zeke2u

The '01's were Alcoas, forged and IIRC they're marginally heavier. The '02 on were Speedline.

apollo240

The 02 up are cast right? What i read said forged was lighter, kinda better. Just trying to understand. Im happy knowing i got speedlines though

rjwz28

2001 wheels are Alcoa and yes, they're heavier than the 02-04 Speedlines

quick04Z06

Do any of you drive the 315-30-18 square set up with factory Z06 rear wheels at all 4 corners on the street? I was wondering if while good for track handling such a set up was tough to live with on the street.

rjwz28

It's going to follow lines and cracks in the road a lot more than a narrower front tire, for sure

04silverZ06

Absolutely love the look with the 315-30-18's all the way around!

Any spacers required? Also do you have coilovers?

ktlocklear

Thanks.......no spacers required, although I have ran with 5mm spacers on the rear with no issues.....but again, no spacers are required to clear anything. Also, i have coilovers on the car now.......but in the above pic it's lowered on aftermarket bolts

RDnomorecobra

yes and as already stated, the car "hunts" in the grooves in the road more. other than that it doesn't present any real problems. I do try not to turn the wheel to full lock however ... depending on your suspension set up you could get a bit of rubbing on the control arms etc. I wouldn't recommend running that large a tire on a street only car.

mikebq

I have 18's all around with no problems ...PS2's 275/35/18 front , on 9.5 rim , 315/30/18 with 10.5 rim on the rears with no problems w/ coilovers also. I don't track the car or take it to the drags. No traction or act handling problems, 660 HP ....Going to Toyo R888, need traction.

04silverZ06

Would you be willing post some pics?

PS - I bet you can't wait for this snow to melt - I know I can't! I think you guys got even more snow than we did here in Ontario!