81 distributor
Burning Brakes
Joined: May 2008
Posts: 1,116
Likes: 5
From: Middleburg Florida
Melting Slicks
Joined: Nov 2005
Posts: 3,323
Likes: 142
From: Green Valley Arizona
The distributor connects to the ECM via a 4 wire connector. This is the connector that is removed to set base timing. The 7 pin module inside the distributor will provide some ignition advance, enough to limp home, but the ECM is needed for full operation.
Burning Brakes
Joined: Nov 2013
Posts: 889
Likes: 13
From: Jax/St. Augustine FL
Ecklers Lists it here
Its called: Corvette Distributor Terminal Block, ACDelco, 1981-1982.
If you are missing this...get on e-Bay, I'm sure you can find one.
Safety Car
Joined: Jan 2009
Posts: 3,873
Likes: 25
#2 reason we ditch the CCC on our cars..........the engine looks like sit.
Really embarrassing to have a nice ride at the Friday night event, but can't open the hood.
Around these parts, we still have to smog our 32 year old cars. So everything has to be right.
But I asked my smog guy if I could move these components around so it looks better.
He's a cool dude.
Said if everything is still there,
Doing what it's supposed to do,
And will pass on the rollers,...........you can move this stuff all around...
So now I have AFR heads @ 10.2 comp. Performer intake etc.....
And the engine compartment looks like one from the 60's.
Wish I could post picks I 'd give you the tour.
Basically I hid every thing like smog pump, lines, wires, hoses.
And as everyone says , The CCC runs great. Your going to like it.
p.s. Tell me about the MAP trick. I need a cam to improve on the heads and stuff...........More later.
Really embarrassing to have a nice ride at the Friday night event, but can't open the hood.
Around these parts, we still have to smog our 32 year old cars. So everything has to be right.
But I asked my smog guy if I could move these components around so it looks better.
He's a cool dude.
Said if everything is still there,
Doing what it's supposed to do,
And will pass on the rollers,...........you can move this stuff all around...
So now I have AFR heads @ 10.2 comp. Performer intake etc.....
And the engine compartment looks like one from the 60's.
Wish I could post picks I 'd give you the tour.
Basically I hid every thing like smog pump, lines, wires, hoses.
And as everyone says , The CCC runs great. Your going to like it.
p.s. Tell me about the MAP trick. I need a cam to improve on the heads and stuff...........More later.
Melting Slicks
Joined: Nov 2005
Posts: 3,323
Likes: 142
From: Green Valley Arizona
ramair bryan:
The MAP trick is to replace the +5V reference voltage going to the MAP with an adjustable voltage source. I will search around to find the details and post them.
But now that I have found the vacuum leak, I am going to remove this and see how the CCC does. The cam is not that big of a cam and the CCC will likely handle it just fine.
The MAP trick is to replace the +5V reference voltage going to the MAP with an adjustable voltage source. I will search around to find the details and post them.
But now that I have found the vacuum leak, I am going to remove this and see how the CCC does. The cam is not that big of a cam and the CCC will likely handle it just fine.
Last edited by LannyL81; Jan 23, 2014 at 07:57 PM.
Drifting
Joined: Aug 2009
Posts: 1,635
Likes: 8
From: Enid Oklahoma
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,114
From: Crossville TN
Of course, 81Pilot NEVER operated his car with the CCC system being operational (based on his post from a couple of years ago). So he has no actual experience at knowing how a FUNCTIONING '81 C3 CCC system behaves.
Drifting
Joined: Aug 2009
Posts: 1,635
Likes: 8
From: Enid Oklahoma
You are correct that is why the POS came off! I got tired of trying to make it work right, I had the companents swapped in a couple of hours and have NOT had to touch them since. And all you do is sing thier praises. I have asked you , Oh king of 1981 Corvettes, many many many times, what is better about the CCC and you have not one single solitary good answer, you lie to people about mileage and driveability and start up being so much better than a non computer system, mine matches every comment you have ever made. AND I have never had to do all the incessant trouble shooting that goes along with the CCC. So the next time you chime in do it with some facts. And not your guesses. I agree when the CCC is setup properly it works good, but when it needs troubleshooting it is a huge pain in the ****! It adds no benefit, it does NOTHING better than a conventional system setup right (easier). It is too rudimentary to be of any real benefit. I will continue to say my peace on this and you will no doubt continue your rebuttles.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
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
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
Le Mans Master
Joined: Jan 2006
Posts: 9,192
Likes: 27
From: Boca Raton Florida
Hmmm...Only code shooting I had to do was to get the previously disconnected components hooked back up, set the carb up like the book says and it ran just fine until I took it apart.
