C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

computer controlled carb

Thread Tools
 
Search this Thread
 
Old May 16, 2005 | 02:01 PM
  #1  
gator79's Avatar
gator79
Thread Starter
Safety Car
15 Year Member
 
Joined: May 2005
Posts: 4,176
Likes: 7
From: Jennings LA
Default computer controlled carb

I have a 1981 with the computer carb, can the controls cause it to run rich? are do they have that much control. it will smoke black when you get on it. it may just need an overhaul. what other carbs will work (non computer controlled) I eventually will put a mechanical distributor also.
Reply
Old May 16, 2005 | 02:49 PM
  #2  
comp's Avatar
comp
Team Owner
10 Year Member
 
Joined: Sep 2003
Posts: 88,393
Likes: 2
From: eville in
Default

it can, find the book writen by Doug Roe, HP books it cover's them
Reply
Old May 16, 2005 | 04:01 PM
  #3  
Pauld's Avatar
Pauld
Melting Slicks
10 Year Member
 
Joined: May 2003
Posts: 2,253
Likes: 1
From: Rochester Kent
Default

Originally Posted by gator79
what other carbs will work (non computer controlled) I eventually will put a mechanical distributor also.
If you are going to stop using the computer then you have quite a choice of carbs, alot of choice. Holley, rochester, Edelbrock, BG, the list goes on
Reply
Old May 16, 2005 | 04:04 PM
  #4  
page62's Avatar
page62
Le Mans Master
 
Joined: Mar 2002
Posts: 7,456
Likes: 2
From: Coming home from Luckenbach Texas
Default

The computer controls the primary mixture only. If it's smoking black when you get on it, it sounds like the secondaries are too rich -- or something is wrong over on the secondary side...
Reply
Old May 16, 2005 | 04:55 PM
  #5  
CA-Legal-Vette's Avatar
CA-Legal-Vette
Race Director
20 Year Member
All Eyes On Me
Loved
Community Favorite
 
Joined: Jul 2004
Posts: 12,711
Likes: 329
From: Scottsdale Arizona
Default

Originally Posted by comp
it can, find the book writen by Doug Roe, HP books it cover's them
This book is a great place to start. I'm not sure that's your problem though. There is a throttle position sensor that allows the carb to go full rich when you open it up anyways so I'm not sure that you can blame the smoke on th carb. (Oops. Sorry Page; you said the same thing while I was typing my response).

It takes a little learning to get good at working these computer M/C carbs but they work pretty well when you do.

Paul is right though. If you plan to replace it with a non-computer one and replace your distributor as well (you'll have to as removing the computer will remove your spark advance), then you have many choices. Remember though. If you remove the computer you'll lose most of the emmision controls and will make the car not smog legal in many states, especially CA. Make sure that you know your local smog rules before ripping these all out.
Reply

Get notified of new replies

To computer controlled carb





All times are GMT -4. The time now is 07:37 AM.

story-0
2027 Chevrolet Silverado 1500 First Look: Everything You NEED to Know!

Slideshow: Is the 2027 Chevrolet Silverado 1500 the best Silverado yet?

By Michael S. Palmer | 2026-06-16 08:01:12


VIEW MORE
story-1
5 Best & 5 Worst Corvette Daily Drivers

Slideshow: 5 best and 5 worst Corvette daily drivers

By Joe Kucinski | 2026-06-15 10:32:13


VIEW MORE
story-2
The Headlights of Every Corvette Generation Explained

Slideshow: The headlights of every Corvette generation explained

By Joe Kucinski | 2026-06-15 10:17:14


VIEW MORE
story-3
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-4
Every 2027 Corvette Engine Explained

Slideshow: Every 2027 Corvette engine explained

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


VIEW MORE
story-5
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-6
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-7
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-8
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-9
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