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ported throttle body

This is a discussion on ported throttle body within the External Engine forums, part of the LSx Technical Help Section category; Originally Posted by GatorSS I find it hard to believe that those who have appropriately ported & polished the throttle ...

  1. #41
    Make real real sure Johns00Z28's Avatar
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    Quote Originally Posted by GatorSS View Post
    I find it hard to believe that those who have appropriately ported & polished the throttle body, modified the bump stop, and smoothed the throttle blade have realized absolutely no performance increase whatsoever, not even in throttle response; unless there are some other underlying issues hindering it. Just my $0.02 worth.
    Which is why I sent mine out to be done professionally.

  2. #42
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    Quote Originally Posted by Johns00Z28 View Post
    Which is why I sent mine out to be done professionally.
    Wise decision, John. I'm a firm believer in doing the things you can do very well yourself, those at which you are inexperienced or are still "surfing the learning curve" so-to-speak, let a pro handle it (and watch him carefully while he does it if he will let you). Best wishes on it.

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    Member qwk93ta's Avatar
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    Quote Originally Posted by Johns00Z28 View Post
    Which is why I sent mine out to be done professionally.
    I did the same....and I feel it was worth the $80 I spent.

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    And a good scan tool will also show you 100% throttle position if you don't want to try the voltage method to verify.

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    We'll be back... GatorSS's Avatar
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    Quote Originally Posted by qwk93ta View Post
    I did the same....and I feel it was worth the $80 I spent.
    Excellent point, too. I'm pretty good with a Dremel and various epoxies working on hobbies from time to time, but it would take me at least 2 hours to do one (probably more like 3 to 4) reasonably well, but I could take that same 2 hours working in my profession and make a minimum of $300. So, if I could get a pro to do it for $80 (and do a better job than I), hey, that's a slam dunk decision! Yes, definitely well worth that $80!

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    Member RealLiveMD's Avatar
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    This topic is becoming beat to death. Hell, i wish I had realized a few more ponies... but I didn't. Overall, the bump stop mod is free, so do it. You can always put in a screw if you mess it up. The blade on mine looks cool and smooth; but..useless. Anyway. feel free to buy parts and try them yourself. I've tried everything except an underdrive pulley. Primarily, I heard that they add a couple of horses but some have problems with their electrical devices. So, I stayed away.

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    Quote Originally Posted by GatorSS View Post
    I find it hard to believe that those who have appropriately ported & polished the throttle body, modified the bump stop, and smoothed the throttle blade have realized absolutely no performance increase whatsoever, not even in throttle response; unless there are some other underlying issues hindering it. Just my $0.02 worth.
    THIS. is what I have experienced, felt no difference at all, done by SHANER too, he did a great job, just couldnt really notice the difference.

    did the TB along with tune by Frost, both were installed before the car came back on teh road tho from the winter, possibly why i couldnt notice the difference

    because i hadnt driven it in like 7 months.

    idk

  8. #48
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    did anyone flow their ported TBs? i just did mine tonight ... i started with 575 and went to 606 after i ported ... i havn't dynoed yet though.

    i was pretty stoked on how good my port job was since i never have done it before

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    Quote Originally Posted by tep98ws6 View Post
    did anyone flow their ported TBs? i just did mine tonight ... i started with 575 and went to 606 after i ported ... i havn't dynoed yet though.

    i was pretty stoked on how good my port job was since i never have done it before
    Nice improvement, did you do the porting yourself?

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    Quote Originally Posted by Y2KPewterSS View Post
    Nice improvement, did you do the porting yourself?
    i did! i was so excited since i've never ported anything before. there's like nothing left of it, hah ... i knife edged everything and rounded off everything. im happy with it. i have really awesome throttle response now

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    Quote Originally Posted by tep98ws6 View Post
    i did! i was so excited since i've never ported anything before. there's like nothing left of it, hah ... i knife edged everything and rounded off everything. im happy with it. i have really awesome throttle response now
    Thats awesome, congrats. Did you do anything to the bumpstop?

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    Quote Originally Posted by Y2KPewterSS View Post
    Thats awesome, congrats. Did you do anything to the bumpstop?
    ... i don't think so? should i have?

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    Quote Originally Posted by tep98ws6 View Post
    ... i don't think so? should i have?
    Its not a must, here is an article you might want to look at and play around with.



    http://www.installuniversity.com/ins..._bump_stop.htm

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    Quote Originally Posted by Y2KPewterSS View Post
    Its not a must, here is an article you might want to look at and play around with.



    http://www.installuniversity.com/ins..._bump_stop.htm
    NICE! definitely didn't know about that. i will have to do that

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    Senior Member redbird555's Avatar
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    Btw you dont need a scan tool to do the bump stop. Just put a volt meter into the wires on the tps and manually open the tb to WOT you should get a reading of 4.2xxx to start then file down get as close as u can to 4.7 without going over.

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    I did mine last week with port, knife edge and bump stop.
    I went way over to around 7.8v and installed a M6 grub screw and locking nut.
    Gives a degree of adjustment right on the boarder of engine light on.

    I finally put it on tonight and there's definitely sharper throttle response.
    But that might have to do with me painting it red while it was apart (red goes faster)

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    ^^^LOL

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    Quote Originally Posted by mjr_350 View Post
    I did mine last week with port, knife edge and bump stop.
    I went way over to around 7.8v and installed a M6 grub screw and locking nut.
    Gives a degree of adjustment right on the boarder of engine light on.

    I finally put it on tonight and there's definitely sharper throttle response.
    But that might have to do with me painting it red while it was apart (red goes faster)
    this is tru
    "The Camaro SS looks like it could kick your ass. The Trans Am WS6 looks like its on its way over to do it."

    treat stressful situation like a dog. if you can't eat or hump it, then piss on it and walk away.

    keep your foot in it,till you see god

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