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Fast 78mm throttle body?

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Old Feb 28, 2006 | 12:19 PM
  #1  
Lawnboy's Avatar
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Default Fast 78mm throttle body?

hi
I am interested in upgrading my stock 2001 LS1 throttle body,
I like the FAST 78MM
I will still be using my stock 2001 LS6 intake,
i need to know a few things, what is the size of the mouth-opening of my stock ls6 intake, and what is the size of my stock throttle body,
and not the front of it , the back where is mates up to the intake,

does the 78mm T-body match the stock intake mouth-opening?
how much extra power can i see by installing the FAST 78mm
thanks for all your help
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Old Feb 28, 2006 | 12:23 PM
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From: finksburg, MD
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im no expert but from what understand a ported stocker is just as good. and with just a TB you wont much of a gain at all. thats just what i understand from other people telling me the same thing when i asked a similar ? a while back.
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Old Feb 28, 2006 | 12:26 PM
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From: Winston-Salem, NC
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Don't waste your money on the FAST TB, get your stocker ported. Save your cash for some real mods...
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Old Feb 28, 2006 | 12:27 PM
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From: Tempe, Arizona
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he's right, according to ls1 experts a ported stock throttle body is the way to go when under 500 flywheel horsepower.
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Old Feb 28, 2006 | 12:42 PM
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new era performance i believe ports the stockers for 75 bucks.
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Old Mar 1, 2006 | 11:07 AM
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OK i will port my stock one
Thanks alot guys
can you give me some tips on porting my stock Throttle body
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Old Mar 1, 2006 | 11:11 AM
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From: Justin, TX
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There are a couple pretty good write-ups out there on how to do it. I don't know if www.installuniversity.com has one, but that would be a good place to start.

Last edited by orangeapeel; Mar 1, 2006 at 11:33 AM.
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