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

Alternator upgrade 1989 convertible

Thread Tools
 
Search this Thread
 
Old Jan 27, 2022 | 10:45 PM
  #1  
Devil's Cut's Avatar
Devil's Cut
Thread Starter
7th Gear
 
Joined: Oct 2021
Posts: 7
Likes: 1
Default Alternator upgrade 1989 convertible

Hello, looking to upgrade alternator from stock. Have seen 200 and 250 amp models available. What other mods would be required to up the amps? May go to dual batteries if needed.
Several stereo amplifiers and lots of lighting if you are wondering

Thank You.
Reply
Old Jan 29, 2022 | 05:00 PM
  #2  
wilcar's Avatar
wilcar
Drifting
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Mar 2006
Posts: 1,263
Likes: 188
From: Wabasha Mn
Default

Originally Posted by Devil's Cut
Hello, looking to upgrade alternator from stock. Have seen 200 and 250 amp models available. What other mods would be required to up the amps? May go to dual batteries if needed.
Several stereo amplifiers and lots of lighting if you are wondering

Thank You.
You better go to a professional auto stereo shop and find out what you are getting yourself into. Or do like some of us do and install a nice loud exhaust system for our music enjoyment!! No big alternator, dual batteries, heavy wiring, or 3 fire extinguishers required!!

Last edited by wilcar; Jan 29, 2022 at 07:29 PM.
Reply
Old Feb 5, 2022 | 12:05 AM
  #3  
coupeguy2001's Avatar
coupeguy2001
Le Mans Master
15 Year Member
 
Joined: Sep 2006
Posts: 6,050
Likes: 147
From: Phoenix AZ
2021 C4 of the Year - Modified Finalist
Default Alternator

Try using an Alternator from a LT1 car, such as a 94.
harness plugs in with no mofification, the battery lead is the right length, and all u have to do to make it work is file the top alternator bracket a little wider go fit the later alternator.
benefits:
more segments, and charges at idle.
more amps
looks great
hood closes!!
they are relatively inexpensive.
you can get a used one for around $75-$100
Reply

Get notified of new replies

To Alternator upgrade 1989 convertible





All times are GMT -4. The time now is 09:10 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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