blnewt

iTrader: (13)

Not without some heavy camber at the minimum, and the front will be even tighter.

blnewt

iTrader: (13)

If you plan to do some track duty you want to run a bit more camber, shoot for a -1.7 to -2.0, this will open up a bit more tire for you to run.

If you want a 9.5/10.5 stagger I'd run 9.5 +30 to +35 front on a 245/35 and 10.5 +40 on a 285/30, you'd probably have room for a 295 as well depending on how wide the tire brand actually runs.
Be sure to run a 35 series in front and a 30 in back, this will keep your rolling diameters close front to back.
Also be sure to confirm big caliper clearance for the front wheel, with a +35 you should be ok for most wheels but some need even more room.

blnewt

iTrader: (13)

Seems like camber in the -1,7 to -2.0 is a good setup for some track days mixed in w/ mainly street driving. As long as your toe is in spec and you can rotate your tires (at least side to side) every 7k miles you should expect reasonable wear.

StreetShotz

Thats great info.

Sadly the wheel sim looking at are 20x9 +32 or +20 and 20x10.5+45 or +27

Would I be able to run these with no rolling, cutting, crazy camber?

VRG37S

iTrader: (59)

Yep the 20x9 +32 for the front will work fine
20x10.5 +45 will work fine for the rear
With these offsets u should be able to run a 255/285 combo no prob without rubbing or any fender modifications

Hope that helps

I run a 20x9.5 +35 and 20x10.5 +37 with a moderate 1.2 drop with a 255/285 tire combo and I don't rub on fenders or anything.

StreetShotz

Thats a massive help.
I do plan on running on coils (KW V3 or similar) and need usable ground clearance so wont be super low.

blnewt

iTrader: (13)

The +45 in back will allow you to run more tire, like VRGs' coupe, you'll be fine w/ 285s. I ran 295s on my 10 +45 on my sedan and the coupe has more room to the outside, so 295s would work as well And my camber is low, around -1.0, so running more camber for some track duty you'll have even more room.

jthibodeau89

My car is a 2012 G37xS Coupe. I'm looking at the Forgestar CF5V in 20x9.5 +40 (or 20x9 +35) and 255/35 P-Zero tires FR and 20x10.5 +45 with 295/30 P-Zero on the rear Rear. From what I have read this should be no problem with my mild coilover drop. Forgestar is confirming that the Ksport Supercomp 400mm BBK will fit, but I think it is no issue diameter wise, just a concern with offset clearance.

With all the room to the inside of the coupe rear, is it possible to fit a 325/25-20 P-zero (13.5" section width) on 20x12 +80 wheels? Forgestar is also check caliper clearance on this , but it is likely just a dream.

blnewt

iTrader: (13)

You'll have serious clearance problems to the inside w/ that 12" with that much positive offset. Those K sport calipers should clear pretty easy as far as to the spokes, they aren't as fat as the Akebonos since they're a longer 8 pot setup.
You could run a 9.5 +30 in front on 255s and an 11" +40 w/ 295s or +45 w/ 305s. The 255/35 & 305/30 is a decent combo, it's 0.65% larger in back so over time you'll get that variance closer to zero.

VenomGT9

iTrader: (4)

We need some pics up in this thing!
305+ perhaps

jthibodeau89

Thanks for the advice on the 305/30. I was thinking that it was too big of a step, but didn't consider the wear bringing it back closer to spec.

I may mock up the 325/25 tire and 12" +80 wheel to see where the issues lie. I'm not against pulling the finder liner and making a custom CF/Kevlar liner.

I'll definitely post up pics in the coming months as this comes together.

I'm coming down off of a GTR addiction. I turned in my corporate lease after a 1 yr love affair with 2 different 2015 GTR's (gawd I love working here). I've decided to turn a G37xS into a GTR stalker for the East TN mountain roads. First comes the susp/wheels & tires/LSD, then BRAKES, and finally the powertrain. My target is 600whp.

This forum is a wealth of information. Thanks for the help.

Ryne

iTrader: (12)

The max negative side of OEM spec, maybe a touch extra. I'd say -2. Tire cupping is more so a product of bad suspension, such as blown shocks/struts. Toe also has a much larger impact on tread wear than camber.

steezy

Can you give full specs and offsets of this?

steezy

Are you lowered? This it possible to run run this setup with 2 inch drop?

steezy

Can you post a picture of your setup?