what he said. Also, I have tried using Power Master and it still couldn't keep battery charged. So I kept the OEM and had it rewound to have greater output. No problems since. Cheers!!!
High Output Alternator
Thread Starter
Heel & Toe
Joined: Feb 2016
Posts: 21
Likes: 1
From: Rancho Cordova, CA
High Output Alternator
Hi Guys, I have been reading many different threads and was looking for a little advice. I have added after market lights from Sharp Lighting Innovations, JVC touchscreen stereo, and a Skar 800 amp and 12 inch subwoofer and I killed one battery, probably because I didn't remove the negative once while doing installation, and it seems like when the car goes to idle the charge drops to the 12's and 13's at times.
So I am going with a high output alternator and was wondering if any one had any advice on Amps or Manufacturers. Also I was looking at the 220amp from Powermaster at Summit Racing.
https://www.summitracing.com/parts/pwm-48969
Any thoughts would be appreciated.
So I am going with a high output alternator and was wondering if any one had any advice on Amps or Manufacturers. Also I was looking at the 220amp from Powermaster at Summit Racing.
https://www.summitracing.com/parts/pwm-48969
Any thoughts would be appreciated.
Safety Car
Joined: Mar 2017
Posts: 3,767
Likes: 940
From: Orlando Florida
Safety Car
Joined: Jan 2019
Posts: 4,308
Likes: 3,455
From: Somewhere, Florida
St. Jude Donor '20-'21-'22-'23-'24
I have an AutoTech Engineering 320 amp unit. No charge fault light. No issues. Works just fine. Been in my car for over a year with 3800w of stereo.
Burning Brakes
Joined: Feb 2022
Posts: 818
Likes: 235
From: Bakersfield, CA
Burning Brakes
Joined: Feb 2022
Posts: 893
Likes: 986
From: NW Burbs of Chi-Town
2025 C5 of the Year Finalist - Modified
You can call these guys and they can tell you if they can boost the output of your existing C5 Alternator. This place has been in business since 1954. They may be able to build you one and ship it for an outright sale? If nothing else can steer you towards a solution. Give Larry a call.
https://www.mgautoelectric.com/auto-...c-part-service
https://www.mgautoelectric.com/auto-...c-part-service
Le Mans Master
Joined: Feb 2021
Posts: 6,486
Likes: 4,330
From: Florida
2025 Corvette of the Year Finalist - Unmodified
2024 C5 of the Year Winner- Unmodified
2022 C5 of the Year Finalist - Unmodified
You can call these guys and they can tell you if they can boost the output of your existing C5 Alternator. This place has been in business since 1954. They may be able to build you one and ship it for an outright sale? If nothing else can steer you towards a solution. Give Larry a call.
https://www.mgautoelectric.com/auto-...c-part-service
https://www.mgautoelectric.com/auto-...c-part-service
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski