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      06-12-2011, 06:05 PM   #1
GothM
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Apex ARC-8 18X9 / 18X10 update

Hey, I rarely post on here but I thought I would post an update on my 18x9" 245/40 front, 18X10" 275/30 rear Apex ARC-8/Nitto Invo, H&R spring set up for the benefit of Z4M Kind.

I have been happily running the set up for two seasons. Last season I had no rubbing issues of any kind front or rear even at the track. This season the H&R Springs have settled enough that I am getting very slight rubbing on the outside rear tires on the track. Normal aggressive street driving however is not an issue. I was planning on dropping down to a 235 f & 265 r set up anyway due to my opinion that the 275 are more tire than I need and I am always looking to reduce unsprung weight. I am sure that this will fix the issue.

Hope that info benefits someone out there considering this set up.

Cheerio.


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      06-12-2011, 06:17 PM   #2
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Thanks for the update.

My set up is 18x9 ET17 (5mm less aggressive than yours according to 1010Wheels offset caculator) and I have 255/40/18 Advan Neova AD08 and the rears are rubbing (suspension is Eibach/Koni). The AD08s look wider than my original Contis of the same size and the shoulders are pretty square so that definitely contributes to the rubbing.
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      06-12-2011, 08:02 PM   #3
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Take a fender roller to the rear fender and you should be fine.

My street setup is a 245/275 19" Nt05 setup, I have no problems with rubbing even with the car slammed. As soon as I put the NT01s on with a square shoulder I was getting bad rub in the rear, ended up cutting out the fender liners and flaring the fenders a bit with the Eastwood Fender rolling. No more rub.
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      06-12-2011, 08:10 PM   #4
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Quote:
Originally Posted by onelove View Post
Take a fender roller to the rear fender and you should be fine.

My street setup is a 245/275 19" Nt05 setup, I have no problems with rubbing even with the car slammed. As soon as I put the NT01s on with a square shoulder I was getting bad rub in the rear, ended up cutting out the fender liners and flaring the fenders a bit with the Eastwood Fender rolling. No more rub.
What's the wheel spec?
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      06-12-2011, 08:12 PM   #5
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Good to know, dedicated track wheels are on my "wish list".
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      06-12-2011, 10:18 PM   #6
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Quote:
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What's the wheel spec?
Same as above, from the group buy (apex 18x9 / 18x10). Street wheels are HRE C20. My front fender liners are worn through on the outside, just let the tire eat them up and then trimmed with a dremel.

That being said, glad I went to full on track wheels, trimming wasn't a big deal and took less than 2 hours for all 4 wheels. Well worth it for the extra grip on track.
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      11-02-2011, 10:58 PM   #7
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Thanks for posting. I was looking for this exact information (but for 18x9.5s on all four corners.)
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      11-03-2011, 09:35 PM   #8
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Quote:
Originally Posted by kklin View Post
Thanks for posting. I was looking for this exact information (but for 18x9.5s on all four corners.)
I was planning on doing the same. 18 x 9.5 hopping to run 265's all around! still on stock suspension but am considering h&r springs and eventually coil overs.

I know I'll need a ton of negative camber on the front somewhere around 2.5 -3 degrees
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      11-03-2011, 10:33 PM   #9
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Quote:
Originally Posted by Neverlift328 View Post
I was planning on doing the same. 18 x 9.5 hopping to run 265's all around! still on stock suspension but am considering h&r springs and eventually coil overs.

I know I'll need a ton of negative camber on the front somewhere around 2.5 -3 degrees
If I buy new street autocrossers it will most likely be 275 Direzza Z1s (which don't come in 19"). I be driving completely stock with front full-depth Contis this weekend with phillyscca.com/solo.

BTW, I see you're from Hartford. I just bought my coupe (7/08 build) at North Haven a few weeks ago and drove it back to PA.
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      11-04-2011, 08:33 AM   #10
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Quote:
Originally Posted by kklin View Post
If I buy new street autocrossers it will most likely be 275 Direzza Z1s (which don't come in 19"). I be driving completely stock with front full-depth Contis this weekend with phillyscca.com/solo.

BTW, I see you're from Hartford. I just bought my coupe (7/08 build) at North Haven a few weeks ago and drove it back to PA.
Very nice! North Haven isn't far down the road. Small world!
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      11-04-2011, 10:32 AM   #11
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Quote:
Originally Posted by Neverlift328 View Post
I was planning on doing the same. 18 x 9.5 hopping to run 265's all around! still on stock suspension but am considering h&r springs and eventually coil overs.

I know I'll need a ton of negative camber on the front somewhere around 2.5 -3 degrees
I run 265mm RE-11s all around, its fantastic! 18x9 wheels, spaced 35 offset front, and 20 rear
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      11-04-2011, 11:53 AM   #12
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Quote:
Originally Posted by Roffle Waffle View Post
I run 265mm RE-11s all around, its fantastic! 18x9 wheels, spaced 35 offset front, and 20 rear
I see you're around Philly. Weather's supposed to be nice this Sunday to play (or watch) at Warminster - http://www.phillyscca.com/solo2/index.html. 93 pre-registered so far. We're a very friendly bunch. All novices welcome if you've never autocrossed!
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      11-04-2011, 01:25 PM   #13
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Quote:
Originally Posted by Roffle Waffle View Post
I run 265mm RE-11s all around, its fantastic! 18x9 wheels, spaced 35 offset front, and 20 rear
I was going to run the 18x9 but I wanted the concave look. Do you think rubbing will be a huge issue with my setup?? I really wanna make sure I can run these without issue before I spend a couple grand
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      11-04-2011, 01:57 PM   #14
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235/265 a bit stretched on 18x9, 18x10?
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      11-04-2011, 04:57 PM   #15
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Quote:
Originally Posted by kklin View Post
I see you're around Philly. Weather's supposed to be nice this Sunday to play (or watch) at Warminster - http://www.phillyscca.com/solo2/index.html. 93 pre-registered so far. We're a very friendly bunch. All novices welcome if you've never autocrossed!
I'll try to make it
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      11-04-2011, 06:07 PM   #16
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Quote:
Originally Posted by Neverlift328 View Post
I was going to run the 18x9 but I wanted the concave look. Do you think rubbing will be a huge issue with my setup?? I really wanna make sure I can run these without issue before I spend a couple grand
what offsets do you want to run on 18x9?
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      11-05-2011, 08:17 AM   #17
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Quote:
Originally Posted by Roffle Waffle View Post
what offsets do you want to run on 18x9?
I wanted to run 18x 9.5" offset 35 265 all around probably Hankook RS3

I will install camber plates to get around 2.5-3 degrees of negative camber 5 mm spacer most likely but not 100%
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      11-05-2011, 10:42 AM   #18
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I found more square feedback here - http://www.zpost.com/forums/showthread.php?t=473674
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      11-05-2011, 11:12 AM   #19
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Quote:
Originally Posted by Neverlift328 View Post
I wanted to run 18x 9.5" offset 35 265 all around probably Hankook RS3

I will install camber plates to get around 2.5-3 degrees of negative camber 5 mm spacer most likely but not 100%
I haven't heard of anyone running 9.5" up front, but you should do your research....

edit: see link above
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      11-05-2011, 11:30 AM   #20
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Quote:
Originally Posted by Roffle Waffle View Post
I haven't heard of anyone running 9.5" up front, but you should do your research....

edit: see link above
I posted all over that thread. see page 2 there are several pics of people running 9.5 in the front. The red car on the second page of that thread has them wrapped in pilot sport cups.
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