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What Intake/TB Combo?

This is a discussion on What Intake/TB Combo? within the External Engine forums, part of the LSx Technical Help Section category; I have a stock 98 LS1 engine, and i plan on keeping it stock with no heads or cam due ...

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    Member 98Z28CamaroJG's Avatar
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    What Intake/TB Combo?

    I have a stock 98 LS1 engine, and i plan on keeping it stock with no heads or cam due to my 135xxx miles. At the earliest, 3 or 4 years from now i'll get a stroker to replace it, but for now i'd like to get the best intake manifold and throttle body combo for the stock motor i have now. I just want the best bolt ons i can get. I know to go with FAST for the manifold, but which one would work the best on my stock motor? 78, 90, 92, 102? Should i get the FAST TB to go with the manifold as well?

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    NY Representative basballny2's Avatar
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    no point in any of those........ls6 intake with a pp tb.....no sense spending a grand with stock internals

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    Senior Member Z28boy2000's Avatar
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    for the long term goals you have of going with a stroker i would say a FAST 92 or 102 would be the best for you. its gunna be quite a bit of money up front but in the end you will be happy.
    2000 B4C Special Service Package Z28 - Kooks 1&7/8 Stepped 2'' - TSP Torquer V.2 - FAST 92/92 - BDR 4000 Conveter - Xtreme Trans Stage II - Full UMI Suspension - Pacesetter LT's - Comp Drag Shocks - Magnaflow - Cutout - ZO6 MAF - FTP LID - Street Tuned -

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    King 0f n00bz shady milkman's Avatar
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    well with that long of a wait...i would hold on on the intake manifold just yet..a new style will come out more than likely.

    however with the available options now..id still say a ls6. you can run it for 3 years and sell it for no loss.

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    NY Representative basballny2's Avatar
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    Quote Originally Posted by shady milkman View Post

    however with the available options now..id still say a ls6. you can run it for 3 years and sell it for no loss.
    every thread i read where u or me comment in.....its always the same haha

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    King 0f n00bz shady milkman's Avatar
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    Quote Originally Posted by basballny2 View Post
    every thread i read where u or me comment in.....its always the same haha
    lol

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    Member 98Z28CamaroJG's Avatar
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    What kind of difference is there between the FAST 92 and the 102?

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    NY Representative basballny2's Avatar
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    Quote Originally Posted by 98Z28CamaroJG View Post
    What kind of difference is there between the FAST 92 and the 102?
    theres no point in either of those on a stock ls1 with no cam/head work done. putting a 92 or 102 on your car is just guna make it run like shit. save your money and when you have the money to bore/stoke it then you invest in one of those. but for now your just wasting your money

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    Senior Member Z28boy2000's Avatar
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    Quote Originally Posted by 98Z28CamaroJG View Post
    What kind of difference is there between the FAST 92 and the 102?
    10mm lol, but not a big enough difference for everyone that has FAST 90/92's to run out and upgrade

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    Also you would have to upgrade the fuel rails to ls2 to run a fast 102...like mentioned already, for a stock ls1, I would just pick up a used ls6 intake for now.

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    Member 98Z28CamaroJG's Avatar
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    would i need anything (like fuel rails) for the 92mm FAST?

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    stock ls1 fuel rails will work on the fast 78/90/92mm.go with ls6 intake.

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    The main reason most of us are saying to go with the LS6 is because you don't plan on doing H&C or the stroker for several years. You can pick up a used LS6 for like $300 vs a used fast 90/92 for $600-800 vs a Fast 102/TB for $1400 + LS2 fuel rails for ~$200. On a stock ls1, you would see minimal gains going from the LS6 to a Fast.
    By the time you decide to do internal motor work, the Fast 90/92/102 will most likely have dropped in price or a new design will have come out. At that time, you could sell your LS6 and recuperate most of the $300 investment.

    Plus if you decide to switch engine blocks (ie: LS2 or LS3) instead of doing the stroker, they require a different porting on the Fast 102...so you would have to sell your LS1 Fast to get one to match the new engine.
    Last edited by peterlawl84; 04-15-2010 at 07:26 AM.

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    Member 98Z28CamaroJG's Avatar
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    I really appreciate all of that information, it really opens my eyes to the persistance of the LS6 over the FAST. The reason i really want to go with FAST, is because even if it IS a minimal gain, it is better overall than the LS6 on a stock motor. I don't plan on doing a motor swap any time soon, so i really want to MAX out my car with the bolt ons i buy. So, every little bit counts haha.

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    Quote Originally Posted by 98Z28CamaroJG View Post
    I really appreciate all of that information, it really opens my eyes to the persistance of the LS6 over the FAST. The reason i really want to go with FAST, is because even if it IS a minimal gain, it is better overall than the LS6 on a stock motor. I don't plan on doing a motor swap any time soon, so i really want to MAX out my car with the bolt ons i buy. So, every little bit counts haha.
    You Might see ~10 hp extra for a FAST over a LS6 on stock LS1 (alittle more if its ported)...if you can justify the extra money then go for it...but remember those prices I was listing was just for the intake...you would also need a larger TB to go with the FAST...and to maximize it, a larger opening airlid and MAF, plus you should probably get a tune (from what I've read) if going to a larger Fast

    Don't get me wrong, Im in the market for a FAST combo since I am doing a H&C right now...but have been using an LS6 for 6+ yrs and have been pretty happy with it and if I can make myself pull the trigger for a FAST, Im sure I will be ok with sticking with the current intake. Just saying that money could be better spent else where...ie: suspension parts (doesn't matter how much rwhp you have if you cant put it down)
    Last edited by peterlawl84; 04-15-2010 at 08:43 AM.

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    Quote Originally Posted by 98Z28CamaroJG View Post
    I really appreciate all of that information, it really opens my eyes to the persistance of the LS6 over the FAST. The reason i really want to go with FAST, is because even if it IS a minimal gain, it is better overall than the LS6 on a stock motor.
    the "minimal" gain is your car is going to run like shit......theres no point to doing this, the ls6 is a great upgrade over the ls1 intake and you can buy a used one in great condition for about $300

    Quote Originally Posted by peterlawl84 View Post
    You Might see ~10 hp extra for a FAST over a LS6 on stock LS1 (alittle more if its ported)...
    Just saying that money could be better spent else where...ie: suspension parts (doesn't matter how much rwhp you have if you cant put it down)
    10 hp over a ls6 intake? if he puts a sticker on his car will he get another 5?
    the part about suspension mods might be the most intellegent post of the thread.....all sarcasim aside

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    The FAST is NOT BETTER than the LS6 on a bone stock 135k engine with original valve springs and rev limiter, you will "FEEL" no gain between the LS6 and FAST. If you're spending alot of time in the 5000+ rpm range where the FAST starts to shine, you're going to drop a valve when not if one of the original springs fail. In addition, the stock cam will choke the capability of the FAST.

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    Quote Originally Posted by basballny2 View Post
    the "minimal" gain is your car is going to run like shit......theres no point to doing this, the ls6 is a great upgrade over the ls1 intake and you can buy a used one in great condition for about $300


    10 hp over a ls6 intake? if he puts a sticker on his car will he get another 5?
    the part about suspension mods might be the most intellegent post of the thread.....all sarcasim aside
    I'm just listing what I have seen on posts in the past, I've seen other ppl say thats what they picked up on a bolt-on vehicle (and yes I realized that after typing that his car is stock, not bolt-on currently)...sorry if I was mistaken.

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