I am wanting to put 315's out back.. Who has done this? What is your rim dimensions? What rear are you running?

 

I'm running Nitto's 315/35r17 drag radial on a 17x9 GM SS/ZR1 wheel. Using an 02 TA rear. No spacers, no fenderwell mods other than what I had previously done before for larger 15x10s (rolled quarter lips and lightly massaged front of wells). Not the most optimal combo, but it works and looks good.

 

Do you have any pics of what you did?

 

I have the 17x11 ZR1's on my car with the 315/35/17 Sumitomo's and I have not had to roll the fenders at all. The tires do not rub, the only time they have is if I have 4 people in the car and I toke a corner real fast. But if your car is lowered then you will need to roll the fenders.

 

I have 315/35R17 BFG Drag Radials mounted on 17X10.5 Simmons FR17 rims bolted to a 4th gen rear (wheels are made for a 4th gen). I've done no work to clearance the tires and more, the car has Eibach Sportline lowering springs on it, and they've only touched once, and that was a very major bump. My rear shocks at the moment are 50/50 Lakewood Drag Shocks, so you know there's quite a bit of travel back there.

 

So I could run some 17 x 11 ZR1 wheels out back and some 17 x 9.5 ZR1's up front? I dont' think I can put my tire on anything less than a 11 inch rim...

 

Yep.. Michelin and Goodyears both recommend running 10.5-12.5 width in rims
Can I run 17X11 Zr1 Rims out back???... I have a 86 with a 97 rear....

 

This should do: Nitto 315 on 17x9 wheel

I have some other shots, but they turned out dark due to poor lighting. I'm much better with cars than cameras Looking dead on from the rear, only the very outer tread block is visible past the quarter panel.

This should also show ALL the nay-sayers that a Nitto 315 will fit on a 17x9 safely, with minimal bulge.

 

Even Nitto Recommends using a 10.5-12.5 Inch Rim...
http://www.nittotire.com/tires_555r.asp

 

I run 315s. 17x11 ZR1 wheel with a 4th Gen rear. My car is lowered and I have the rear fender lips rolled. I had to "massage" the inner fender well due to the inside wall of the tire rubbing.

Eric

 

Yes, I know that. But lets not turn this into another one of these threads. Look for yourself... does the tire look unacceptable for the wheel?

 

Oh I believe you... The picture it looks fine.. I was just exclaming the nitto's and the goodyears and michelins all say the same thing.. People talk about the buldge, but I don't think it looks too bad.. not like a 17x11 though..

 

So 17x9.5 up front and 17x11's in the Rear..

I should just use ZR-1 Specs to order for the backspacing and offset?

 

i think you'll need spacers up front and out back (unless you use the 4th gen rear) and I believe you gotta go 2 1/2" to make clearance for any 4th gen wheel

 

i have a friend who is running 325's on his iroc, he used r/s wheels the old ones they dont rub and he didn't roll the lip they look awsome too pretty wide