I can't say that the CCC system is any better or worse than non computer parts, its just different and not all That different.
If the parts are all there its a simple thing to get them functioning as designed and save a few $ in the process.
The CCC system is perfectly capable of handling middle of the road HP improvements like a bumpier cam, duals, air cleaner and the like. You Can get more of a range of timing advance from a vac advance dizzy, but that may or may not be a problem.
I can't say that the CCC system is any better or worse than non computer parts, its just different and not all That different.
If the parts are all there its a simple thing to get them functioning as designed and save a few $ in the process.
The CCC system is perfectly capable of handling middle of the road HP improvements like a bumpier cam, duals, air cleaner and the like. You Can get more of a range of timing advance from a vac advance dizzy, but that may or may not be a problem.
Thread Starter
Intermediate
Joined: Feb 2013
Posts: 33
Likes: 0
From: Lake Placid Florida
Its funny how the same guys who talk about how great the CCC is are telling you how to test for voltage and fool the system yadayadayada.....I say jerk the crap out put in non computerized parts and forget about it, no fooling no computer nothin. Mine runs great, and it was not that expensive, dizys, even good ones are inexpensive, and a good used quad can be bought cheap and tuned. I get 20MPG highway, and I never have had to touch it since. Fires on first crank every time. We have no inspection so off came all of the smog stuff, on went headers, and out came the ugly wires for the computer. A lot cleaner engine bay in my opinion, and runs as good as any CCC car or better. The CCC is fine if thats what your after, but there are 2 sides to every coin my friend.
Team Owner
Joined: Jan 2006
Posts: 37,637
Likes: 3,114
From: Crossville TN
I have absolutely NO PROBLEM with an owner of an '81 removing the CCC system or doing any other thing to THEIR car that they wish to do.
However, I DO have a problem with folks recommending ditching useable components and systems ON OTHER FOLKS' CARS...and presenting themselves as having actual knowledge of such issues...when they really have no such knowledge or experience.
Do what you want with your car. Just don't advise OTHERS to do the same, just because you want them to....
However, I DO have a problem with folks recommending ditching useable components and systems ON OTHER FOLKS' CARS...and presenting themselves as having actual knowledge of such issues...when they really have no such knowledge or experience.
Do what you want with your car. Just don't advise OTHERS to do the same, just because you want them to....
Thread Starter
Intermediate
Joined: Feb 2013
Posts: 33
Likes: 0
From: Lake Placid Florida
I have absolutely NO PROBLEM with an owner of an '81 removing the CCC system or doing any other thing to THEIR car that they wish to do.
However, I DO have a problem with folks recommending ditching useable components and systems ON OTHER FOLKS' CARS...and presenting themselves as having actual knowledge of such issues...when they really have no such knowledge or experience.
Do what you want with your car. Just don't advise OTHERS to do the same, just because you want them to....
However, I DO have a problem with folks recommending ditching useable components and systems ON OTHER FOLKS' CARS...and presenting themselves as having actual knowledge of such issues...when they really have no such knowledge or experience.
Do what you want with your car. Just don't advise OTHERS to do the same, just because you want them to....
Thread Starter
Intermediate
Joined: Feb 2013
Posts: 33
Likes: 0
From: Lake Placid Florida
Can anyone tell me why my 81 runs fine with the 4 pin plug unplugged from the dizy?
I have bein trying to get the timing under control all the smog stuff is gone have the original
Quad4 rebuilt when I unplug the 4 pin it runs and times perfect. What will this do to the engine? The check engine light is on all the time now.
I have bein trying to get the timing under control all the smog stuff is gone have the original
Quad4 rebuilt when I unplug the 4 pin it runs and times perfect. What will this do to the engine? The check engine light is on all the time now.
Le Mans Master
Joined: Jan 2006
Posts: 9,192
Likes: 27
From: Boca Raton Florida
Can anyone tell me why my 81 runs fine with the 4 pin plug unplugged from the dizy?
I have bein trying to get the timing under control all the smog stuff is gone have the original
Quad4 rebuilt when I unplug the 4 pin it runs and times perfect. What will this do to the engine? The check engine light is on all the time now.
I have bein trying to get the timing under control all the smog stuff is gone have the original
Quad4 rebuilt when I unplug the 4 pin it runs and times perfect. What will this do to the engine? The check engine light is on all the time now.
