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best intake manifold for the money?

This is a discussion on best intake manifold for the money? within the External Engine forums, part of the LSx Technical Help Section category; 1st off let me say that the 04 gto's all came out with the ls6 intake. i am still running ...

  1. #61
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    1st off let me say that the 04 gto's all came out with the ls6 intake. i am still running my ls6 intake, heads and bottom end and am at 400rwhp and 390rwtq with a m6. and i have a 605 exhaust lift cam. i can go one size bigger cam before i will need to fly cut the pistons.

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    Junior Member Dreamnz28's Avatar
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    What ie everyones opinion on professional products 96mm intake and throttle body
    2000 Z28 Custom tune, slp air box/ram air, granetelli Mass air, Hooker long tubes/dual cats no mufflers,
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    Moderator 98TransAmWs-6's Avatar
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    I had one and upgraded to a FAST 102. It worked fine but took a lot of work to make it work right.
    1998 Trans Am WS6 - Phantom
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  4. #64
    Senior Member Whamhammer's Avatar
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    '02 Trans Am WS-6, 6M

    How much of a difference is the FAST intake vs LS6 intake on a h/c LS1?

  5. #65
    Junior Member cj3489's Avatar
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    Orange and Ghosty
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    what about the 102's? waste unless you have it feeding 400+inches?
    ceramic pacesetters, 3" tsp rumbler tds, clear lid, frost mail order, umi sfcs + stb, 6 pt cage, b&m line lock, short throw, hays clutch, centerforce flywheel, 160 stat, couple fancy new seats, cags-air-egr-rear seat delete...
    n2o in the works

  6. #66
    Moderator 35th-ANV-SS's Avatar
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    For the 346ci motor, I think the LS6 is the best bang for your buck. FAST intake is $$$ for the gains you receive on the LS1 IMO

  7. #67
    Junior Member cj3489's Avatar
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    Orange and Ghosty
    2001 WS6 m6

    so in my case, having a factory ls6 intake, i shouldn't replace it until i build a big hammer?

  8. #68
    Moderator 98TransAmWs-6's Avatar
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    98 TA WS6/ 01 C5 Corvette

    I have a FAST 102 but I haven't really ran the car since the install. My car didn't come with a LS6 intake and I plan on building a 512 ci stroker in the future and didn't want to waste money buying a ls6 to later replace it with a FAST.

    Another reason to get the FAST over the ls6 would be if you were to run really high duration and lift cam. The ls6 intake would work but you would see some gain from a FAST.

  9. #69
    Wait.........WHAT??!! LoneGunman's Avatar
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    I need to jump in here. I will be doing a full bolt-on mod session soon, and I was wondering about the LS2 intake. It has'nt been mentioned here yet. It's a 90mm and was supposed to be better than the LS6. Anyone have any opinions on this?

  10. #70
    Moderator 98TransAmWs-6's Avatar
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    Quote Originally Posted by LoneGunman View Post
    I need to jump in here. I will be doing a full bolt-on mod session soon, and I was wondering about the LS2 intake. It has'nt been mentioned here yet. It's a 90mm and was supposed to be better than the LS6. Anyone have any opinions on this?
    Actually the flow on the ls2 intake is worse than the ls6. However you can get a 90mm ls6 which flows better than both. There is a company the takes the snout off the ls2 intake and puts it on the ls6 intake. That is the route I would have gone if I had a ls6 intake on my car.
    Last edited by 98TransAmWs-6; 12-24-2012 at 11:16 AM.

  11. #71
    Senior Member Whamhammer's Avatar
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    Quote Originally Posted by 98TransAmWs-6 View Post
    Actually the flow on the ls2 intake is worse than the ls6. However you can get a 90mm ls6 which flows better than both. There is a company the takes the snout off the ls2 intake and puts it on the ls6 intake. That is the route I would have gone if I had a ls6 intake on my car.
    Is there some link that we can have to to look at this modded intake?

  12. #72
    Moderator 98TransAmWs-6's Avatar
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    Quote Originally Posted by Whamhammer View Post
    Quote Originally Posted by 98TransAmWs-6 View Post
    Actually the flow on the ls2 intake is worse than the ls6. However you can get a 90mm ls6 which flows better than both. There is a company the takes the snout off the ls2 intake and puts it on the ls6 intake. That is the route I would have gone if I had a ls6 intake on my car.
    Is there some link that we can have to to look at this modded intake?
    http://www.tpis.com/parts/view/39

    It's $799 if you don't supply the intake.

  13. #73
    Wait.........WHAT??!! LoneGunman's Avatar
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    Anyone know what it would cost if you supplied the intake?

  14. #74
    Moderator 98TransAmWs-6's Avatar
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    Quote Originally Posted by LoneGunman View Post
    Anyone know what it would cost if you supplied the intake?
    No clue but if I had to guess it would knock $200-350 off the price.

