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

New member

Thread Tools
 
Search this Thread
 
Old Jan 21, 2025 | 10:05 AM
  #1  
martyC4's Avatar
martyC4
Thread Starter
Heel & Toe
Liked
Loved
Community Favorite
 
Joined: Dec 2024
Posts: 15
Likes: 11
From: Illinois
Default New member

Hi everyone. A month ago I purchased a1990 base convertible, dark red Corvette with 102,000 miles off of Bring a Trailer. $6,600. Has a new top, body is in great shape and paint is also very good. Only a few problems that I have to contend with. Brakes were shot and I believe the original shocks were still on it. Those have been replaced and made a huge difference, is great to be able to stop. Tires are 19 years old so tires and new rims are ordered and will be installed shortly. The only thing on the inside that doesn't work is the tach, it reads way high most of the time. I have to get that figured out. If any of you have any ideas on a solution for that I'd love to hear it. All fluids will be changed in the next month. I'll take good care of it but it will be driven, not sitting around! That's what ruins these cars. I can't wait until summer and have the top down!!
Reply
Old Jan 21, 2025 | 10:17 AM
  #2  
dmwphoto's Avatar
dmwphoto
Racer
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2011
Posts: 281
Likes: 210
From: Myrtle Beach, SC
Default

welcome! pictures?
Reply
Old Jan 21, 2025 | 12:33 PM
  #3  
Gixxerman's Avatar
Gixxerman
Moderator
15 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2010
Posts: 15,280
Likes: 4,211
From: Northern Illinois
2023 Corvette of the Year Winner - Modified
2022 C7 of the Year Winner - Modified
St. Jude Donor '18 thru '25
Default

Welcome, your inquiries going beyond what introductions can handle, moving you here for further discussion, good luck
Reply
Old Jan 22, 2025 | 07:48 AM
  #4  
slammin's Avatar
slammin
Burning Brakes
All Eyes On Me
Liked
Loved
Community Favorite
 
Joined: May 2018
Posts: 942
Likes: 243
From: Fruita CO
Default

Welcome to the forum! Your tach problem is fairly common. You probably have a bad resistor. Visit Batee.com for repair info. They have tutorials to diagnose and repair most C4 electronic gremlins. They sell parts for DIYers and have an inhouse repair service as well. Tach repair is on the list of projects for my 91.
Reply
Old Jan 25, 2025 | 01:43 AM
  #5  
iceman2003's Avatar
iceman2003
Pro
Supporting Lifetime
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Mar 2006
Posts: 522
Likes: 143
From: Caribbean/Florida
Default

Welcome to the best car hobby website, PERIOD! Enjoy your new car... Can you list your options...? Thanks and Cheers...
Reply
Old Jan 25, 2025 | 02:09 AM
  #6  
WVZR-1's Avatar
WVZR-1
Team Owner
20 Year Member
Veteran: Army
Active Streak: 30 Days
Liked
 
Joined: Sep 2003
Posts: 25,406
Likes: 2,744
Default

A '90 'vert - that's a very good choice. Tach issue is to be expected. You mentioned tires and wheels. You're replacing the OE or it didn't have OE when purchased?
Reply
Old Jan 25, 2025 | 10:15 AM
  #7  
martyC4's Avatar
martyC4
Thread Starter
Heel & Toe
Liked
Loved
Community Favorite
 
Joined: Dec 2024
Posts: 15
Likes: 11
From: Illinois
Default

It has auto climate control, an after market radio, cruise, sport seats and 102,000 miles. It runs great. I just had all new brakes and rotors installed plus new tires and new wheels. One of the original wheels had a dent from hitting a curb I guess. Future remedies will be transmission and power steering fluid changes. I have to replace the seals on the convertible top. I have an after market radio getting installed on Tuesday with car play and all the bells and whistles. This car is amazing and I can't wait to get the top down! And, I thank everyone on here with there tips and knowledge. I'm going to drive this car, not park it, because I want to fully enjoy experience.
The new wheels and tires.
The new wheels and tires.
Reply
Old Jan 25, 2025 | 10:18 AM
  #8  
martyC4's Avatar
martyC4
Thread Starter
Heel & Toe
Liked
Loved
Community Favorite
 
Joined: Dec 2024
Posts: 15
Likes: 11
From: Illinois
Default

Originally Posted by WVZR-1
A '90 'vert - that's a very good choice. Tach issue is to be expected. You mentioned tires and wheels. You're replacing the OE or it didn't have OE when purchased?
It had the OE. I know many like to keep their vets stock but I don't like those wheels and tend to like chrome. They look great with the dark red.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

5 Best & 5 Most Overrated Corvette Track Packages of All Time!

 Joe Kucinski
story-1

Every 2027 Corvette Engine Explained

 Joe Kucinski
story-2

Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

 Verdad Gallardo
story-3

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-4

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-5

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-6

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-7

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

 Joe Kucinski
story-8

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-9

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

 Michael S. Palmer
Old Jan 28, 2025 | 08:33 PM
  #9  
kkupec02's Avatar
kkupec02
Le Mans Master
Active Streak: 30 Days
Community Builder
Community Influencer
Photogenic
 
Joined: Nov 2021
Posts: 5,144
Likes: 212
From: Bristol, Connecticut
Default

Welcome!!
Reply
Old Jan 28, 2025 | 10:14 PM
  #10  
jazfe's Avatar
jazfe
Pro
15 Year Member
Veteran: Air Force
Liked
Community Favorite
 
Joined: Feb 2009
Posts: 655
Likes: 164
From: Vancouver Washington
Default

Welcome
Drive the wheels off it!
I get in mine every chance I get. Just to annoy the neighbors if nothing else.
Reply

Get notified of new replies

To New member





All times are GMT -4. The time now is 04:23 AM.

story-0
5 Best & 5 Most Overrated Corvette Track Packages of All Time!

Slideshow: The 5 best and 5 most overrated Corvette track packages ever.

By Joe Kucinski | 2026-06-09 12:46:45


VIEW MORE
story-1
Every 2027 Corvette Engine Explained

Slideshow: Every 2027 Corvette engine explained

By Joe Kucinski | 2026-06-09 12:16:31


VIEW MORE
story-2
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

Slideshow: A Jaguar designer's personal project imagines what a modern front-engined Corvette might look like if Chevrolet revisited the golden age of the Stingray.

By Verdad Gallardo | 2026-06-08 19:53:43


VIEW MORE
story-3
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-4
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-5
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-6
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-7
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-8
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-9
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