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  1. 11-06-2007, 08:22 PM #1
    finalday7
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    Default Anyone who owns a throttle body spacer??

    Ok I've heard good things and bad things (mostly bad) about TBS. I mean, do they work at all. I've heard that on the f150's people saw no gain at all, but are these GM's different. I was just checking a sport truck mag website and they said that there beneficial when you have an aftermarket intake (which I will). So is anyone on here running one and what do you think?? Thanks
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  2. 11-07-2007, 09:41 PM #2
    unplugged
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    Yeah, I'm on the fence about the spacers too. Having run two 4bbls with a tunnel ram on a 390 BB (yeah it was a F@rd) I know that lengthening the intake can help, but I still doubt any gains by just raising the TBI. For the money I'd buy a K&N filter first.
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  3. 11-08-2007, 10:52 AM #3
    stylinfosho
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    Throttle body spacers show little to no gain but what they do is make a loud hissing sound under the hood.
    99 silverado Built 4l60e, Headers, true duals, 4.10s, custom tune, elctric fans, K&n
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  4. 11-08-2007, 07:58 PM #4
    finalday7
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    Well I def. don't want a loud hissing sound.
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  5. 11-08-2007, 09:23 PM #5
    Cableguy
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    Default

    He's right spacers work like crazy with a carb but do sqwat for a TBI



    Jamie

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  6. 12-06-2007, 09:46 AM #6
    04SilveradoMykk
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    No gains, I just ditched my spacer. But everyone is right, they do whistle. And it changes pitch with RPM, sounds like a little turbo spooling up.

    On carb and TBI, there is a benefiet... or any wet intake system. But dry intakes like whats on modern EFI where the fuel injector is located down by the intake valve. Spacers don't work.


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  7. 12-06-2007, 04:54 PM #7
    Crawdaddy
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    Default

    I was considering dropping one on my 91 Chevy 350 TBI motor. I have been reading good and bad things about them and have been holding off on it. I'm in it more for the better fuel mileage, but if I can stomp into it and get more power, I ain't gonna complain
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  8. 01-06-2008, 12:05 AM #8
    sierraman
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    my friend has a 95 z71 with a tbs, he said it was a big waste of money

    Andrew
    2006 gmc sierra, 4.8l, gibson headers, flowmasters exhaust, hypertech power programmer,4.10 gears, 3 inch rough country suspension lift w/ 285/70/17 cooper disoverer stt's, tinted windows, westin grill gaurd, herculiner bedliner, black fender flares, HID headlights,black painted front bumper
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  9. 01-08-2008, 06:32 AM #9
    maxumpower
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    Default

    I have one in my 1991 Blazer (pictured) and didn't notice any gain or noise. I guess if you add it to other stuff to help performance it will do something.
    Mine just adds color under the hood.

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