Drifting
Joined: Aug 2009
Posts: 1,635
Likes: 8
From: Enid Oklahoma
I have absolutely NO PROBLEM with an owner of an '81 removing the CCC system or doing any other thing to THEIR car that they wish to do.
However, I DO have a problem with folks recommending ditching useable components and systems ON OTHER FOLKS' CARS...and presenting themselves as having actual knowledge of such issues...when they really have no such knowledge or experience.
Do what you want with your car. Just don't advise OTHERS to do the same, just because you want them to....
However, I DO have a problem with folks recommending ditching useable components and systems ON OTHER FOLKS' CARS...and presenting themselves as having actual knowledge of such issues...when they really have no such knowledge or experience.
Do what you want with your car. Just don't advise OTHERS to do the same, just because you want them to....
Thread Starter
Intermediate
Joined: Feb 2013
Posts: 33
Likes: 0
From: Lake Placid Florida
The 4 pin connector comes from the CCC system and controls the timing advance. There system will set without it connected, as a matter of fact you have to disconnect it to set the base timing, 8* is what the book calls for. I use 12* and then let the CCC and Dizzy runit from there, but I can't remember what the max is.
Adjusted that at the carb end? What do you think it will do to run it like that
Instructor
Joined: Aug 2010
Posts: 233
Likes: 18
From: Monrovia Md
That's what I thought had to b done also I heard 6*. That's what I used anyhow...when t plug it back in it all goes to *+^~ When I unplug it it runs fine smooth no missing no chugging idle was a little high (abot 900)
Adjusted that at the carb end? What do you think it will do to run it like that
Adjusted that at the carb end? What do you think it will do to run it like that
Not to poor on gasoline -- I keep my CCC because that is the way the car was intended and I like to keep it that way -- it is ugly, and complicated and all that, but it is a time capsule of the state of the art of the car industry in 1981. I get a lot of satisfaction on understanding and repairing a system that is significantly less obvious than older or more modern systems. Just an antique myself I guess.
Burning Brakes
Joined: Nov 2013
Posts: 889
Likes: 13
From: Jax/St. Augustine FL
Can anyone tell me why my 81 runs fine with the 4 pin plug unplugged from the dizy?
I have bein trying to get the timing under control all the smog stuff is gone have the original
Quad4 rebuilt when I unplug the 4 pin it runs and times perfect. What will this do to the engine? The check engine light is on all the time now.
I have bein trying to get the timing under control all the smog stuff is gone have the original
Quad4 rebuilt when I unplug the 4 pin it runs and times perfect. What will this do to the engine? The check engine light is on all the time now.
I agree with WAJulia - replace the guts of your distro, not too bad on the wallet and an hour’s worth of work. the 4 pin connector is the interface back to the ECM for all timing control. Disconnect it and try to set it close to 12 degrees, once you do that and plug 4 pin back up you’ll get close to 36 total degrees of timing (*if I rem correctly). Again being an 81 owner that chose to get the CCC operational, now that I have gone through every component of it, I actually love having it in place. Run's great too. Nothing is ever easy in the beginning
** And Ill say it again as well – go on ebay and get yourself a used “OTC monitor 85”, this is the Scanner for your 81. I have it and its amazing – this will cut down all of your CCC troubleshooting to minutes vs hours and playing the guessing game
Thread Starter
Intermediate
Joined: Feb 2013
Posts: 33
Likes: 0
From: Lake Placid Florida
I agree with WAJulia - replace the guts of your distro, not too bad on the wallet and an hour’s worth of work. the 4 pin connector is the interface back to the ECM for all timing control. Disconnect it and try to set it close to 12 degrees, once you do that and plug 4 pin back up you’ll get close to 36 total degrees of timing (*if I rem correctly). Again being an 81 owner that chose to get the CCC operational, now that I have gone through every component of it, I actually love having it in place. Run's great too. Nothing is ever easy in the beginning
** And Ill say it again as well – go on ebay and get yourself a used “OTC monitor 85”, this is the Scanner for your 81. I have it and its amazing – this will cut down all of your CCC troubleshooting to minutes vs hours and playing the guessing game
** And Ill say it again as well – go on ebay and get yourself a used “OTC monitor 85”, this is the Scanner for your 81. I have it and its amazing – this will cut down all of your CCC troubleshooting to minutes vs hours and playing the guessing game
