SM wheel and tire setup - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

aquaman · 10-25-2015, 07:29 PM

Hey, I'm autocrossing in the SM class and having a blast! I was wondering what anyone else in that class was running for a wheel and tire setup. I'm currently using my street tires and I want to get a dedicated wheel and tie setup. Thanks in advance.

vroom4 · 10-25-2015, 08:01 PM

I'm assuming this is without fender mods or flares?

redlined600 · 10-25-2015, 08:24 PM

I wonder if 949 racing's 17x10s would fit with just a roll/pull?

ka-t_240 · 10-26-2015, 05:28 PM

Quote:

Originally Posted by aquaman

Hey, I'm autocrossing in the SM class and having a blast! I was wondering what anyone else in that class was running for a wheel and tire setup. I'm currently using my street tires and I want to get a dedicated wheel and tie setup. Thanks in advance.

What do you already have as far as suspension/power? Depending on this, and fender clearance you should be looking at something at least 9 inches wide and at least a 255 A6/Kuhmo/Hankook.

aquaman · 10-26-2015, 06:53 PM

Quote:

Originally Posted by vroom4

I'm assuming this is without fender mods or flares?

i have aftermarket fenders (carbon fiber) I'm not %100 sure if they are wider....

aquaman · 10-26-2015, 06:56 PM

Quote:

Originally Posted by ka-t_240

What do you already have as far as suspension/power? Depending on this, and fender clearance you should be looking at something at least 9 inches wide and at least a 255 A6/Kuhmo/Hankook.

apexi N1 coilovers, megan racing lower control arms, whiteline sway bars, wilwood BBK 6 pot fron 4 pot rear and an AVO turbo kit at 12psi somwhere in the low 300

vroom4 · 10-26-2015, 07:27 PM

I'd be wanting at least 275s on a 10....a "light" build would probably do just fine with a 245 40 17 a7 on a 17x9

jdrxb9 · 10-28-2015, 10:54 AM

Quote:

Originally Posted by aquaman

apexi N1 coilovers, megan racing lower control arms, whiteline sway bars, wilwood BBK 6 pot fron 4 pot rear and an AVO turbo kit at 12psi somwhere in the low 300

Have you looked through this thread? http://www.ft86club.com/forums/showthread.php?t=7535
Lots of examples up to 10.5" with various amounts of camber and fender mods.

With no driveline mods, I'd be worried about overall diameter as much as width. A7's in 285/30-18 would be great, but that on a 10 is probably going to require more than optimal camber or a significant fender pull. Barring that, I 2nd the 245/40-17 A7 on a 9 as an intermediate 'stepping stone'.

xwd · 10-28-2015, 02:53 PM

I think an "easy" setup would be the 17x10 949 rims when they come out or Forgestar F14s which are available in 17x10 and then 275/35/17 Hoosiers. Anything >10" is going to require 18s or something else custom.

I don't think 275/35/17 will require significant modifications at all.

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10-25-2015, 08:01 PM	#2
vroom4 Join Date: Feb 2014 Drives: BRZ Location: East Posts: 820 Thanks: 18 Thanked 301 Times in 186 Posts Mentioned: 9 Post(s) Tagged: 0 Thread(s)	I'm assuming this is without fender mods or flares?

10-25-2015, 08:24 PM	#3
redlined600 Senior Member Join Date: Nov 2014 Drives: Fr-s Location: MN Posts: 773 Thanks: 139 Thanked 555 Times in 288 Posts Mentioned: 5 Post(s) Tagged: 0 Thread(s)	I wonder if 949 racing's 17x10s would fit with just a roll/pull?

10-26-2015, 07:27 PM	#7
vroom4 Join Date: Feb 2014 Drives: BRZ Location: East Posts: 820 Thanks: 18 Thanked 301 Times in 186 Posts Mentioned: 9 Post(s) Tagged: 0 Thread(s)	I'd be wanting at least 275s on a 10....a "light" build would probably do just fine with a 245 40 17 a7 on a 17x9

10-28-2015, 02:53 PM	#9
xwd Senior Member Join Date: Feb 2012 Drives: 2013 DGM Subaru BRZ (Subie #9) Location: ATL, US Posts: 2,667 Thanks: 123 Thanked 861 Times in 552 Posts Mentioned: 32 Post(s) Tagged: 0 Thread(s)	I think an "easy" setup would be the 17x10 949 rims when they come out or Forgestar F14s which are available in 17x10 and then 275/35/17 Hoosiers. Anything >10" is going to require 18s or something else custom. I don't think 275/35/17 will require significant modifications at all.

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