intake manifold upgrade?
Melting Slicks
Joined: May 2000
Posts: 2,498
Likes: 4
From: Brentwood TN
Originally Posted by Iron Maiden Fan
This might help, it's a copy of an article from Corvette Fever, (Sept. 2004) that ran comparisions between FAST, LS1, LS6 with a stock engine, and with a cammed/header engine, on the dyno.
http://www.timelesscharms.net/ls1/co...on/compare.htm
http://www.timelesscharms.net/ls1/co...on/compare.htm
Maybe the person posting who had the LS6 intake for sale and had dynoed it on his car will see this and tell us his story.
Charlie
Le Mans Master
Joined: Aug 2000
Posts: 5,294
Likes: 2
From: Suffolk, Long Island NY
While I just had bolt ons and a tune done(blackwing, TPIS LT's, Dr. Gas Offroad Pipe), I went went from the LS1 to LS6 intake. I only saw a 5 rwhp increase. I know others have seen more with similar mods, but you would be lucky to see over 10RWHP with your mods.
Melting Slicks
Joined: May 2000
Posts: 2,498
Likes: 4
From: Brentwood TN
Originally Posted by Face
While I just had bolt ons and a tune done(blackwing, TPIS LT's, Dr. Gas Offroad Pipe), I went went from the LS1 to LS6 intake. I only saw a 5 rwhp increase. I know others have seen more with similar mods, but you would be lucky to see over 10RWHP with your mods.
Charlie
Racer
Joined: Aug 2006
Posts: 301
Likes: 0
From: GA
Is it, or is it not?
So much back and forth? Would this be a good mod to do on my LS1 with the TI exhaust and WCC X-pipe already installed? Or should I go with something else. Headers are in the very near future, as well.
DBLX
DBLX
Drifting
Joined: May 2005
Posts: 1,590
Likes: 1
From: Littleton Colorado
Originally Posted by DBLX
So much back and forth? Would this be a good mod to do on my LS1 with the TI exhaust and WCC X-pipe already installed? Or should I go with something else. Headers are in the very near future, as well.
DBLX
DBLX
I'm glad I did mine, I thought it had better trottle response and torque. This is my only engine mod so far, besides zip-tie. I'd do it again even if I wasn't planning on more mods. But, thats me
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Le Mans Master
Joined: Dec 2003
Posts: 5,561
Likes: 448
From: Atlanta metro Ga.
If you read through the article posted, the diff. between an LS1 and LS6 manifold is (at best with a cam installed) 6HP. Not so sure it's quite worth the dollars spent.
Seems like a better choice would be a used set of LS6 heads (and then maybe an LS6 manifold to compliment).
Seems like a better choice would be a used set of LS6 heads (and then maybe an LS6 manifold to compliment).
Last edited by Dan_the_C5_Man; Dec 4, 2006 at 07:50 PM.
Melting Slicks
Joined: May 2000
Posts: 2,498
Likes: 4
From: Brentwood TN
Originally Posted by Dan_the_C5_Man
If you read through the article posted, the diff. between an LS1 and LS6 manifold is (at best with a cam installed) 6HP. Not so sure it's quite worth the dollars spent.
Seems like a better choice would be a used set of LS6 heads (and then maybe an LS6 manifold to compliment).
Seems like a better choice would be a used set of LS6 heads (and then maybe an LS6 manifold to compliment).
For the $350 manifold (used) plus a couple of coolant tubes plus maybe $40 for the gaskets plus the swap time, 5-6hp just ain't in the cards for me anymore.
If I were doing heads, headers, cam, etc., then the manifold and throttle body come into play. Otherwise, the LS6 manifold doesn't make sense, and this if from someone who was ready to pull the trigger on a purchase. If the person selling the LS6 manifold hadn't shot straight with me and told me the straight doo-doo about what the manifold did for him I would have bought that bad boy. Unless he gives me the go ahead, I can't say who that was because he may still be trying to sell the manifold. I'll tell you this, though. If a prospective buyer asks this guy the same questions I did, he'll give them the same answer because he is one STAND UP dude.
Charlie
good info.
Burning Brakes
Joined: Jan 2005
Posts: 776
Likes: 0
From: Mount Juliet Tennessee
Im going withthe LS2 on my 408 really a (413 hehe) I did this because I can use the LS2 TB which I will get real gains from 78 to 90 mm. THey do have a LS6 with a 4 bolt pattern but to be honest the MAYBE extra 2 HP over the LS2 is not worth the extra 300 dollars plus tax the Ls6 intake cots over the LS2. Im talking about the Ls6 with the 4 bolt pattern for the 90 mm TB. I just got the Throttle body and LS2 intake with everything for the price of one 4 bolt Ls6 intake.
Last edited by LsJuan25; Dec 6, 2006 at 02:46 AM.
Racer
Joined: Aug 2002
Posts: 253
Likes: 1
From: Bossier city, Louisiana
Originally Posted by cruisemon
For the $350 manifold (used) plus a couple of coolant tubes plus maybe $40 for the gaskets plus the swap time, 5-6hp just ain't in the cards for me anymore.
If I were doing heads, headers, cam, etc., then the manifold and throttle body come into play. Otherwise, the LS6 manifold doesn't make sense, and this if from someone who was ready to pull the trigger on a purchase. If the person selling the LS6 manifold hadn't shot straight with me and told me the straight doo-doo about what the manifold did for him I would have bought that bad boy. Unless he gives me the go ahead, I can't say who that was because he may still be trying to sell the manifold. I'll tell you this, though. If a prospective buyer asks this guy the same questions I did, he'll give them the same answer because he is one STAND UP dude.
Charlie
That was my feelings. By the time you have enough mods to need a better flowing intake, your better off with a F.A.S.T. Compared to the cost of the mods it took to get there, it's a neglible difference over the LS6 intake. (my 2nd 2 cents worth... or 4 cents total
)
Burning Brakes
Joined: Sep 2005
Posts: 877
Likes: 0
From: Feasterville PA
Maybe Fbodys are different because I've seen a lot more than a 3-5hp gain on just a intake swap. I've also seen a few tenths at track just on the intake swap.
Like others have said it's more than just overall horsepower but to each their own.
Also, on a side note, a FAST intake is pointless on a stock motor, it's overkill, unless it's a FAST 78mm which at that point everyone will say screw the 78 and go with a 90.
Head over to LS1tech and see how a LS6 w/ported TB stacks up to a 90/90 on a stock headed and cammed motor, you'll be surprised
Like others have said it's more than just overall horsepower but to each their own.
Also, on a side note, a FAST intake is pointless on a stock motor, it's overkill, unless it's a FAST 78mm which at that point everyone will say screw the 78 and go with a 90.
Head over to LS1tech and see how a LS6 w/ported TB stacks up to a 90/90 on a stock headed and cammed motor, you'll be surprised
Race Director
Joined: Dec 2003
Posts: 12,599
Likes: 1
From: Texas
Originally Posted by cruisemon
I'll tell you this, though. If a prospective buyer asks this guy the same questions I did, he'll give them the same answer because he is one STAND UP dude.
Charlie
Charlie
Melting Slicks
Joined: May 2000
Posts: 2,498
Likes: 4
From: Brentwood TN
Originally Posted by vetterlatethannever
:o
Charlie
