C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

18" wheels. Good or bad?

Thread Tools
 
Search this Thread
 
Old Sep 1, 2003 | 03:09 PM
  #1  
McShagger's Avatar
McShagger
Thread Starter
Safety Car
10 Year Member
 
Joined: Jul 2001
Posts: 3,833
Likes: 0
From: Orange County California
Default 18" wheels. Good or bad?

Im looking to get new wheels and the selection in the 17 x9.5s is t=not that interesting. I may just end up getting ZR1 wheels, but I like these too:



They are 18X8.5 5-120.65 30S wheels and I am wondering if they will fit my '92. I am also concerned whether its a good idea or not. What is the consensus on this? What are the advantages of 18" wheels? What are the disadvantages?

Thanks! :steering:
Reply
Old Sep 1, 2003 | 03:20 PM
  #2  
atotalnincompoop's Avatar
atotalnincompoop
Race Director
10 Year Member
 
Joined: Mar 2002
Posts: 12,968
Likes: 0
Default Re: 18" wheels. Good or bad? (McShagger)

i have 18"ers on my '85, with 295 bfg's
they work great :yesnod:
Reply
Old Sep 1, 2003 | 06:01 PM
  #3  
dbwade36's Avatar
dbwade36
Drifting
10 Year Member
 
Joined: Aug 2002
Posts: 1,857
Likes: 0
From: Yakima WA
Default Re: 18" wheels. Good or bad? (atotalnincompoop)

I have 275/40/18's on rear of my 86 & they work great. I like the way the car has a slightly "raked" look, (265/40/17's on front) & the grip is sooo much better than stock 16's.
Reply
Old Sep 1, 2003 | 06:03 PM
  #4  
LD85's Avatar
LD85
Race Director
25 Year Member
 
Joined: Feb 1999
Posts: 12,772
Likes: 17
From: Indianapolis IN
Default Re: 18" wheels. Good or bad? (dbwade36)

18's are nice, I woudl do the 18's if I did it over again!
Reply
Old Sep 1, 2003 | 06:09 PM
  #5  
65Z01's Avatar
65Z01
Team Owner
20 Year Member
 
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Default Re: 18" wheels. Good or bad? (McShagger)

Pros:
-they look fine
-they corner better due to stiffer side walls
Cons:
-they won't hook up as well due to narrower side walls
-you may get more "wander" on uneven roads due to wider tires
Reply
Old Sep 1, 2003 | 06:11 PM
  #6  
BAM92's Avatar
BAM92
Safety Car
15 Year Member
 
Joined: May 2003
Posts: 4,283
Likes: 0
From: Houston Texas
Default Re: 18" wheels. Good or bad? (ld85)

18x8.5 is too narrow for a 275. Need atleast a 9 inch wide wheel for that tire. Find a wheel that is atleast 9 or 9.5. That wheel would look funny with a 265 on it on your car. Too narrow.
Reply
Old Sep 1, 2003 | 06:20 PM
  #7  
McShagger's Avatar
McShagger
Thread Starter
Safety Car
10 Year Member
 
Joined: Jul 2001
Posts: 3,833
Likes: 0
From: Orange County California
Default Re: 18" wheels. Good or bad? (BAM92)

That wheel says it takes a 275 35 18 tire.
Reply
Old Sep 1, 2003 | 06:22 PM
  #8  
Mr Mojo's Avatar
Mr Mojo
Elite Torch Red Member
Supporting Lifetime Gold
25 Year Member
 
Joined: Sep 1999
Posts: 57,805
Likes: 23
From: Exit 89 GSP,Lakewood,NJ The Land Of Mojo
Cental/South NJ Events Coordinator
CI 1-2-3-4-5-6-7-8-9-10-11-12 Vet
CI-II Burnout & Drag Champ
St. Jude Donor '03-'04-'05-'06-'07
Default Re: 18" wheels. Good or bad? (McShagger)

see my reply to your post in "general"
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-1

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-2

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-3

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-4

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-5

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-6

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-7

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-8

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-9

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
Old Sep 1, 2003 | 06:57 PM
  #9  
=Agent-Smith='s Avatar
=Agent-Smith=
Instructor
 
Joined: Jul 2003
Posts: 132
Likes: 0
Default Re: 18" wheels. Good or bad? (65Z01)

Pros:
-they look fine
-they corner better due to stiffer side walls
Cons:
-they won't hook up as well due to narrower side walls
-you may get more "wander" on uneven roads due to wider tires
Decreased gas mileage
Reply
Old Sep 1, 2003 | 07:19 PM
  #10  
DieL's Avatar
DieL
Melting Slicks
 
Joined: Mar 2003
Posts: 2,472
Likes: 0
From: Toronto ONTARIO
Default Re: 18" wheels. Good or bad? (=Agent-Smith=)

Pros:
-they look fine
-they corner better due to stiffer side walls
Cons:
-they won't hook up as well due to narrower side walls
-you may get more "wander" on uneven roads due to wider tires

Decreased gas mileage
if the overall diameter is slightly taller you will probably revv slightly lower on the highway assuming you are at the same speed... and get better gas mileage. if the diameter is smaller... worse mileage.

if the tire is wider than the original tire than fuel mileage may decrease ( more friction ).

8.5 sounds real narrow. base vettes use the 245s on 17s up front and smaller will give you better steering feel. I dunno about putting a 275/35/18 on a 8.5 though. I had that size on 9.5s and the tires kinda looked too fat (for my taste anyways). WHat will happen is more of the tread will end up not touching the ground- contact patch and if you do high speed cornering you will most definitely feel the tire flexing on the rim.

