Thread: Phenolic Throttle Body Spacer [*]

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  1. #1 Phenolic Throttle Body Spacer [*] 
    GTX Level Member webracin's Avatar
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    This is for the installation of the Phenolic Throttle Body Spacer for the Pontiac Grand Prix. The full write-up can be found here



    webracin

    2001 Grand Prix GTP
    ZZP HUB 3.2 3.4, ZZP 8 Rib conversion, JC 3" DP Gen 2 cat & U-bend Delete, Accel Super Stock 8mm wires, DHP 1.5, 180* Thermo, Throttle Spacer, SS Intercooler, ZZP Fuel Rails, SLP CAI w/K&N Cone, Dynomax cat back, ZZP Tranny.

    2000 Grand Prix GTP Daytona K&N, Flowmasters
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  2. #2  
    SE Level Member Sinister Drag Designs's Avatar
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    very nice write up...


    the problem is this mod is not somthing you would want to do.
    its been provern time and time again with infered heat guns that you are keeping your TB cooler, but you are heating up the blower. Which is more important?
    these have been the source of many coolant leaks into TBs.
    many years ago these were all the rave, but now most vendors will suggest against them. we have seen a few in person fail(cause leaks) even when installed correctly.

    wrapping your crossover pipe with header wrap will keep throttle body temps down just the same without heating up the blower and will also keep underhood temps down.

    thats for another write up tho
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  3. #3 Re: Phenolic Throttle Body Spacer [*] 
    SE Level Member 04DetroitLS's Avatar
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    ya but its a nice spot to run a 35 shot to cool your intake charge
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  4. #4 Re: Phenolic Throttle Body Spacer [*] 
    SS-DD Level Member IndeedSS's Avatar
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    I have another one of these ready to go on. I ran one of these a long time before removing for a different mod level. I never had a coolant leak and it never warped.I believe mine was the second generation spacer though.

    I now have a ZZP machine LIM from my IC days and the coolant passages are block anyway. No chance of a coolant leak.

    What I want to know is how a spacer makes the blower hotter?
    04 Indy SS build #972 - Traded
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  5. #5 Re: Phenolic Throttle Body Spacer [*] 
    GT Level Member 04CompG's Avatar
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    Want to bring this ttt because I was just about to order a TB spacer. So are they good or bad? I don't see how they could be bad or how they could caused the blower to heat up.
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  6. #6 Re: Phenolic Throttle Body Spacer [*] 
    Donating Users GeddyLee's Avatar
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    I got mine from PFYC. And I have NOT had one problem with mine! To answer your question about the blower heating up. It is not necessarily the heat of the blower, but the spacer helps to limit the heat temps on the TB. The barrier offers a little protection against the heat of the SC. However if you dont have one of those crossover shields that sits between the bottom of the TB and the top of the cross over pipe, its kind of a mute point.

    I have both the crossover shield and the TB spacer myself. I cant give you accurate by the numbers reduction in heat, but I am SURE its less than without any of that. Will it gain those big HP gains? Probably not. But it will help in the littlest of ways. And every little bit helps

    James Shafer
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  7. #7 Re: Phenolic Throttle Body Spacer [*] 
    GT Level Member 04CompG's Avatar
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    thanks for the response.

    by crossover heat shield you mean a Throttle body heat shield? Like the ones they sell for $30-40?
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  8. #8 Re: Phenolic Throttle Body Spacer [*] 
    SS-DD Level Member IndeedSS's Avatar
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    I've ran the TB spacer in the past and have had no problem with it. In fact in a couple of weeks when I do my intercooler install, I'm putting another TB spacer back on.

