Problems with running a carb and opti
Thread Starter
Registered User
Joined: Apr 2000
Posts: 326
From: northwest suburbs
Problems with running a carb and opti
Looking for some info on the problems that will be had when running a carb on a LT1 with the opti as ignition.
I am still a bit vague as to where the opti gets its signal from. My car is 93 so there should be some less problems at hand then a MAF car but what am i looking at.
Do i need to fool the car so that it believes the opti is still there. I want to run a carb but without a conventional distributer on the rear of the intake. What other alternatives do i have without putting a aftermarket setup that is costly?
I am still a bit vague as to where the opti gets its signal from. My car is 93 so there should be some less problems at hand then a MAF car but what am i looking at.
Do i need to fool the car so that it believes the opti is still there. I want to run a carb but without a conventional distributer on the rear of the intake. What other alternatives do i have without putting a aftermarket setup that is costly?
Registered User
Joined: May 1999
Posts: 5
From: Keswick, Ont, Canada
I think the only way to get it to work is with a crank trigger. Why keep the opti? I am curious? A billet distributor is cheaper then an opti-spark.
Vince
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95 Z28 383 LT1 roller motor. 9.93 @ 135 NA. Nitrious passes coming soon.
Vince
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95 Z28 383 LT1 roller motor. 9.93 @ 135 NA. Nitrious passes coming soon.
Thread Starter
Registered User
Joined: Apr 2000
Posts: 326
From: northwest suburbs
Already have a few brand new opti's and to drop the distributer i will have to pull the engine likely or drop the k-member a bit to get the engine low enough. Car is already complete and running with a setup i want but i want to do away and experiment with the carb.
Does anyone know what the opti uses as a reference on a 93 or what do most batch systems work off of?
Does anyone know what the opti uses as a reference on a 93 or what do most batch systems work off of?
Registered User
Joined: Nov 1999
Posts: 99
From: Where people don't discriminate about your induction system.
All you have to do to get a dist. in there is pull the intake.
There is no logical reason to keep that POS on the car.
You can use a crank trigger set-up OR a front mount dist (but they are costlier).
FWIW: Vince has a carb and billet dist. on his LT1 95 Camaro.
I have a crank trigger in my 93 TA.
Good luck and welcome to the outlaws of the 4th gens. LOL
Dave Brown
------------------
If a little's good,
More is better,
And too much is just right!!!
There is no logical reason to keep that POS on the car.
You can use a crank trigger set-up OR a front mount dist (but they are costlier).
FWIW: Vince has a carb and billet dist. on his LT1 95 Camaro.
I have a crank trigger in my 93 TA.
Good luck and welcome to the outlaws of the 4th gens. LOL
Dave Brown
------------------
If a little's good,
More is better,
And too much is just right!!!
Registered User
Joined: Aug 2001
Posts: 152
From: Memphis
<font face="Verdana, Arial" size="2">Originally posted by LJ93Z28GM:
[B]I am still a bit vague as to where the opti gets its signal from. My car is 93 so there should be some less problems at hand then a MAF car but what am i looking at.
</font>
[B]I am still a bit vague as to where the opti gets its signal from. My car is 93 so there should be some less problems at hand then a MAF car but what am i looking at.
</font>
The optispark consists of a camshft postition sensor and a distributor (cap/rotor).
You should be able to run with the carb and not worry about the FI harness being plugged in. Personally, I'd just run a regular ole 350 SB/ZZ4 if a carbed engine were my taste.
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