C3 General General C3 Corvette Discussion not covered in Tech
Sponsored by:
Sponsored by:

MSD Coil degrade?

Thread Tools
 
Search this Thread
 
Old Aug 21, 2012 | 05:26 PM
  #1  
vetten76's Avatar
vetten76
Thread Starter
Drifting
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2009
Posts: 1,385
Likes: 86
From: San Diego CA.
Default MSD Coil degrade?

10 or 15 years ago, I replaced the stock coil in the distributer in my 76. I felt the power and throttle response difference right off the bat. Does a modern MSD high output coil degrade in time like the stock GM coil did? I have a ZZ-4 with MSD wires, 6AL box and the GM distributer that came with the ZZ-4.
Reply
Old Aug 21, 2012 | 05:59 PM
  #2  
Roughrider's Avatar
Roughrider
Melting Slicks
 
Joined: Mar 2007
Posts: 2,100
Likes: 12
From: Frederick Maryland
Default

My experience is that aftermarket high performance coils, of whatever manufacturer, don't last as long as the original GM HEI coil. I'm not sure the aftermarket coils are better in any regard.
Reply
Old Aug 21, 2012 | 08:50 PM
  #3  
oldalaskaman's Avatar
oldalaskaman
Le Mans Master
10 Year Member
 
Joined: Aug 2010
Posts: 9,272
Likes: 17
Default

10 or 15 years?
Reply
Old Aug 21, 2012 | 09:24 PM
  #4  
vetten76's Avatar
vetten76
Thread Starter
Drifting
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2009
Posts: 1,385
Likes: 86
From: San Diego CA.
Default

Originally Posted by oldalaskaman
10 or 15 years?
The older I get, the harder it is to remember how long something has been. Closer to 15 years ago. I've worked on this project for 16 years now.... I do remember how dramatic the power increase was!
Reply
Old Aug 21, 2012 | 09:33 PM
  #5  
oldalaskaman's Avatar
oldalaskaman
Le Mans Master
10 Year Member
 
Joined: Aug 2010
Posts: 9,272
Likes: 17
Default

wasnt bein sarcastic, 5-8 years on a coil no matter who makes it is pretty good. they heat up and cool down...alot , and over time build up resistance and break down inside
Reply
Old Aug 22, 2012 | 12:58 AM
  #6  
vetten76's Avatar
vetten76
Thread Starter
Drifting
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2009
Posts: 1,385
Likes: 86
From: San Diego CA.
Default

Originally Posted by oldalaskaman
wasnt bein sarcastic, 5-8 years on a coil no matter who makes it is pretty good. they heat up and cool down...alot , and over time build up resistance and break down inside
Now that's good insight. I know you weren't being sarcastic. I had the car dynoed and they didn't say anything about replacing anything. What you said though makes sense. Thanks......
Reply

Get notified of new replies

To MSD Coil degrade?





All times are GMT -4. The time now is 03:45 PM.

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