370z tire fitment

mpp9 · 11-04-2009, 10:13 PM

Tirerack told me there might be rubbing issues with 265/275 rear. Are they just being extremely safe when reccomending tire fitments or might there be an issue?

Robispec · 11-04-2009, 10:50 PM

Quote:

Originally Posted by mpp9

Tirerack told me there might be rubbing issues with 265/275 rear. Are they just being extremely safe when reccomending tire fitments or might there be an issue?

I just did fitments on the new robispec 370z on the rear I can get a 12" wide wheel (with 315 tires) the offset would be around 25 (the shop car has 10.5" wheels with the effective offset of +13 this leaves no room on the outside but 2"+ clearance on the shock (not coilover spring as the car has a race spring conversion in the stock spring location). If you went to coilovers you would lose 1" of this available width due to the spring raped around the damper. on the front the 10.5" wheel fits fine with an offset of around +30-25. The robispec Z will end up with a "square" setup of 10.5 +38's all around running 285/30/18 tires. with ZERO clearance issues..imo the only thing limiting the tire width up to 315's is the rim...as always ymmv..

RObi

ChrisSlicks · 11-05-2009, 09:08 AM

Quote:

Originally Posted by Robispec

I just did fitments on the new robispec 370z on the rear I can get a 12" wide wheel (with 315 tires) the offset would be around 25 (the shop car has 10.5" wheels with the effective offset of +13 this leaves no room on the outside but 2"+ clearance on the shock (not coilover spring as the car has a race spring conversion in the stock spring location). If you went to coilovers you would lose 1" of this available width due to the spring raped around the damper. on the front the 10.5" wheel fits fine with an offset of around +30-25. The robispec Z will end up with a "square" setup of 10.5 +38's all around running 285/30/18 tires. with ZERO clearance issues..imo the only thing limiting the tire width up to 315's is the rim...as always ymmv..

Well said Robi. Are you going with 285's all around because of the limits on the class or some other reason?

vpn2001 · 11-05-2009, 09:34 AM

I bought 245/45-18 & 275/40-18 tires for the base rims. Hoping to mount them this coming week. I'll update you on fitment when they are mounted.

mpp9 · 11-07-2009, 01:46 AM

Quote:

Originally Posted by vpn2001

I bought 245/45-18 & 275/40-18 tires for the base rims. Hoping to mount them this coming week. I'll update you on fitment when they are mounted.

I was looking into sumitomo 265s from an e92 m3 fitment. Wat were u looking into doing

ChrisSlicks · 11-05-2009, 09:05 AM

Quote:

Originally Posted by mpp9

Tirerack told me there might be rubbing issues with 265/275 rear. Are they just being extremely safe when reccomending tire fitments or might there be an issue?

Believe me there is absolutely no chance of rubbing with the stock wheels. You have to go to at least a 12" wheel and totally mess up the offset calculation for that to happen. I have 275 front and a 305 rear on the sport wheels and you can practically make a fist in the gap.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Tire Pressure Monitoring System; Do you get details on each tire?	raps101	Wheels & Tires	20	06-29-2009 09:17 AM
Help with oil cap fitment!	eXo5	Mid-Atlantic Region	9	05-24-2009 08:24 PM
HKS test fitment on our PROJECT 370Z	LOU@AMPLIFIED	Brakes & Suspension	20	03-23-2009 01:13 PM

11-04-2009, 10:13 PM	#1 (permalink)
mpp9 Base Member Join Date: Apr 2009 Location: Pittsburgh Posts: 103 Drives: 2012 sti Rep Power: 18	Tirerack told me there might be rubbing issues with 265/275 rear. Are they just being extremely safe when reccomending tire fitments or might there be an issue?

11-05-2009, 09:34 AM	#4 (permalink)
vpn2001 Base Member Join Date: Jun 2009 Location: PA Posts: 31 Drives: MY09PWM6 Rep Power: 17	I bought 245/45-18 & 275/40-18 tires for the base rims. Hoping to mount them this coming week. I'll update you on fitment when they are mounted.