LS Series Intakes ?
Thread Starter
Burning Brakes
Joined: Oct 2003
Posts: 1,162
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From: Dubai
LS Series Intakes ?
A couple of months back as I was browsing through Vette Magazine I came across an interesting read. The guys were building an LS2 and during the build decided to try out different intake manifolds available. The interesting bit is this :
1) The stock LS1 manifold performed almost identically to the larger LS2 manifold with the bigger TB opening until 5500 rpm.From there, the LS2 bested the LS1 by as much as 11 hp. Part of the credit surely goes to the larger 90mm throttle body on the LS2. BUT get this the LS1 made more peak TQ! 471 VS 469 !
2) The stock LS6 manifold beat the LS2 manifold. The LS6 intake not only produced more peak power than the LS2, but it also outperformed the newer-style manifold from 3,700 to 6,500 rpm. The guys even suspect that with a larger TB the difference would have been even MORE !
Link to article :
http://www.vetteweb.com/tech/vemp_06...tor/index.html
Theories ? This is sure confisung the hell out of me. I have my theory but wanted to hear the expert opinions. Mine has to do with the amount of air fed into the intake. I am no expert so correct me if I'm wrong.
1) The stock LS1 manifold performed almost identically to the larger LS2 manifold with the bigger TB opening until 5500 rpm.From there, the LS2 bested the LS1 by as much as 11 hp. Part of the credit surely goes to the larger 90mm throttle body on the LS2. BUT get this the LS1 made more peak TQ! 471 VS 469 !
2) The stock LS6 manifold beat the LS2 manifold. The LS6 intake not only produced more peak power than the LS2, but it also outperformed the newer-style manifold from 3,700 to 6,500 rpm. The guys even suspect that with a larger TB the difference would have been even MORE !
Link to article :
http://www.vetteweb.com/tech/vemp_06...tor/index.html
Theories ? This is sure confisung the hell out of me. I have my theory but wanted to hear the expert opinions. Mine has to do with the amount of air fed into the intake. I am no expert so correct me if I'm wrong.
