S2VYSS

I did a search but couldn't find any information

What kind of results have people seen when putting an LS2 manifold on a cammed LS1? I seen results of 2mph increases at the track, but was wondering what results other people have had

Looking for a bang for buck manifold as I have a blower planned down the track and don't want to spend the money on a FAST 92

Cheers Guys

speedtigger

iTrader: (16)

That magazine tests say the LS6 manifold is stronger across the board.

S2VYSS

Which magazine is that?

Wouldnt the LS2 flow better in the top end?

speedtigger

iTrader: (16)

http://www.vetteweb.com/tech/vemp_06...tor/index.html

The Alchemist

iTrader: (19)

LS2 is a rectangular port vs. cathedral port for the ls6. If you have stock heads, you need a cathedral port intake manifold.

TransWS6Am

iTrader: (41)

huh? who told you ls2 had rectangular ports? because they dont

Mkelcy

iTrader: (3)

LS1, LS2, LS6 are all the same cathedral port configuration; LS3, L92, LS9, LSA, LS7, LSX etc. are rectangular port and LS7 and LSX are not the same rectangular port configuration as the LS3 etc. group.

The Alchemist

iTrader: (19)

My bad... I was thinking L92 for some reason.

71 chevelle

iTrader: (13)

LS2 will out perform a ls6 if its ported. You will see the same gain as a stock fast 90 intake.

SweetS10V8

iTrader: (4)

I dont think this is true. From my research the LS2 has the same runners and design of the LS6 but with a 90mm throttle body. The problem in the LS2 lies in the fact that they changed the method they use to make them. A cheaper method was used and it caused the runners to leak into one another.

The LS6 is typically worth 10hp over the LS2. Im a fan of the FAST intakes, that make 10-15 over the LS6.

01corvette01

iTrader: (2)

Use the LS6. The LS2 doesnt flow as well. Why do you think you can pick up a LS2 for around $200? Also the LS2 manifold wont work with LS1/LS6 fuel rails.

180ls1

iTrader: (4)

I did some research a while back and that was the exact same consensus i got

but when the ls2 intake is not ported the ls6 will outflow it.

S2VYSS

So having the increased surface area of the 90mm throttle body doesnt really count for many gains

Anyone done any back to back testing at the track?

The Alchemist

iTrader: (19)

The larger throttle body is only a gain if the intake runners flow well enough need a larger opening. It's the same concept with having a larger MAF in place. Now have a 90mm opening grafted to an ls6 intake, and you'll some good gains.

MonmouthCtyLS7

iTrader: (6)

LS2 will gain a few hp up top over the stock piece..thats it.

S2VYSS

So the intake runners on the LS6 flow better then the intake runners on the LS2 manifold?

How would you graft a 90mm onto a LS6?

redbird555

iTrader: (14)

you dont lol theres not enough material in the snout to bore it out.... I believe the biggest you could hone it to is 85? but i may be wrong there

The Alchemist

iTrader: (19)

TPIS will graft a 90mm intake for not a lot of money. Google is your friend.

71 chevelle

iTrader: (13)

The issue that sweets10 is that it may have not been done by someone with experience. The LS2 has proven gains. I would say contact Jeremy at fastproms or Cory @ ls2 portworks. Both can back up the info on a ls2. And are well respected in the LS community.The ls2 intake is just the stepchild.

here is a link

http://forums.corvetteforum.com/c6-p...s-back-on.html

180ls1

iTrader: (4)

thanks for posting up that information i was going to look for it but got too lazy