CorvetteForum - Chevrolet Corvette Forum Discussion

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

L98 Help

Thread Tools
 
Search this Thread
 
Old Aug 23, 2018 | 05:58 PM
Share
  #1  
grantar2's Avatar
grantar2
Thread Starter
Burning Brakes
15 Year Member
 
Joined: Mar 2009
Posts: 830
Likes: 6
Default L98 Help
Team, looking for some help with a problem. The A/C compressor bracket on my 1990 C4 L98 Z51 Coupe broke. Apparently this part is an out of stock unicorn which is proving hard to find on the used market. Have a bunch of inquires out. The normal alternative (though not desirable in a C4) is to delete the A/C system, however the pulley tensioner is mounted to this bracket which eliminates that option. I can't find the info, was the C4 offered with out A/C using a different bracket. Is there anyone here on the forum that has eliminated the A/C for say track purposes on an L98 and done something other than use the A/C bracket for the pulley tensioner?

Thanks
Reply
0
Old Aug 23, 2018 | 07:11 PM
Share
  #2  
billschroeder5842's Avatar
billschroeder5842
Zen Vet Master Level VII
Supporting Gold
Veteran: Navy
10 Year Member
Liked
Loved
 
Joined: Mar 2016
Posts: 5,218
Likes: 1,174
From: Southlake, TX
Default
Is a 90 different from previous years?
https://www.ebay.com/itm/Chevrolet-8...EAAOSwlrJa2udr
https://www.ebay.com/itm/85-Corvette...ty!76092!US!-1
https://www.ebay.com/itm/85-86-87-CO...YAAOSwMsVXjXrs
Reply
0
Old Aug 23, 2018 | 07:36 PM
Share
  #3  
confab's Avatar
confab
Melting Slicks
 
Joined: Nov 2013
Posts: 3,451
Likes: 336
From: Greater Cincinnati Area.
Default
Ask in the used parts section.
Reply
0
Old Aug 23, 2018 | 07:44 PM
Share
  #4  
RWDsmoke's Avatar
RWDsmoke
Drifting
20 Year Member
Active Streak: 30 Days
Active Streak: 60 Days
Liked
 
Joined: Jan 2005
Posts: 1,353
Likes: 324
From: San Antonio Tx
Default
i
It's aluminum. It can be welded, a good welder can make it just as strong as a new one.
Reply
0
Old Aug 24, 2018 | 11:28 AM
Share
  #5  
grantar2's Avatar
grantar2
Thread Starter
Burning Brakes
15 Year Member
 
Joined: Mar 2009
Posts: 830
Likes: 6
Default
1990 shares parts with the 1988 - 1991
Reply
0
Old Aug 24, 2018 | 09:45 PM
Share
  #6  
aklim's Avatar
aklim
Team Owner
Active Streak: 60 Days
Community Builder
Liked
Loved
 
Joined: Jul 2004
Posts: 28,424
Likes: 3,276
From: Hartford WI
Default
Before we go there, why did it break? Fatigue or did you not have all 3 braces in place? Ask me how I know.
Reply
0
Old Aug 24, 2018 | 10:37 PM
Share
  #7  
skinnyt's Avatar
skinnyt
Intermediate
 
Joined: Jul 2018
Posts: 46
Likes: 2
From: statesville,north carolina
Default
Originally Posted by grantar2
Team, looking for some help with a problem. The A/C compressor bracket on my 1990 C4 L98 Z51 Coupe broke. Apparently this part is an out of stock unicorn which is proving hard to find on the used market. Have a bunch of inquires out. The normal alternative (though not desirable in a C4) is to delete the A/C system, however the pulley tensioner is mounted to this bracket which eliminates that option. I can't find the info, was the C4 offered with out A/C using a different bracket. Is there anyone here on the forum that has eliminated the A/C for say track purposes on an L98 and done something other than use the A/C bracket for the pulley tensioner?

Thanks
take it to welding shop
Reply
0
Old Aug 25, 2018 | 03:43 PM
Share
  #8  
grantar2's Avatar
grantar2
Thread Starter
Burning Brakes
15 Year Member
 
Joined: Mar 2009
Posts: 830
Likes: 6
Default
Originally Posted by aklim
Before we go there, why did it break? Fatigue or did you not have all 3 braces in place? Ask me how I know.
All braces have been in place, however the car spent 22 seasons competing in Autocross with 4 championships (Cal Club Region SCCA) and accumulated 135K miles before being retired and rebuilt in 2014. My guess is fatigue but really don't know. Would like to find a replacement part, but can have it welded if need be. Just means it takes up a space at my mechanic for an extended time. Live in a condo these days and can't work on the car a home anymore.
't
Reply
0
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

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

 Michael S. Palmer
story-1

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

 Joe Kucinski
story-2

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

 Joe Kucinski
story-3

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

 Verdad Gallardo
story-4

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

 Joe Kucinski
story-5

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

 Verdad Gallardo
story-6

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-7

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

 Michael S. Palmer
story-8

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-9

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

 Michael S. Palmer
Old Aug 25, 2018 | 09:17 PM
Share
  #9  
aklim's Avatar
aklim
Team Owner
Active Streak: 60 Days
Community Builder
Liked
Loved
 
Joined: Jul 2004
Posts: 28,424
Likes: 3,276
From: Hartford WI
Default
Originally Posted by grantar2
All braces have been in place, however the car spent 22 seasons competing in Autocross with 4 championships (Cal Club Region SCCA) and accumulated 135K miles before being retired and rebuilt in 2014. My guess is fatigue but really don't know. Would like to find a replacement part, but can have it welded if need be. Just means it takes up a space at my mechanic for an extended time. Live in a condo these days and can't work on the car a home anymore.
't
https://www.ebay.com/itm/1988-91-Cor...p2047675.l2557

I think I have a spare one. PM me if you want it. Make me an offer I cannot refuse
Reply
0
Old Aug 26, 2018 | 03:49 PM
Share
  #10  
grantar2's Avatar
grantar2
Thread Starter
Burning Brakes
15 Year Member
 
Joined: Mar 2009
Posts: 830
Likes: 6
Default
Originally Posted by aklim
https://www.ebay.com/itm/1988-91-Cor...p2047675.l2557

I think I have a spare one. PM me if you want it. Make me an offer I cannot refuse
Thank you for the link, that wasn't there Friday when I checked. Are you the eBay seller because I will buy that one it's a little more than I would have guessed at the start but not at all unfair, or did you have one you wanted to sell separately. The one on eBay looks really clean and solid almost like new old stock.
Reply
0
Old Aug 26, 2018 | 04:27 PM
Share
  #11  
aklim's Avatar
aklim
Team Owner
Active Streak: 60 Days
Community Builder
Liked
Loved
 
Joined: Jul 2004
Posts: 28,424
Likes: 3,276
From: Hartford WI
Default
Originally Posted by grantar2
Thank you for the link, that wasn't there Friday when I checked. Are you the eBay seller because I will buy that one it's a little more than I would have guessed at the start but not at all unfair, or did you have one you wanted to sell separately. The one on eBay looks really clean and solid almost like new old stock.
No I am not the seller of the NOS unit. Mine is a used unit. I have a used one.
Reply
0

Get notified of new replies

To L98 Help

Back to Subforum
C4 Tech/Performance
View Next Unread
It's on!!! Willcox Weekend Special 20 off Sale Starts Now!




Click for Advanced Search
Reply Closed Thread Share
Forum Jump
Trending Topics

All times are GMT -4. The time now is 08:36 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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
story-8
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-9
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