When I have the funds available I will get a a new intake manifold and throttle body. Why? well should get some performance gains.
The standard intake manifold for the LS1 had a 78mm opening for the throttle body. The LS6 intake fits in its place, which had a few minor differences and was totally compatible this was used in 2001 and 2002.
Pictured is the 92mm, mine i so old, they don't even both making the smaller one anymore.
A long time ago i brought an intake manifold made by F.A.S.T. The only one available at the time was 78mm which was fine as it was compatible with the trottle body. It was ported to match the heads. There was performance increases with this, claimed to be 20hp.
Now I have aftermarket heads, and a very lumpy cam, and also bored and stroked. I'm sure this engine would like more air if it could get it.
Found this brilliant write up on LS1Tech, https://ls1tech.com/forums/generati...e-manifold-cylinder-head-testing-summary.html
Think of the car on tick over and you are breathing through a straw, all is okay, not try running. You soon get starved of air. Having more air and a better flow will be far better for the modifications i have. Which one do i choose....
Looking at the flow numbers it between the Fast LSXR 102mm and the MSD 102mm
Now i have read of some fitment issued for the MSD, but was that down to the person installing it? I do like F.A.S.T as my current intake has done very well over the years.
I would need a 102mm throttle body. I don't plan on running a MAF so that can go. So will get a 102mm pipe to then terminate into an air filter, or see what options are available there.
Then there will be a few tuning sessions to dial it in.
Anyway, this should generate some talk.... I'll get a shopping list to post, but it wont be any time soon for the purchase.
The standard intake manifold for the LS1 had a 78mm opening for the throttle body. The LS6 intake fits in its place, which had a few minor differences and was totally compatible this was used in 2001 and 2002.
Pictured is the 92mm, mine i so old, they don't even both making the smaller one anymore.
A long time ago i brought an intake manifold made by F.A.S.T. The only one available at the time was 78mm which was fine as it was compatible with the trottle body. It was ported to match the heads. There was performance increases with this, claimed to be 20hp.
Now I have aftermarket heads, and a very lumpy cam, and also bored and stroked. I'm sure this engine would like more air if it could get it.
Found this brilliant write up on LS1Tech, https://ls1tech.com/forums/generati...e-manifold-cylinder-head-testing-summary.html
Think of the car on tick over and you are breathing through a straw, all is okay, not try running. You soon get starved of air. Having more air and a better flow will be far better for the modifications i have. Which one do i choose....
Looking at the flow numbers it between the Fast LSXR 102mm and the MSD 102mm
Now i have read of some fitment issued for the MSD, but was that down to the person installing it? I do like F.A.S.T as my current intake has done very well over the years.
I would need a 102mm throttle body. I don't plan on running a MAF so that can go. So will get a 102mm pipe to then terminate into an air filter, or see what options are available there.
Then there will be a few tuning sessions to dial it in.
Anyway, this should generate some talk.... I'll get a shopping list to post, but it wont be any time soon for the purchase.
