Air tubes on a LT4
Thread Starter
Burning Brakes
Joined: Nov 2004
Posts: 834
Likes: 1
From: Keller Texas
Air tubes on a LT4
I have a 96 with a LT-4 and was wondering about the air tubes out of the top of the exhaut manifold. Can it be deleted and done another way? I know it has its purpose and reasons but there has t t be another way. Ihve removd the maniflds and I am looking to install LT headers with my Power Effects exhaust. It looks like it goes to a pump at the fron of the car maybe for a vacume or something.
Melting Slicks
Joined: Jan 2002
Posts: 2,784
Likes: 3
From: Atlanta GA
Im not sure what you are trying to do.. but you can delete them. If you are gettin headers without the AIR fittings, then just take out the air system. You really wont pick up any horsepower from it though considering the airpump is electric and not run by the motor. If you are just doing basic boltons to the car and not getting to crazy with it just get Exotic Muscle headers with the air fittings. Less work and they fit real nice
Thread Starter
Burning Brakes
Joined: Nov 2004
Posts: 834
Likes: 1
From: Keller Texas
Originally Posted by StealDads67
Im not sure what you are trying to do.. but you can delete them. If you are gettin headers without the AIR fittings, then just take out the air system. You really wont pick up any horsepower from it though considering the airpump is electric and not run by the motor. If you are just doing basic boltons to the car and not getting to crazy with it just get Exotic Muscle headers with the air fittings. Less work and they fit real nice
Well I am not trying to get any HP but just trying to get rid of it. What does it do anyway? So you can pull it all out?
Thread Starter
Burning Brakes
Joined: Nov 2004
Posts: 834
Likes: 1
From: Keller Texas
Originally Posted by GS 163
It can be done, just need to get the computer retuned as to not throw a code. It really cleans up under the engine compartment.
Very nice work you have done there........can you tell more about what the air pump does? Do they have a plate to block off the inlet on the back of the intake or did you have to make something yourself
Le Mans Master
Joined: Feb 2001
Posts: 6,022
Likes: 37
From: SW Fla
Not really sure exactly what the AIR pump does, but I know I dont need it here in Florida. I had to make a block off plate for the back of the manifold, and then get the computer tuned. Beyond that not too hard to do.
Le Mans Master
Joined: Jan 2003
Posts: 8,596
Likes: 19
From: Portland Oregon
Originally Posted by GS 163
Not really sure exactly what the AIR pump does, but I know I dont need it here in Florida. I had to make a block off plate for the back of the manifold, and then get the computer tuned. Beyond that not too hard to do.
All the AIR Pump does is to inject air into the exhaust stream when the engine coolant is below (x) to aid the CATs to light.
Le Mans Master
Joined: Jan 2003
Posts: 8,596
Likes: 19
From: Portland Oregon
Originally Posted by GS 163
Not really sure exactly what the AIR pump does, but I know I dont need it here in Florida. I had to make a block off plate for the back of the manifold, and then get the computer tuned. Beyond that not too hard to do.
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Thread Starter
Burning Brakes
Joined: Nov 2004
Posts: 834
Likes: 1
From: Keller Texas
Originally Posted by tjwong
The main function of the AIR PUMP is to aid the Catalytic convertors to light on cold starts or when the engine coolant temperature is below (x).
So do you as well think it can be removed? Has this issue come up before? You know that thing is a pain and it is not very nice looking anyway. Do alot of people remove it? And if I remove it I guess I remove all of it such as the hoses and the pump up front? Isnt there a small vacume hose that comes off of the pump also?
Team Owner
Joined: Sep 2003
Posts: 25,295
Likes: 4
From: I'm the walkin dude I can see all of the world...
St. Jude Donor '03
I can be removed and personally I love that mine is gone. You will need the custom tuning and it will not pass an emissions test.
Couple that with headers and a spark plug change will now only take about 20 minutes!
Couple that with headers and a spark plug change will now only take about 20 minutes!
Thread Starter
Burning Brakes
Joined: Nov 2004
Posts: 834
Likes: 1
From: Keller Texas
Originally Posted by VictorRussell'92
I can be removed and personally I love that mine is gone. You will need the custom tuning and it will not pass an emissions test.
Couple that with headers and a spark plug change will now only take about 20 minutes!
Couple that with headers and a spark plug change will now only take about 20 minutes!
After you get the computer done you will pass then?
Team Owner
Joined: Sep 2003
Posts: 25,295
Likes: 4
From: I'm the walkin dude I can see all of the world...
St. Jude Donor '03
Originally Posted by RED LT4
After you get the computer done you will pass then?
