Max tire size for an 85?
Thread Starter
Instructor
Joined: Mar 2002
Posts: 176
Likes: 0
From: Brentwood Essex
Max tire size for an 85?
Got 275's on the rear at the moment and still having traction problems.
Question 1: Will 315's fit with the right offset without extending beyond the wheel arch (my existing 275's clear the inner wheel well by about 1mm!
Question 2: How large a wheel arch extension will I need for 335's?
TIA
Steve
Question 1: Will 315's fit with the right offset without extending beyond the wheel arch (my existing 275's clear the inner wheel well by about 1mm!
Question 2: How large a wheel arch extension will I need for 335's?
TIA
Steve
Race Director
Joined: Feb 1999
Posts: 12,772
Likes: 17
From: Indianapolis IN
Re: Max tire size for an 85? (steveelsbury)
I have 315's on the rear with the correct offset. The Grand Sport extension flare works great but I have yet to buy them
[Modified by ld85, 12:02 PM 11/4/2002]
[Modified by ld85, 12:02 PM 11/4/2002]
Drifting
Joined: Nov 2000
Posts: 1,483
Likes: 0
From: Las Vegas Nevada
Re: Max tire size for an 85? (steveelsbury)
If you run ZR1 (with ZR1 offset) in the rear you will be fine. You can squeeze a 335 on there if you needed, but 315 fits better.
No flares needed!
Matt
No flares needed!
Matt
Le Mans Master
Joined: Nov 2000
Posts: 7,391
Likes: 3
From: Chandler AZ
Re: Max tire size for an 85? (steveelsbury)
Steve,
With a 36.5mm offset (ZR-1) you will be able to fit a 315/35R-17 more or less flush with a 17X11" rim. 335's are pushing the limit, really. You can see by this shot that they fit well with a 1/2 degree of negative camber:
[Modified by billreid1@***.net, 8:16 PM 11/4/2002]
With a 36.5mm offset (ZR-1) you will be able to fit a 315/35R-17 more or less flush with a 17X11" rim. 335's are pushing the limit, really. You can see by this shot that they fit well with a 1/2 degree of negative camber:
[Modified by billreid1@***.net, 8:16 PM 11/4/2002]
Burning Brakes
Joined: Feb 2002
Posts: 1,232
Likes: 10
From: Montrose Colorado
Re: Max tire size for an 85? (billreid1@***.net)
Steve,
With a 36.5mm offset (ZR-1) you will be able to fit a 315/35R-17 more or less flush with a 17X11" rim. 335's are pushing the limit, really. You can see by this shot that they fit well with a 1/2 degree of negative camber:
[Modified by billreid1@***.net, 8:16 PM 11/4/2002]
With a 36.5mm offset (ZR-1) you will be able to fit a 315/35R-17 more or less flush with a 17X11" rim. 335's are pushing the limit, really. You can see by this shot that they fit well with a 1/2 degree of negative camber:
[Modified by billreid1@***.net, 8:16 PM 11/4/2002]
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Every 2027 Corvette Engine Explained
Joe Kucinski
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
Verdad Gallardo
10 Ugly Corvettes That We Still Kinda Love
Joe Kucinski
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Thread Starter
Instructor
Joined: Mar 2002
Posts: 176
Likes: 0
From: Brentwood Essex
Re: Max tire size for an 85? (billreid1@***.net)
Steve,
With a 36.5mm offset (ZR-1) you will be able to fit a 315/35R-17 more or less flush with a 17X11" rim. 335's are pushing the limit, really. You can see by this shot that they fit well with a 1/2 degree of negative camber:
[Modified by billreid1@***.net, 8:16 PM 11/4/2002]
With a 36.5mm offset (ZR-1) you will be able to fit a 315/35R-17 more or less flush with a 17X11" rim. 335's are pushing the limit, really. You can see by this shot that they fit well with a 1/2 degree of negative camber:
[Modified by billreid1@***.net, 8:16 PM 11/4/2002]
Steve
Drifting
Joined: May 2002
Posts: 1,509
Likes: 3
From: Hazel Park MI
Re: Max tire size for an 85? (steveelsbury)
I've been wondering about this thought. Bigger tires, more surface area, more traction. Yet what about the moment of inertia of the tire? It takes more energy to move them big ole' meats as opposed to a smaller tire. The question becomes how negligible is the moment of inertia as compared to traction gain? This is probably one of the reasons true slicks compress somewhat off the launch - it eases the moment of inertia of the tire. I have the stock rims in the garage, and I need tires anyway. In spring I'll try track comparisons and see if there is a noticeable difference. They will be different make tires though, so that has to be considered, along with difference in size of the tires. :seeya
Melting Slicks
Joined: Mar 2001
Posts: 2,150
Likes: 304
From: Timra, Sweden
Re: Max tire size for an 85? (vettl83)
Bill I have a set of ZR-1 wheels and tires off my 91 ZR-1. Are you saying they will bolt up to the 84's and 85's without the use of adapters? 84 CF 91 ZR-1
http://w1.601.telia.com/~u60113743/corvette_wheels/
Le Mans Master
Joined: Aug 2015
Posts: 6,125
Likes: 2,000
From: St. Charles MO