  15. #75
    Senior Member Whamhammer's Avatar
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    '02 Trans Am WS-6, 6M

    I wish they had shown a bigger picture than that. I'm trying to figure out what they do that merits $400+ for just the snout install.

  16. #76
    Moderator 98TransAmWs-6's Avatar
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    Quote Originally Posted by Whamhammer View Post
    I wish they had shown a bigger picture than that. I'm trying to figure out what they do that merits $400+ for just the snout install.
    Well they have to make sure it doesn't leak, most of it is probably labor plus the cost of an ls2 intake for the snout. I know they use an epoxy to secure the snout. You could always email or call and ask.

    Funny thing is I bought my fast 102 new for $24 more than the 90mm ls6 intake costs without supplying the intake.
    Last edited by 98TransAmWs-6; 12-27-2012 at 08:00 AM.

  17. #77
    Senior Member Whamhammer's Avatar
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    '02 Trans Am WS-6, 6M

    Yes, it does seem very pricey. I wonder what kind of flow gains one could really expect over the Fast 102, or even the stock LS6.

    I also wonder how hard it would be to hollow out the LS6 manifold and put a thin plate that will accept a larger throttle body.

  18. #78
    rice,its what's fo dinner LeadFarmer's Avatar
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    If you're a bolt on car, an ls6 is plenty.
    If you're a cam/head car, either a FAST 90/90 or FAST 92/92, ported if possible. Everything else pretty much either has some sort of fitment issue, are lead anchors, or/and are aluminum and act as giant heatsinks

    Just to give you an idea of the gains you'd be looking at:

    with the stock ls1 intake and bolt ons I made 335 to the wheels. 380 to the wheels with my cam and ls1 intake. Picked up a ported FAST 92 with a 92mm throttle body and made 420ish to the wheels. A proper intake can give you just as much of an hp gain as the cam or heads, don't skimp out.

    The FAST 102 is overkill for a stock cubes ls1, even with heads and a cam the gains will be minimal. And without heads it could actually hurt your numbers.
    Last edited by LeadFarmer; 12-28-2012 at 09:54 AM.
    M6, MS3 Cam, FAST 92/92, LS7 Clutch, Hurst Comp/Plus Shifter, Lid, K&N, OBX LT's, 3in ORX True Duals, KYB AGX shocks, BMR 3-Point SFCs, BMR springs, BMR Adj. PHR, LCA Relos, STB, 315 NT555Rs, DeepDish C5Z06s.

  19. #79
    Senior Member Whamhammer's Avatar
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    Quote Originally Posted by LeadFarmer View Post
    If you're a bolt on car, an ls6 is plenty.
    If you're a cam/head car, either a FAST 90/90 or FAST 92/92, ported if possible. Everything else pretty much either has some sort of fitment issue, are lead anchors, or/and are aluminum and act as giant heatsinks

    Just to give you an idea of the gains you'd be looking at:

    with the stock ls1 intake and bolt ons I made 335 to the wheels. 380 to the wheels with my cam and ls1 intake. Picked up a ported FAST 92 with a 92mm throttle body and made 420ish to the wheels. A proper intake can give you just as much of an hp gain as the cam or heads, don't skimp out.

    The FAST 102 is overkill for a stock cubes ls1, even with heads and a cam the gains will be minimal. And without heads it could actually hurt your numbers.
    Can a person even get a FAST less than a 102 these days? I thought the 92 was discontinued.

    I plan on doing a head/cam build on my '02 LS1, unless LS3 crate prices drop dramatically.

  20. #80
    Moderator 98TransAmWs-6's Avatar
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    Quote Originally Posted by Whamhammer View Post
    Quote Originally Posted by LeadFarmer View Post
    If you're a bolt on car, an ls6 is plenty.
    If you're a cam/head car, either a FAST 90/90 or FAST 92/92, ported if possible. Everything else pretty much either has some sort of fitment issue, are lead anchors, or/and are aluminum and act as giant heatsinks

    Just to give you an idea of the gains you'd be looking at:

    with the stock ls1 intake and bolt ons I made 335 to the wheels. 380 to the wheels with my cam and ls1 intake. Picked up a ported FAST 92 with a 92mm throttle body and made 420ish to the wheels. A proper intake can give you just as much of an hp gain as the cam or heads, don't skimp out.

    The FAST 102 is overkill for a stock cubes ls1, even with heads and a cam the gains will be minimal. And without heads it could actually hurt your numbers.
    Can a person even get a FAST less than a 102 these days? I thought the 92 was discontinued.

    I plan on doing a head/cam build on my '02 LS1, unless LS3 crate prices drop dramatically.
    They started making it again I believe since I saw them for sale on Texas Speed. But other than that you could find them used. I don't think a 102 will hurt performance at all. Yes you won't see as much gain without heads, cam, or more cubes. I am going to be building a 500+ ci so that is one reason I went with the 102.

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