81 disturbtor
Thread Starter
5th Gear
Joined: Oct 2020
Posts: 5
Likes: 0
81 disturbtor
I’m a New member, and I’m currently doing some major restoration work on my brothers 81 Corvette,I’m building a 383 Blueprint engine for it and noticed that the oe disturber doesn’t have a vacuum advance, I’m going to replace it with one that has vacuum advance, or possibly just install a vacuum canister on the oe one, any advice will be appreciated, thanks
Thread Starter
5th Gear
Joined: Oct 2020
Posts: 5
Likes: 0
Your '81 uses an ECM-controlled distributor and carburetor. The distributor does not have vacuum advance or centrifugal advance systems in it - it is controlled entirely by the ECM. You cannot retrofit it with a vacuum advance. If you disconnect the ECM from the distributor, you will throw a "check engine" light.
Lars
Lars
Race Director
Joined: Mar 2017
Posts: 11,975
Likes: 4,524
From: Virginia
Can you post some photos? If someone has already removed the ECM and changed the carb, you should be able to put in a GM HEI distributor with a 4-wire module and vac advance. Otherwise, you may want to consider doing that yourself.
Does your brother want the car to remain stock?
Does your brother want the car to remain stock?
Thread Starter
5th Gear
Joined: Oct 2020
Posts: 5
Likes: 0
Can you post some photos? If someone has already removed the ECM and changed the carb, you should be able to put in a GM HEI distributor with a 4-wire module and vac advance. Otherwise, you may want to consider doing that yourself.
Does your brother want the car to remain stock?
Does your brother want the car to remain stock?
