C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

Z06 wheels- offset

Thread Tools
 
Search this Thread
 
Old Mar 6, 2003 | 10:21 PM
  #1  
Wndotintman's Avatar
Wndotintman
Thread Starter
Drifting
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Feb 2003
Posts: 1,471
Likes: 11
From: Morehead Ky
Default Z06 wheels- offset

Does anyone know where the difference the offset is in a 9.5 vs 10.5 wheel. Is it in the rear(back) part of the wheel or the front of the wheel. Or is it .5 in front and .5 in the rear. Thanks.
Reply
Old Mar 7, 2003 | 07:23 AM
  #2  
C5 Frederik's Avatar
C5 Frederik
Melting Slicks
25 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Aug 2000
Posts: 2,112
Likes: 2
From: Sindelfingen Germany
Default Re: Z06 wheels- offset (97WhiteC5)

On my OEM Z06 Spedline rims offset is
front 54mm with 9.5, rear 56mm with 10.5
When you take a look at the outside, the rear spokes are designed more into the inside than the fronts, or to say in the rear the lip comes more out than in the front
With the above data you can make two little drawings (9.5 and 10.5 rim )and maybe get an answer by looking where the offset is located.
Frederik

OK was interested myself, so I did the math: from 9.5 to 10.5 rim
there is 2 mm offset difference and each lip is half inch more out/in
so if a 10.5 is mounted instead of the 9.5
the inner lip moves to the inside 12.7 plus 2 makes about 15 mm
the outer lip moves to the outside 12.7 minus 2 makes about 11 mm

Correct me if I´m wrong or misunderstood your question.

[Modified by C5 Frederik, 1:23 PM 3/7/2003]


[Modified by C5 Frederik, 2:10 PM 3/7/2003]
Reply
Old Mar 7, 2003 | 01:42 PM
  #3  
davidfarmer's Avatar
davidfarmer
Race Director
Supporting Lifetime
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 1999
Posts: 12,422
Likes: 905
From: CONCORD NC
Default Re: Z06 wheels- offset (97WhiteC5)

7 3/8 TOTAL backspacing on the 17x9.5, 8" TOTAL on the 18x10.5. So, the larger wheels site 5/8" further "in" and 3/8 further "out"

Dave
Reply
Old Mar 7, 2003 | 03:38 PM
  #4  
Wndotintman's Avatar
Wndotintman
Thread Starter
Drifting
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Feb 2003
Posts: 1,471
Likes: 11
From: Morehead Ky
Default Re: Z06 wheels- offset (davidfarmer)

I didnt explain myself very well at all. What I am doing is putting Z06 wheels on my 97 C5. I was wondering where the inch difference is between the front 9.5 wheel and the stock 8.5 wheel. Is the extra inch on the Z06 wheel in the backspacing or in the outside of wheel. Sorry if i confused anyone. I know I did myself. Thanks. :thumbs:
Reply
Old Mar 7, 2003 | 03:51 PM
  #5  
C5 Frederik's Avatar
C5 Frederik
Melting Slicks
25 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Aug 2000
Posts: 2,112
Likes: 2
From: Sindelfingen Germany
Default Re: Z06 wheels- offset (97WhiteC5)

You manage to keep me busy like my sons do.... :smash:

OK, once again
old 8.5 has offset of 60 mm, new 9.5 has offset of 54, difference is 6mm

inner lip moves to inside 12.7 minus 6 makes about 7 mm
outer lip moves to outside 12.7 plus 6 makes about 19 mm

The 60 mm offset above is for Mags, do not know if its the same for waggon wheels

Frederik
Reply
Old Mar 7, 2003 | 04:25 PM
  #6  
davidfarmer's Avatar
davidfarmer
Race Director
Supporting Lifetime
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 1999
Posts: 12,422
Likes: 905
From: CONCORD NC
Default Re: Z06 wheels- offset (C5 Frederik)

Here are my numbers, 3/8" of the extra goes inside, 5/8" outside. 7" total on the 8.5, 7 3/8 total on the 9.5
Reply
Old Mar 7, 2003 | 04:51 PM
  #7  
iceburgh's Avatar
iceburgh
Race Director
20 Year Member
 
Joined: Nov 2001
Posts: 11,530
Likes: 0
From: New Bloomfield Pa
Cruise-In VI Veteran
St. Jude Donor '03-'04-'05-'06-'07-'10
Default Re: Z06 wheels- offset (97WhiteC5)

Bottom line ...they will bolt on with no problems at all. :D
Reply
Old Mar 7, 2003 | 08:57 PM
  #8  
Wndotintman's Avatar
Wndotintman
Thread Starter
Drifting
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Feb 2003
Posts: 1,471
Likes: 11
From: Morehead Ky
Default Re: Z06 wheels- offset (iceburgh68)

Yes I know they will fit, I am deciding on which wheel I am going to go with. Thanks everyone for all the info. :steering:


[Modified by 97WhiteC5, 1:58 AM 3/8/2003]
Reply

Get notified of new replies

To Z06 wheels- offset

Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-1

2027 Corvette vs The World: Every Model vs Closest Competitor

 Joe Kucinski
story-2

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
story-3

5 MOST and 5 LEAST Popular Corvette Model Years in History!

 Joe Kucinski
story-4

2027 Corvette Buyer's Guide: Everything You Need to Know!

 Joe Kucinski
story-5

10 Things C8 Corvette Owners Hate (But Won't Tell You)

 Joe Kucinski
story-6

10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

 Brett Foote
story-7

Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

 Joe Kucinski
story-8

Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!

 Michael S. Palmer
story-9

5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!

 Joe Kucinski




All times are GMT -4. The time now is 12:15 PM.

story-0
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-1
2027 Corvette vs The World: Every Model vs Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-20 17:58:41


VIEW MORE
story-2
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE
story-3
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE
story-4
2027 Corvette Buyer's Guide: Everything You Need to Know!

Slideshow: 2027 Corvette buyer's guide

By Joe Kucinski | 2026-04-17 16:41:08


VIEW MORE
story-5
10 Things C8 Corvette Owners Hate (But Won't Tell You)

Slideshow: 10 things C8 Corvette owners hate, but won't tell you.

By Joe Kucinski | 2026-04-01 18:36:07


VIEW MORE
story-6
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

Slideshow: Should you add one of these incredible Corvettes to your garage?

By Brett Foote | 2026-04-01 18:14:05


VIEW MORE
story-7
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

Slideshow: Every Corvette Grand Sport explained

By Joe Kucinski | 2026-03-26 07:13:44


VIEW MORE
story-8
Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!

Slideshow: Breaking down the 2027 Grand Sport, Grand Sport X, Stingray, and LS6 V8.

By Michael S. Palmer | 2026-03-26 13:48:45


VIEW MORE
story-9
5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!

Slideshow: 5 reasons bad drivers crash sports cars & 5 ways to avoid a costly shame!

By Joe Kucinski | 2026-03-25 16:32:55


VIEW MORE