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Throttle Body Spacer??

This is a discussion on Throttle Body Spacer?? within the Firebird / WS6 forums, part of the Vehicle Specific category; I know this is not the v6 forum but no one goes on the v6 forum anymore.. So i am ...

  1. #1
    Member flybird's Avatar
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    Mid Night Blue
    1999 Firebird 3.8 series

    Throttle Body Spacer??

    I know this is not the v6 forum but no one goes on the v6 forum anymore.. So i am sorry i dont have a v8, im in school so money is low!

    I have a 99 3.8 firebird. Engine completly rebuilt bottom to top, new GM long block bored over .30. shaved heads, k&n cold air intake and performance chip. I was wondering if anyone has information on a throttle body spacer. Does it truly add HP and TQ? Has anyone ever used an item like this?


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  2. #2
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    My feeling is that the gains would be negligible at best. Certainly nothing you are going to feel in the seat of your pants.

  3. #3
    None Shall Pass Knight's Avatar
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    ^This. Save your money.

  4. #4
    Member Redrokit8's Avatar
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    2002 Trans AM WS6

    The only true benefit to these is the revenues generated back to the sellers.
    Save your money.
    Not worth the powder to blow them up.
    Of course they look real sexy in the designer colors that are available. Under hood glitz.

  5. #5
    Member chris1974's Avatar
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    1998 Firebird Formula LS1

    ^^^ Yup! Agree with everyone else....total waste of money. No gains whatsoever.

  6. #6
    Member flybird's Avatar
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    Ah I knew itd be too good to be true for only $50.. Thnx for the input guys.

  7. #7
    Electrical Engineer KMdef9's Avatar
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    On our v8's, more specifically on our intake setup, we cant benefit much, if at all. This is because of our very short intake line that is nearly a straight line. Tb spacers benefit a twisted long intake line more (I'm not saying they're worlds of difference) because they help twist the air flow and create a steady/consistent stream of air into the Tb because the more turns and more length that exists, the sloppier the air flow is. In a game of 1/4 miles, this one is measured in the inches, but some argue every bit helps.

    Id put this mod down there with a tower strut brace.

  8. #8
    Member Redrokit8's Avatar
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    Quote Originally Posted by KMdef9 View Post
    On our v8's, more specifically on our intake setup, we cant benefit much, if at all. This is because of our very short intake line that is nearly a straight line. Tb spacers benefit a twisted long intake line more (I'm not saying they're worlds of difference) because they help twist the air flow and create a steady/consistent stream of air into the Tb because the more turns and more length that exists, the sloppier the air flow is. In a game of 1/4 miles, this one is measured in the inches, but some argue every bit helps.

    Id put this mod down there with a tower strut brace.
    Damn, I've gotta delete that useless Tower Brace from my signature.
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  9. #9
    Insurgent Hunter dethinboots's Avatar
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    To be honest I think im going to grab one. I saw a friend dyno with and without and it made a little difference, but an anodized blue one would look cool next to my elite engineering cc

  10. #10
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    How much difference?

  11. #11
    Spaz is My Mentor SMWS6TA's Avatar
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    All I can say is that the brace tighten up my front suspension a lot, less body roll and is flat in a 180 turn doing 50 getting on the hwy. Say what you will but I think for autoX its a good upgrade, for straight line = no benefits

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    Moderator 35th-ANV-SS's Avatar
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    Quote Originally Posted by pajeff02 View Post
    How much difference?
    Let's not forget the same car on the same DYNO on the same day can net different results. Can't see how little of a difference there was can be attributed to the spacer based on that....and I haven't even see the DYNO results.

  13. #13
    Moderator 98TransAmWs-6's Avatar
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    Imho your better off getting a tune or better, getting a SD tune than buying a TB spacer.
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  14. #14
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    Quote Originally Posted by 35th-ANV-SS View Post
    Let's not forget the same car on the same DYNO on the same day can net different results. Can't see how little of a difference there was can be attributed to the spacer based on that....and I haven't even see the DYNO results.


  15. #15
    None Shall Pass Knight's Avatar
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    Quote Originally Posted by 35th-ANV-SS View Post
    Let's not forget the same car on the same DYNO on the same day can net different results. Can't see how little of a difference there was can be attributed to the spacer based on that....and I haven't even see the DYNO results.
    Exactly what I was thinking.

  16. #16
    Insurgent Hunter dethinboots's Avatar
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    His dyno results said an almost 5hp difference. I don't know how accurate that is to the mod but its interesting none the less. Plus it's only like 50 bucks.

  17. #17
    None Shall Pass Knight's Avatar
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    Without consistant results from multiple dyno pulls with and without the spacer, I definately wouldn't attribute a 5 hp difference to the spacer. There are far better, proven products I'd look at purchasing first. But to each his own.

  18. #18
    Insurgent Hunter dethinboots's Avatar
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    Parts like what?
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  19. #19
    Spaz is My Mentor SMWS6TA's Avatar
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    LS6 intake over LS1
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    Port & polish TB from S2 Performance or even a BBK TB
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    Underdrive Pully

  20. #20
    Insurgent Hunter dethinboots's Avatar
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    The pp on the throttle body would be great. From what I'm reading though the underdrive pulley doesn't give that much and cab possibly be detrimental to your engine. Thoughts?

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