CS with the shorter 5.5" eibach ers springs (inc helper springs). The spring perch sits high enough to avoid tire rubbing. I also don't need wheel spacers! No rubbing anywhere even at full lock!

same I had rubbing issues on the factory spring for the kw club sports and had to buy the shorter eibach to raise the perch no more spacer needed. 19x10 et 20 26530.

how do you like those tires thought you were selling them.

[SYT_Shadow]

I run square 18x10.5 ET 27. Works well.

Not sure I could get an 11" in the front to work!

[JustAnothaM4]

Originally Posted by Properstyle

same I had rubbing issues on the factory spring for the kw club sports and had to buy the shorter eibach to raise the perch no more spacer needed. 19x10 et 20 26530.

how do you like those tires thought you were selling them.

Yeah, I removed the original KW springs during install as i knew it would be a problem.

I was going to sell them but, decided to man up and buy proper front offset wheels to fit the wide rubber without the need for spacers. Waiting for my upcoming track day to test them out.

[slicer]

I don't see how an 11 could possibly fit. I have seen a lot of people with 10.5's. I'm currently attempting to fit 10 et 15 with 285/30/18 hoosiers and PSCup2's. My coil-overs reduce inner clearance like KW but I'm trying to avoid removing the helper spring and a shorter spring isn't really an option with the Ohlins (TTX) suspension design. That being said, I'm hoping that around -3.5 camber will get me there. Here's a pic with the wheels and -3.3 camber. I think this will be a challenge for the hoosiers. I'm reasonably confident that I can make the cup2's work. Any thoughts from those who have been down this road?


Untitled by slicerM, on Flickr

Untitled by slicerM, on Flickr

Untitled by slicerM, on Flickr
Untitled by slicerM, on Flickr

[SYT_Shadow]

I can get it to work with ET27 wheels. I use a 3mm spacer to clear the spring perch (running helper springs) but with ~-2.2 camber or so which is what I use on the street it doesn't rub on the outside like yours looks like it wants to do

ET15 is insane!

[M3ANMACHINE]

It's been done, it just doesn't make much sense to do so.

[slicer]

Originally Posted by SYT_Shadow

I can get it to work with ET27 wheels. I use a 3mm spacer to clear the spring perch (running helper springs) but with ~-2.2 camber or so which is what I use on the street it doesn't rub on the outside like yours looks like it wants to do

ET15 is insane!

Thanks. Et24 effective on a 10" or 10.5" wheel? 285/30/18 tires or 275/35/18 tires?

10 et15 is perfect with 265 or 275 tires and my level of camber. The 285 hoosiers are presenting a challenge (not surprised considering the dimensions of that tire).

Here's a pic of the front fitment with 10 et15 and 265/35/18 PSCup2's:

Untitled by slicerM, on Flickr

[SYT_Shadow]

Originally Posted by slicer

Thanks. Et24 effective on a 10" or 10.5" wheel? 285/30/18 tires or 275/35/18 tires?

10 et15 is perfect with 265 or 275 tires and my level of camber. The 285 hoosiers are presenting a challenge (not surprised considering the dimensions of that tire).

Here's a pic of the front fitment with 10 et15 and 265/35/18 PSCup2's:

Untitled by slicerM, on Flickr

10.5 wheels, 275/35 tires