Wheels height question?
#1
Registered User
Thread Starter
Join Date: Sep 2002
Location: Coquitlam, British Columbia
Posts: 1,420
Wheels height question?
I'm going to an 18" wheel on the rear of my Z, but I don't want to have to any computer editing. What would equal in diameter to a 275/40/17? If I went to a 285/35/18 would I be ok. What would be the height difference?
Thanks
Thanks
#6
Originally posted by sleeperZragtop
..it would be just out the back, but thanks for your replies and input...
..it would be just out the back, but thanks for your replies and input...
I believe you can go up to 285's in the back, or even 295's without rubbing. As far as height goes, I was told by a number of people that going over 18 can be risky (some guy said 20's would fit).
#8
To answer you question....
The stock tire size (245/50-16 or 275/40-17) works out to about 25.65" diameter.
A 275/35-18 is 25.58" diameter..... causing the speedo to read 2/10 mph high at 60mph.
A 285/35-18 is 25.85" diameter..... causing the speedo to read 1/2 mph low at 60mph.
Niether of these speed errors is worth "reprogramming" unless you just happen to have a HPP or LT1_Edit handy..... .
All of the dimensions are "theoretical", to the extent that there is a little variation from manufacturer to manufacturer, and even within different tire lines from the same manufacturer.
The stock tire size (245/50-16 or 275/40-17) works out to about 25.65" diameter.
A 275/35-18 is 25.58" diameter..... causing the speedo to read 2/10 mph high at 60mph.
A 285/35-18 is 25.85" diameter..... causing the speedo to read 1/2 mph low at 60mph.
Niether of these speed errors is worth "reprogramming" unless you just happen to have a HPP or LT1_Edit handy..... .
All of the dimensions are "theoretical", to the extent that there is a little variation from manufacturer to manufacturer, and even within different tire lines from the same manufacturer.
Thread
Thread Starter
Forum
Replies
Last Post
ChrisFrez
CamaroZ28.Com Podcast
0
11-30-2014 08:41 AM
redzed
Automotive News / Industry / Future Vehicle Discussion
7
09-04-2002 06:22 PM