Oh.. and they dont look Fine... they look Awesome! ive never seen those wheels b4. :cheers:
Reply
Old Sep 1, 2003 | 09:04 PM
  #11  
FrankLT4CE's Avatar
FrankLT4CE
Racer
 
Joined: Sep 2001
Posts: 259
Likes: 0
From: Pontiac IL
Default Re: 18" wheels. Good or bad? (McShagger)

One disadvantage that no one mentioned is the extra weight of the 18 inch tires and wheels. It is important to keep rotating unsprung weight as low as possible for ultimate performance. Weight that rotates at axle speed is about 3 times as important as general or sprung weight. FrankLT4CE :chevy
Reply
Old Sep 1, 2003 | 09:07 PM
  #12  
JJ 86's Avatar
JJ 86
Safety Car
20 Year Member
All Eyes On Me
Photogenic
Liked
 
Joined: Feb 2003
Posts: 3,849
Likes: 95
From: Springfield MO
Default Re: 18" wheels. Good or bad? (McShagger)

18" wheels look very :cool:
:cheers:
Reply
Old Sep 1, 2003 | 10:05 PM
  #13  
TheCorvetteKid's Avatar
TheCorvetteKid
Drifting
20 Year Member
 
Joined: May 2002
Posts: 1,581
Likes: 2
From: The Motor City
Default Re: 18" wheels. Good or bad? (JJ 86)

I think the question that is subtly being asked is: what about the potential for wheel damage due to pot-holes, bumps, expansion joints, etc... by going from 17" to 18"?

I know that 17" Corvette wheels take a severe beating during regular daily use since there isn't much tire side-wall to absorb big bumps. I've already refinised 2 sets of 17" Corvette wheels (1989 and 1990) which prove it! I can only imagine what it must be like a set of 18" wheels.

So all of you guys with 18" wheels on all four corners - any problems (or increased problems) with bent/damaged wheels?

Don't get me wrong - I think 18" wheels look AWESOME on C4s!
Reply
Old Sep 1, 2003 | 10:19 PM
  #14  
ROME's Avatar
ROME
Racer
20 Year Member
 
Joined: Jan 2002
Posts: 473
Likes: 8
From: Shreveport LA
Default Re: 18" wheels. Good or bad? (McShagger)

:thumbs:
Reply
Old Sep 1, 2003 | 11:49 PM
  #15  
Darkness's Avatar
Darkness
Le Mans Master
20 Year Member
 
Joined: Apr 2002
Posts: 7,281
Likes: 5
From: Boston
Default Re: 18" wheels. Good or bad? (ROME)

Those CCW are way :cool: but then again Fikse's look :cool: too.
Reply
Old Sep 2, 2003 | 01:00 AM
  #16  
mistaben's Avatar
mistaben
Burning Brakes
 
Joined: Aug 2003
Posts: 944
Likes: 0
From: Mesa Az
Default Re: 18" wheels. Good or bad? (Darkness)

hmm :( i may be going against the consensus here but i like the stock wheels alot better. its just something about that corvette logo i think.
Reply
Old Sep 2, 2003 | 03:13 AM
  #17  
JCAIRE2's Avatar
JCAIRE2
Le Mans Master
 
Joined: Jun 2002
Posts: 6,097
Likes: 0
From: High Plains Drifter Fayetteville, AR
Default Re: 18" wheels. Good or bad? (McShagger)

Increase tire prices :jester
Reply

Get notified of new replies

To 18" wheels. Good or bad?

Old Sep 2, 2003 | 08:23 AM
  #18  
BIG JIM 54's Avatar
BIG JIM 54
Burning Brakes
 
Joined: Jul 2002
Posts: 871
Likes: 0
From: Costa Mesa CA
Default Re: 18" wheels. Good or bad? (McShagger)

Try ROH 17".

If you want something few other Vette owners have (certainly not possible with the ZR1 repos) and the best looking wheel around, look below.

18" wheels will work great but I doubt if you will notice the diff when driving. And if you think the last time you bought tires for your Vette was a lot of money, you are opening yourself up to a whole new world of "expensive tires" that you won't believe.

BIG JIM
Reply
Old Sep 2, 2003 | 09:28 AM
  #19  
Hardcorvette's Avatar
Hardcorvette
Melting Slicks
20 Year Member
 
Joined: Sep 2001
Posts: 3,420
Likes: 0
From: Lancaster County PA
St. Jude Donor '06-'07-'08-'09-'10
Default Re: 18" wheels. Good or bad? (FrankLT4CE)

One disadvantage that no one mentioned is the extra weight of the 18 inch tires and wheels. It is important to keep rotating unsprung weight as low as possible for ultimate performance. Weight that rotates at axle speed is about 3 times as important as general or sprung weight. FrankLT4CE :chevy
I'm running GM Y2K wheels (18" rear) on my '96, see sig. With tires, the 18's are almost 2lbs. lighter than my stock wheel/tires. :yesnod:
Reply
Old Sep 2, 2003 | 09:35 AM
  #20  
Jimbo93's Avatar
Jimbo93
Drifting
 
Joined: Sep 2002
Posts: 1,269
Likes: 0
From: Swanzey N. H.
Default Re: 18" wheels. Good or bad? (McShagger)

:thumbs: If that's the look you want, but not for me.
Reply



All times are GMT -4. The time now is 12:14 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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
story-9
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE