1981 Corvette....Computer Chips

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Nov 30, 2010 | 04:02 PM

#21

81pilot

Drifting

Joined: Aug 2009

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From: Enid Oklahoma

Quote:

Originally Posted by 7T1vette

Finally!! Some "real world" data to support that the CCC system is not a "dog" due to its design. Should I assume that you kept the original electro/mechanical carb, but rejetted to meet the needs of the improved engine?

Look in the archives of my posts, did I ever call it a Dog? Just wondering I can't remember.

Nov 30, 2010 | 08:23 PM

#22

7T1vette

Team Owner

Joined: Jan 2006

Posts: 37,637

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From: Crossville TN

Geez, Pilot....my comment was regarding the submission of actual experience with the '81 CCC system. It had nothing to do with you.

Dec 1, 2010 | 09:13 AM

#23

81pilot

Drifting

Joined: Aug 2009

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From: Enid Oklahoma

Quote:

Originally Posted by 7T1vette

Geez, Pilot....my comment was regarding the submission of actual experience with the '81 CCC system. It had nothing to do with you.

I was trying to be funny sorry...

Dec 1, 2010 | 09:41 AM

#24

wombvette

Le Mans Master

Joined: Jan 2000

Posts: 8,918

Likes: 27

From: New Hill NC

For 81, the Command Control Carb is nothing but a Rochester with a controlled power valve. At full throttle on the non controlled carb the vacuum actuated power valve comes in full to richen the mixture. On the command controlled carb, the electronic power valve comes in full. There is no difference in WOT operation, period.

Dec 10, 2010 | 11:20 AM

#25

81pilot

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From: Enid Oklahoma

Quote:

Originally Posted by rx3191

i have an 81 and it still has the ccc system on it, it made 320hp at the rear wheels and still needed alittle tuning done. the ccc system doesn't hurt performance at all if you know how to tune the carb. I love it becuase it runs perfect at wot and gets 22mpg on the freeway (2004r trans)

Again, you say you have 320 to the wheels. Is it stock? What did you do to get that 320?? Just curious.

Dec 10, 2010 | 11:51 AM

#26

rx3191

Advanced

Joined: Jul 2010

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From: Hesperia ca

the engine is not stock at all, it is a 350 roller with bow tie heads, flat top pistons and 0.35 quench (engine is about 10.50:1 with this setup), 282hr cam and a performer intake (big bottle neck that will soon be changed) car has full headers.
The carb has been modifyed a bit, the secondarys have been moded to open all the way, it has different hanger and rods for the sec. also (don't remmber the set up right now but i can check if you want) the primary side still has the stock main jets but the neddles have been raised all the way to the power tip, the mains are 76 the accle pump is trimmed slightly for more pump shot, the secondary air ports have been enlarged, and the idle jets have been enlarged. The idle mixture ports have been enlarged also. Just your basic q-jet stuff really.
With the mc solinoid adjusted right, the car runs great. very good drivablity with the larger cam and i get 20+ and the freeway at 80+mph and about 16 in town when i don't get a heavy foot.

If you have any other questions let me know, i will try and check the forum more offten

Dec 10, 2010 | 01:30 PM

#27

81pilot

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From: Enid Oklahoma

Quote:

Originally Posted by rx3191

If you have any other questions let me know, i will try and check the forum more offten

Thats very cool, but the reason I asked was because the topic of the computer comes up often around here. I "chose" to do away with mine and don't regret it, some like it and thats fine, but the fact you get the mileage you do is more than likely the overdrive versus the CCC, right? I mean I get 20+ on the highway with no overdrive and no CCC. You did all of that work to an E4ME carb, and that just intrigues me a bit. I won't comment on any others, but for me if I were to do a mild (or wild) build like you did, the carb and comp would go away to "simplify" the system. I applaud you for using it and getting it to provide you with great performance. Do you still have your smog stuff on? And did you decide to try to keep it as close to stock looking as possible? Again, you are a great example of someone who knows how to make them work and is happy with that and thats cool

Dec 10, 2010 | 05:45 PM

#28

manley845

Burning Brakes

Joined: Mar 2010

Posts: 1,189

Likes: 4

From: Freeport, FL

Quote:

Originally Posted by Perfect81

@81pilot........what do you suggest. I know about changing the headers, the dist, the carb and intake, but what about the computer. how do I manage the lock up for the torque converter? what else do I need to look at?

My vote would be to install an aftermarket convertor.

Also, if emissions isn't an issue for you I would replace the carb, install an HEI distributor, remove the; computer, evap system, knock sensors, O2 sensors, cat. convertors, coolant temp sensor, and MAP sensor is equipped (i cant remember); disconnect the electrical plug for the lock-up convertor.