C4 General Discussion General C4 Corvette Discussion not covered in Tech

Need help with wheels

Thread Tools
 
Search this Thread
 
Old Mar 10, 2009 | 12:26 PM
  #1  
Corn Nova's Avatar
Corn Nova
Thread Starter
2nd Gear
 
Joined: Mar 2009
Posts: 2
Likes: 0
Default Need help with wheels-READY TO PULL TRIGGER

I tried a search but didn't come up with anything. If there is a thread already for this, please post it.

I have a 1994 coupe with 8.5" wide fronts and 9.5" wide rears. I am wanting to go with new wheels. 17" or 18" diameter. My question is fitment.
1) I think you can run 9.5" all the way around, true?
2) If you can run 9.5" on the front, what offset would be needed? I think stock is 56mm front and rear, but that is with 8.5/9.5. What would the front be with a 9.5?

Thanks in advance, and sorry if this has been beat to death.
Chad.

Last edited by Corn Nova; Mar 10, 2009 at 05:32 PM.
Reply
Old Mar 10, 2009 | 12:39 PM
  #2  
Kubs's Avatar
Kubs
Le Mans Master
15 Year Member
Community Builder
Community Favorite
Top Answer: 5
 
Joined: Oct 2007
Posts: 9,687
Likes: 3,440
From: Akron Ohio
2025 Corvette of the Year Finalist - Modified
2024 C5 of the Year Winner - Modified
2023 C5 of the Year Finalist - Modified
2022 C5 of the Year Finalist - Modified
St. Jude Donor '09-'10-'11
Default

Yes a 9.5 will fit fine up front with a 56 mm offset. On 88-90 C4s the wheels were 17x9.5 all around with a 56 mm offset from the factory.

Reply
Old Mar 10, 2009 | 03:02 PM
  #3  
WW7's Avatar
WW7
Le Mans Master
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Aug 2007
Posts: 8,735
Likes: 412
From: WV
Default

One thing you might want to know before you buy. Expect the car to wander more, having wider wheels up front make it follow the road groves more causing it to wander side to side more. Not really a big problem but you do have to correct with the steering wheel more an watch your driving more closely...WW
Reply
Old Mar 10, 2009 | 04:44 PM
  #4  
Corn Nova's Avatar
Corn Nova
Thread Starter
2nd Gear
 
Joined: Mar 2009
Posts: 2
Likes: 0
Default

Okay, I'm ready to pull the trigger. I just want to be sure this will work.
1993 (not 94 as stated earlier) Coupe
18x9.5 front and rear +50mm offset
275/35/18 front and rear

I'm thinking the 6mm less offset will push the wheel out 1/4". Will this clear without any issues?

Sorry for the newb q's. I'm new to Corvettes.
Reply
Old Mar 10, 2009 | 06:24 PM
  #5  
mrmtrtrnd's Avatar
mrmtrtrnd
Race Director
Supporting Lifetime
10 Year Member
 
Joined: Sep 2008
Posts: 10,777
Likes: 5
From: Wichita Ks
Default

I have a 93 with 9.5 with 275/40 all the way around and the factory offset. I've seen other C4s that were running 18s all the way around but I don't know what the offset was. Has your car been lowered or at factory ride height, that could make a difference. If your buying from one of the vender's that deal in vettes a lot should know what would fit. I hope someone else with more info on this jumps in on this post.
Reply

Get notified of new replies

To Need help with wheels





All times are GMT -4. The time now is 03:41 PM.

story-0
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-1
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-2
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-3
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-4
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-5
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-6
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-7
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-8
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-9
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE