Ported LS2 vs LS6
Thread Starter
Pro
Joined: Apr 2011
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From: Sacramento Ca
Ported LS2 vs LS6
Im currently at 646/585 with 10.2lbs at 6700rpm, limiter set at 6800... cam is a 222/230 114+2.. With a stock ls6 and 75mm throttle body... would a ported LS2 manifold and 90mm pick me up anything/be worth my time?
Team Owner
Joined: Jan 2007
Posts: 29,063
Likes: 1,839
From: cookeville tennessee
Arun, ran the 75mm TB for the longest time befor going to the ls2 90mm TB. His car did great on the smaller. But you can pick one up at almost nothing. Robert
Thread Starter
Pro
Joined: Apr 2011
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From: Sacramento Ca
Ok good deal... so is that a bolt on deal? I know I'll need the 90tb and the caspers harness... but will the ls1/6 rails bolt on with my 60's? And if ya'll had to guess what would I be gaining?
ISIS SUCKS FAT CHOAD
Joined: Oct 2008
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From: Earth, United States
Thread Starter
Pro
Joined: Apr 2011
Posts: 696
Likes: 7
From: Sacramento Ca
Im still on stock rails... on some posts I was reading something about bigger o rings for the injectors, and spacers for the rails?? I dunno lol im slightly confused on it... it just sounded like a lot for a little is all.
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Safety Car
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From: Boise
Thread Starter
Pro
Joined: Apr 2011
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From: Sacramento Ca
Just took a FAST off of my car when I put the blower on.... bolted together without issue. If you're talking about a 102, then you're correct. I had a Vengeance 92.
Burning Brakes
Joined: Jul 2009
Posts: 976
Likes: 53
From: smyrna de
just not worth it.. ls6 manifolds have made over 900 on FI. ive also seen reputable ported ls2 manifolds dyno only 3-5 hp over a 75mm/stock ls6 manifold. this has been beat to absolute death on ls1 tech
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Pro
Joined: Apr 2011
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From: Sacramento Ca
Drifting
Joined: Dec 2003
Posts: 1,755
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From: Pearland Texas
Its FI! Hard to beat an LS6 intake. By far the strongest factory intake manifold, they were expensive to manufacture. Thats why GM tried the LS2. Looking for gains and there were some N/A but not much. Most were do to the larger TB and the gains were up top not though out the power band. But you will see minimal gains from an intake swap alone. and Price per HP, your better off putting a smaller pulley on there if you can etc... GL!
Le Mans Master
Joined: Jun 2002
Posts: 8,352
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From: In the pit, trying to love someone.
Its FI! Hard to beat an LS6 intake. By far the strongest factory intake manifold, they were expensive to manufacture. Thats why GM tried the LS2. Looking for gains and there were some N/A but not much. Most were do to the larger TB and the gains were up top not though out the power band. But you will see minimal gains from an intake swap alone. and Price per HP, your better off putting a smaller pulley on there if you can etc... GL!
ISIS SUCKS FAT CHOAD
Joined: Oct 2008
Posts: 8,124
Likes: 53
From: Earth, United States
you probably wont on a NA engine but you port a LS2 and they seem to flow better than same ported LS6. Actually had numbers to back this up back in the day but I lost em. the 90 mm opening of the LS2 does have an effect on capability!! vs the 76mm opening of the LS6.
Le Mans Master
Joined: Jan 2009
Posts: 7,767
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From: East Texas
Your just saying that because you have one hahaha...