Air Pump 1981
Burning Brakes
Joined: Dec 2002
Posts: 1,205
Likes: 1
From: "Too Low, Too Fast, Too Loud" TX
Welcome to the forum bro! There is a lot of knowledge here and experience. The best site on the internet for vettes! I have an 81' myself and going through the struggles of deciding which way to go with it. I am sure some of the guys will chime in here soon..again welcome! Lets see some pics of that vette too! Joe..
Instructor
Joined: Sep 2003
Posts: 184
Likes: 0
From: boulder wa
i have an 81 an took the air pump off, just disconnected the wires(no doubt someone will say thats wrong) it didnt seem to effect anything. just remember there is a stove pipe that should run to the cat convertor that cools it so remember to get rid of the cats 
Pro
Joined: Feb 2003
Posts: 582
Likes: 0
From: Ashaway RI
I have an 81 and have removed the air pump and related hoses, sensors, vacuum lines, etc. and also the cat. There is definitely a performance improvement in just the convertor removal itself. You can plug the AIR lines on the factory headers with a pipe cap (I forget the size). The computer is still installed and I get no unusual check engine lights. Let me know if I can give you anymoe info.
