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  • TB Bypass???

    stupid question... i've read alot about the throttle body bypass on ls1.com for the ls1 engine 'n i just assumed that i could do the same on my car... i went out, got the parts, 'n then looked at my engine... TB bypass not quite possible on the 3.8L is it??? anyone else run into this? just checking... thanks!

    neil O.
    1999 Pontiac Firebird W68 Ram Air<br />3800 Series II V6 A4<p>Appearance: <br />Black, Ram Air Hood, Ground Effects, T-Tops, Silver Decals by Firebat, <br />Stock 16\" Chrome 5-Star Wheels, Chrome WS6 Dual Exhaust Tips<p>Performance:<br />Yank Super Thruster 3500 Torque Converter, 3.42 gears w/ OEM Zexel Torsen LSD, Jet Stage II chip, 180* Thermostat, B&M Transmission Cooler, Whisper Lid, K&N, Free Ram Air, 1/2\" Raised Airbox, Custom 2.5\" Catback Exhaust w/ Flowmaster 80 Series Muffler, Nitto 555R Drag Radials (back), Goodyear Eagle GSC 245/50ZR16 (front)

  • #2
    You're talking about blocking the coolant flow to the tb, to keep it cooler, right?

    The coolant flows through 2 small (pinkie size) passages in the intake, through a narrow channel in the tb that is connected to the 2 openings. The channel is fully open, the gasket forms one side of it.

    Some people have put a custom gasket in there to block off the 2 passages. I filled up the channel in the tb with Devcon (its like JB Weld) and used the regular gasket. It still has the openings, but nothing can flow through the tb. The advantage of the custom gasket is ease of converting back. I would have to mill out the Devcon to convert back.

    I left a tiny bit of the passage open, supposedly the design behind this is to keep the tb from icing in cold weather on startup, so I thought I'd keep a little of it.
    \'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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