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Thread: TB Porting

  1. #1
    Join Date
    Jan 2006
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    621
    Thinking about doing some mild porting on my TB. Does anyone have any suggestions,tips,advice, or reasons why I shouldn't before I get started.

    [1/8 mile E.T. - 8.23 @ 82.86 mph w/1.82 60'] '98swb,4/6drop,20"RozziDeeps on 275/40ToyoProxes '98LS1/4L60E,TRCheaTR cam,Ported TB,Billet MAF ends,MSD8.5 superconductor wires,S&P midlengths,!EGR,!cats,2 1/2" true duals w/X-pipe,Dynomax Ultraflows,TCI 3000,billet servo,TCI deep aluminum pan,3.73's w/Auburn posi; Eclipse CD, Rockford 6 1/2's, Memphis 12's, Punch 200 ix, Punch 500x

  2. #2
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    Jan 2006
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    Well I'm already done with it now. Thanks for the help anyway.

    [1/8 mile E.T. - 8.23 @ 82.86 mph w/1.82 60'] '98swb,4/6drop,20"RozziDeeps on 275/40ToyoProxes '98LS1/4L60E,TRCheaTR cam,Ported TB,Billet MAF ends,MSD8.5 superconductor wires,S&P midlengths,!EGR,!cats,2 1/2" true duals w/X-pipe,Dynomax Ultraflows,TCI 3000,billet servo,TCI deep aluminum pan,3.73's w/Auburn posi; Eclipse CD, Rockford 6 1/2's, Memphis 12's, Punch 200 ix, Punch 500x

  3. #3
    Join Date
    Dec 2005
    Location
    Dallas, TX
    Posts
    511
    how did it go and what did you use to do it??? i polished mine and was thinking about porting but was kinda scared.
    2001 GMC Sierra C3 with the 6.0! Vararam King Cobra, TB bypass, No cats with two 3 inch cut outs and thats it for the motor. FOR NOW ATLEAST!!
    9.5 in the 8 mile

    6000K xrtalight h.i.d kit


  4. #4
    Join Date
    Jan 2006
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    621
    I used a dremel with a sandpaper roll. I took off the ridge at the bottom even to the bore and blended it in all the way around. I also ground off the backside of the screws that go through the blade & shaft as well as flattening out the shaft quite a bit on the backside. I did the bumpstop mod too. I was pleasently suprised with the throttle response afterwards, I didn't think it would make a noticeable improvement but it did.

    [1/8 mile E.T. - 8.23 @ 82.86 mph w/1.82 60'] '98swb,4/6drop,20"RozziDeeps on 275/40ToyoProxes '98LS1/4L60E,TRCheaTR cam,Ported TB,Billet MAF ends,MSD8.5 superconductor wires,S&P midlengths,!EGR,!cats,2 1/2" true duals w/X-pipe,Dynomax Ultraflows,TCI 3000,billet servo,TCI deep aluminum pan,3.73's w/Auburn posi; Eclipse CD, Rockford 6 1/2's, Memphis 12's, Punch 200 ix, Punch 500x

  5. #5
    Join Date
    Apr 2005
    Posts
    454
    tell me more about this bumpstop you speak of
    1999 GMC Sierra black reg cab short bed SLE Z71 5.3 <--CARDOMAIN PICS
    NELSON 93 hot tune, 02 PCM, VOLANT Ram air intake, MSD wires, ACdelco iridium plugs , Edelbrock ceramic shorty headers, jegs off-road y pipe, Dynamax int pipe, 3" Magnaflow Exhaust with turndown, EGR removal, throttle body bypass, vette servo, long servo pin, performance 4th apply piston, B&M shift kit, SLP 160* thermostat, LS1 Fans, NELSON harness, ported and polished throttle body (did it myself, for free lol)..... _______? cam is next as soon as i stop spending all my money

  6. #6
    Join Date
    Jan 2005
    Location
    Humble/Houston TX
    Posts
    2,586
    <div class='quotetop'>QUOTE(metalmulisha777 &#064; May 14 2006, 04&#58;32 PM) [snapback]53106[/snapback]</div>
    tell me more about this bumpstop you speak of
    [/b]
    shaving down the bumpstop so the blade will open 100%. dont do this unless you know what your doing&#33; if you go too far it will help more than it helps. you need a volt meter hooked to it. search around. theres instructions somewhere to get it perfect. its either here...pt.net or ls1tech.

