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  • balance shaft

    was talking to a buddy of mine who's a mechanic...he said on some cars you can take the balance shaft outta the engine & gain approx 5rwhp. he has his removed from his 1975 bird, which runs 10's...i dunno what kind of engine is in it, but he said it runs better without the balance shaft, too.

    so anyone done this? is there a kit available to reroute the oil?

    --matt

  • #2
    Yup, you can do it, you need to have the rotating assembly balanced to 50% and plug the rear balance shaft pressurized oil feed with a simple threaded plug. I wouldnt be suprised if you picked up quite a bit more than 5 at the tires though..

    [ October 30, 2003: Message edited by: GTPprix ]</p>
    Chris White<br />1989 Turbo Trans Am #70<br />2004 GTO - Procharged<br />2005 G6<br />2005 Equinox LT AWD

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    • #3
      and then watch your engine shake itself apart...
      Silver \'98 Camaro M5<br />Current MODs:<br />SLP strut tower brace; SLP 1LE swaybars front/back; Powerslot rotors; Hawk pads; Eibach springs; Bilstein SLP shock kit; SLP trans mount; Zexel limited-slip differential; LS1 drive shaft.<br />Possible future MODs:<br />BMR Lower Control Arms; BMR Pandhard Rod.

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      • #4
        <blockquote>quote:</font><hr>Originally posted by morbid:
        and then watch your engine shake itself apart...<hr></blockquote> Not if you have the internals balanced...
        2000 Firebird. Whisper Lid, True duals, TSP mail order tune, Built Tranny , TCI 2800 stall verter, B&M tranny cooler, Eaton LSD, 3.42 gears. Current best ET. 15.232 89.09 MPH 2.175 60ft on stock 3.42\'s and open diff.<a href=\"http://www.geocities.c

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        • #5
          <blockquote>quote:</font><hr>Originally posted by GTPprix:
          you need to have the rotating assembly balanced to 50%<hr></blockquote>

          What is this balancing to 50%?
          \'98 A4 Camaro v6-&gt;v8 conversion, and STS kit next<br />v6: 13.6 Powerdyne, 13.2 150 shot, 13.8 120 shot, 14.3 85 shot, 15.7 stock<br />v8(na): 12.18@113, 392rwhp<br />Moderator on <a href=\"http://www.mtfba.org\" target=\"_blank\">www.mtfba.org</a> and <a href=\"http://www.frrax.com\" target=\"_blank\">www.frrax.com</a> (Road Race & Autocross)<br /><a href=\"http://community.webshots.com/user/johnduncan10\" target=\"_blank\">Car pics</a>, <a href=\"http://www.trscca.com\" target=\"_blank\">TN Region SCCA</a>

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          • #6
            You have the rotating assembly balanced to 50%. Its impossible to achieve a 100% balance on an L36/67. They weigh the piston and rod assembly and attach bob weights of that amount to the crank then spin it over. They remove weight from each side of the crank until it balances out, much like a wheel and tire combo. Thats the easiest way I can put it, if you want to wait two months you can check out my engine build in our magazine.
            Chris White<br />1989 Turbo Trans Am #70<br />2004 GTO - Procharged<br />2005 G6<br />2005 Equinox LT AWD

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            • #7
              Where can we get this kind of work done?

              How would other components like a lightened flywheel from spec help or hurt?

              Thanks, <br />JAM<p>02 Firebird GT

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              • #8
                Any good engine builder, or performance machine shop should be able to take care of that for you [img]smile.gif[/img]
                Chris White<br />1989 Turbo Trans Am #70<br />2004 GTO - Procharged<br />2005 G6<br />2005 Equinox LT AWD

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