    The crossover has a heatsheld in the stock condition. There is a TB heatshield available and they work pretty well too. I'm using one right now, however it doesn't work near as well as the TB Spacer.
    04 Indy SS build #972 - Traded
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  9. #9 Re: Phenolic Throttle Body Spacer [*] 
    SE Level Member TehGTP's Avatar
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    http://www.zzperformance.com/downloa...acer_Study.pdf

    im on the fence about it right now, but this seems to suggest its not so bad???

    anything other than hear-say
    2007 Corvette Z06 - BFD Cam / E85 / milled & fixed heads
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  10. #10 Re: Phenolic Throttle Body Spacer [*] 
    Donating Users GR8racingfool's Avatar
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    Quote Originally Posted by 04DetroitLS View Post
    ya but its a nice spot to run a 35 shot to cool your intake charge

    Thats what I did but it was a 65 shot.

    I still have it too, its on my old engine just sitting there with the nitrous jet still screwed into it.

    I still have a throttle body spacer, but its made of billet aluminum, and is more of an adapter plate to bolt my LS1 TB onto my GenV rather than a spacer to cool things off.

    Header wrap...worst thing ever invented for headers, end thread. I would never put it on my car, or anyone else's, even if its only on the cross over and nothing else.

    Heat shields...talk about as big of a gimmick as the next thing.

    ~F~
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  11. #11 Re: Phenolic Throttle Body Spacer [*] 
    I AM PEWPIN! rynoman03's Avatar
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    Quote Originally Posted by GR8racingfool View Post
    Thats what I did but it was a 65 shot.

    I still have it too, its on my old engine just sitting there with the nitrous jet still screwed into it.

    I still have a throttle body spacer, but its made of billet aluminum, and is more of an adapter plate to bolt my LS1 TB onto my GenV rather than a spacer to cool things off.

    Header wrap...worst thing ever invented for headers, end thread. I would never put it on my car, or anyone else's, even if its only on the cross over and nothing else.

    Heat shields...talk about as big of a gimmick as the next thing.

    ~F~
    You dislike the Header wrap because of it causing headers to rust faster or what? Enlighten me Farns.
    1999 GTPHP Tuned, Ported SC/TB, 42#'s, SSAC's, ZZP Modded 1.9's/LS6 Springs/Manley's, TransGo Shift Kit, Poly Uppers, KYB GR2's/Springtech's. - 231k and traded it in. - Gone
    2000 GTP: XP, P&P'd Heads, N*\Lq4 MAF, GenV, 42#'s, PRJ Rails\FPR, Racetronix, TEP w/ 3.29 Gears, 300m, 7/8" chain, SSAC's. - Collecting dust in my garage.
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  12. #12 Re: Phenolic Throttle Body Spacer [*] 
    Donating Users GR8racingfool's Avatar
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    Header wrap does its job, but at a big price.

    Wrapping stock manifolds, or after market headers holds in too much heat and causes them to split and crack almost every time. Ya, it keeps down under hood temps. But is it worth it to scrap a pair of headers from one of our cars? For what they cost....not worth it to me anyway.

    If anything, have them coated, and call it a day.

    Just my $0.02 on that.

    ~F~
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  13. #13 Re: Phenolic Throttle Body Spacer [*] 
    GrandPrix Junkie Sabrewings's Avatar
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    Quote Originally Posted by GR8racingfool View Post
    Heat shields...talk about as big of a gimmick as the next thing.
    Not a gimmick depending on their application. There's a reason all the stock parts have aluminum heat shields... To protect a lot of the nearby components from the cooking radiant heat of the exhaust. If they didn't do much it would be cheaper for the manufacturer to just delete them from the design.

    Similar setups are used in jet engine housings to protect sensitive equipment from radiant heat and it works well. Standing near a jet engine, with a fairly thin square of aluminum hold it in front of your face and the heat is gone.

    Aluminum reflects nearly all of the infrared energy that strikes it, so it offers plenty of protection from radiant heat. Though, it does nothing in the way of stopping convection.
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  14. #14 Re: Phenolic Throttle Body Spacer [*] 
    GXP Level Member Blown97's Avatar
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    Interesting!!!
    3.4", 3" cated DP, SLP Air box, TB spacer, 180* Thermo, "Bilemke Tuning".

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