NOW we're talking! I'm looking forward to your results. I am running the same setup.. GT30's, Kw's, and a rear camber kit. Now i just need to find out if the 305's will fit before i do it.

 

Haven't received the KW's yet, probably by Wednesday. I'm on the 255/305's now, but on stock suspension and no rub. 255/30 are perfect fit and stance on the front 9.5's, wouldn't want wider (I mentioned doing 275's). 305's fit the 10.5's no problem WITH NO RUB (again, on stock suspension) but actually look too wide for the wheel, lip gets lost in the rubber. I'm gonna wait until the suspension is on and aligned before I make more claims about fitting even wider on the rears, but so far I think it could be done w/ a custom fitted 3-piece (maybe a 2-Piece) wheel. Who knows? But, man I'll tell you, the A** shot w/ the 305's looks sick. I don't think I'm gonna post any new pics until the suspension is done and the car is detailed.

 

hONESTLY, IT'S ALL FOR LOOKS CAUSE G37 BARELY Spins 245 tires in the rear when u drop the clutch, 305+ is more like viper or corvette status. Shyt load of power, which G dont have unless u have twins.

 

^ no one said it was for performance.. it's all about looks baby

 

Discount tire scratched my GT30's when mounting on my replacement T1-R on the rear, i won't go back again.

JKashat, i'm looking forward to the results! Are you gonna go really low with the KW's or just moderate?

 

As long as you keep the rear at stock suspension heigth you should be fine then. I'm on 285's with Eibach's, a simple .7 drop, and rub on moderate bumps... moreso with a full tank. It's that damn rear fender bolt and bracket that gets in the way. I really don't want to grind and bend it and may consider raising the back up to stock with coilovers as the long term solution. I kinda like the muscle rake anyway.

 

Ah, so being low on coilovers pretty much eliminates the possibility for 305's in the rear, even if the fender bracket bent out of the way?

 

KW's came in today, so we'll see soon.

 

Any updates ???

 

i'm actually out of town right now (in Scottsdale, AZ) and don't know what day I'll be leaving yet for LA, then home. I have the KW's and SPC camber kit in the trunk of my G. I have an installation date scheduled for June 9th. Lots of updates after that.

 

okay I put on my GT30s 285 rear last Thursday and I had to raise back my car a bit because it wouldn't fit. The fender was basically sitting on my tire sidewalls and this was when my car was on flat ground! But then I was pretty low on my OEMs..

I trimmed the fender bracket completely. It's SHAVED, nothing left, barely anything but the bolt. I'm not rubbing anymore but going up driveways and big dips and bumps I can see the wheels getting tucked behind the fender and pulling against it.

Btw I have rear camber kit with -1.7 camber which is near the minimum of the factory spec range.

I can see fitting in 305 if I raise up more.. but if u plan on going low I would think either you need to run more negative camber or u can also relocate the fender bolt elsewhere u know (but Im not sure if this will help).

Really interested to know of the outcome! Keep us posted

 

I agree IMO 275 in the front is too big.... would say that 245 or 255 is big enough..... but just my opinion.

 

For everyone saying to just run more negative camber, doing so will 1) completely change your handling and 2) eat through rear tires at a highly accelerated rate (2 or 3 sets of rears to 1 pair of fronts).

 

^BB is definately right. I chewed my Kumhos with a 320 threadwear in six months.

 

What was your camber?