    old mod list: H/C/I/N/E/G 408
    new mod list: 5.3, gears/posi, mufler and tune : (

  7. #7
    Join Date
    Jan 2006
    Posts
    621
    Here&#39;s a link to it. I haven&#39;t noticed any ill affects. I think it will cause problems if you go too far.

    http://www.installuniversity.com/install_u...rsity/index.htm

    [1/8 mile E.T. - 8.23 @ 82.86 mph w/1.82 60&#39;] &#39;98swb,4/6drop,20"RozziDeeps on 275/40ToyoProxes &#39;98LS1/4L60E,TRCheaTR cam,Ported TB,Billet MAF ends,MSD8.5 superconductor wires,S&P midlengths,&#33;EGR,&#33;cats,2 1/2" true duals w/X-pipe,Dynomax Ultraflows,TCI 3000,billet servo,TCI deep aluminum pan,3.73&#39;s w/Auburn posi; Eclipse CD, Rockford 6 1/2&#39;s, Memphis 12&#39;s, Punch 200 ix, Punch 500x

  8. #8
    Join Date
    Jan 2006
    Posts
    621
    <div class='quotetop'>QUOTE(TXsilverado &#064; May 14 2006, 05&#58;39 PM) [snapback]53107[/snapback]</div>
    shaving down the bumpstop so the blade will open 100%. dont do this unless you know what your doing&#33; if you go too far it will help more than it helps. you need a volt meter hooked to it. search around. theres instructions somewhere to get it perfect. its either here...pt.net or ls1tech.
    [/b]
    BTW if it helps more than it helps I guess it&#39;s a win win situation.

    [1/8 mile E.T. - 8.23 @ 82.86 mph w/1.82 60&#39;] &#39;98swb,4/6drop,20"RozziDeeps on 275/40ToyoProxes &#39;98LS1/4L60E,TRCheaTR cam,Ported TB,Billet MAF ends,MSD8.5 superconductor wires,S&P midlengths,&#33;EGR,&#33;cats,2 1/2" true duals w/X-pipe,Dynomax Ultraflows,TCI 3000,billet servo,TCI deep aluminum pan,3.73&#39;s w/Auburn posi; Eclipse CD, Rockford 6 1/2&#39;s, Memphis 12&#39;s, Punch 200 ix, Punch 500x

  9. #9
    Join Date
    Jan 2006
    Posts
    621
    I found this after the fact and I think I&#39;m gonna pull my TB back off & do a complete port like this. It doesn&#39;t look too hard. I just thought I would post it up in case any of you guys wanted to do it also.

    http://www.geocities.com/wilwaxu/throttlebody.html

    [1/8 mile E.T. - 8.23 @ 82.86 mph w/1.82 60&#39;] &#39;98swb,4/6drop,20"RozziDeeps on 275/40ToyoProxes &#39;98LS1/4L60E,TRCheaTR cam,Ported TB,Billet MAF ends,MSD8.5 superconductor wires,S&P midlengths,&#33;EGR,&#33;cats,2 1/2" true duals w/X-pipe,Dynomax Ultraflows,TCI 3000,billet servo,TCI deep aluminum pan,3.73&#39;s w/Auburn posi; Eclipse CD, Rockford 6 1/2&#39;s, Memphis 12&#39;s, Punch 200 ix, Punch 500x

  10. #10
    Join Date
    Jan 2005
    Location
    Humble/Houston TX
    Posts
    2,586
    <div class='quotetop'>QUOTE(motoxlifer &#064; May 16 2006, 12&#58;29 PM) [snapback]53254[/snapback]</div>
    I found this after the fact and I think I&#39;m gonna pull my TB back off & do a complete port like this. It doesn&#39;t look too hard. I just thought I would post it up in case any of you guys wanted to do it also.

    http://www.geocities.com/wilwaxu/throttlebody.html
    [/b]
    thats the best write up ive seen.

    old mod list: H/C/I/N/E/G 408
    new mod list: 5.3, gears/posi, mufler and tune : (

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