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  1. #1

    Default throttle body spacers

    Has anyone installed a throttle body spacer? Any noticeable performance / mpg improvement ?

  2. #2
    Master Mechanic TritonBoulder47's Avatar
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    Default

    You won't get any "seat of your pants" HP gains, but you should get some, and you should also gain a little MPG...

    Tim a.k.a. Da' Boulder

    2003 Chevrolet Avalanche Z71 - Custom Emergency Response POV

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  3. #3

    Default

    A lot of it also depends on what motor you have in your truck. If you type throttle body spacer into the search bar, you'll come up with tons of posts about them.
    Scott

    ΜΟΛΩΝ ΛΑΒΕ

    '94 Chevy Suburban K1500
    3" exhaust w/ aero turbine non-baffled muffler
    CFM Technologies TB spacer
    CB w/ 44" whip antenna


  4. #4

    Default

    been using an Airaid spacer for years. Could definitely feel the difference in response (no so concerned with HP). After running it for over a year, i took it out and tested the truck. I'll never do that again.
    99 Silverado - Stock

  5. #5
    Legend 2ToNe04's Avatar
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    makes a difference for carb engine


    useless for fuel injected.


    i will paypal you 20 dollars if you gain 1 hp gain on a fuel injected

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  6. #6

    Default

    TBI motors get a benefit as well.
    Scott

    ΜΟΛΩΝ ΛΑΒΕ

    '94 Chevy Suburban K1500
    3" exhaust w/ aero turbine non-baffled muffler
    CFM Technologies TB spacer
    CB w/ 44" whip antenna


  7. #7

    Default

    So it does nothing for fuel injected at all?
    ИorτнRoαdΛĸ907
    2004 Silverado 1500 - 5.3L V8 Z71 EXT. CAB (DD)
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  8. #8

    Default

    Quote Originally Posted by ИorτнRoαdΛĸ907 View Post
    So it does nothing for fuel injected at all?
    if your looking for HP increase, not really. Throttle response will be a bit better. The spacer's design is only to "swirl" the intake air allowing the fuel to better atomize and burn more of it. That's why it's threaded in the the bore.
    99 Silverado - Stock

  9. #9

    Default

    I've noticed a very small increase in fuel mileage, and small increase in off the line, and throttle response, some say it is worth the money, some say it's not, i think it's preference. Don't expect an increase in HP, because if it does, it wont be enough to notice anything.
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