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  • THE intake !

    Yup, it's on a Fiero, but look at the numbers. It could use some aesthetic upgrading, but the setup is about making power.http://www.fiero.nl/forum/Archives/A...-2-014612.html
    I'm planning on doing this to my hybrid 3.4, should be pretty interesting.
    MODS:<br />3.4,Crower cam, K-motion valvesprings, Heddman Longtubes, BBK AFPR, Accel Coil, 36mm/23mm Sways, Boxed LCAs/Panhard bar, Mutant Nitrous wet kit, Mr. Gasket Cutout, 10.02 1/8 mile at 67.2 mph UNTUNNED no spray

  • #2
    Bah...G-tech is a load of crap.
    He could run it again and get 250 hp...
    You arent getting 40 hp out of an intake...unless the air is somehow being forced in from something I'm not seeing.
    Shawn<br />2002 Silver W68 Firebird

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    • #3
      easiest waty to do that is/the 2.8/3.1 middle plenums.
      1978 Formula 461 in progress of being built :rock:
      2013 Ram 1500 Big Horn

      former owner of 85 bird w/ 2.8 - 3.4 - 3800 II - 5.0
      94 comero 3.4

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      • #4
        It can and does (although, I agree with the G-tech thing). A converted 2.8-3.4 has much room for improvement. I know that slapping a 2.8 intake on a 3.4 gives you about 20 extra Ft lbs. The runners are nearly five inches longer than the 3.4. You'd be surprised at the restriction in these things. What the guy has done is boost his upper RPM power while lowering his torque. The inverse could be accomplished by lengthening the runners by about 4 inches.
        Long Skinny runners=low rpm power
        short fat runners=high rpm power
        By altering the intake, you can easily manipulate the torque output of your motor. Always remember that a power curve you can't use (like a 5000 RPM spike) is worthless in racing (unless it's like circle track...). What you want is a flat torque curve, with a peak horsepower rpm just before shifting rpm. This allows you to be in you powerband nearly constantly.
        MODS:<br />3.4,Crower cam, K-motion valvesprings, Heddman Longtubes, BBK AFPR, Accel Coil, 36mm/23mm Sways, Boxed LCAs/Panhard bar, Mutant Nitrous wet kit, Mr. Gasket Cutout, 10.02 1/8 mile at 67.2 mph UNTUNNED no spray

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        • #5
          All I can say is I'm runing a 3.4 intake manifold and a 2.8 plenum with upper and lower spacers for a reason, well a few reasons.
          The spacers make room for a fuel rail tap and should help me use the power band of my crane cam better.
          It's all on my car domain site.
          \'85 Z28, T-tops new LG4 and TH700<br />\'85 3.4L 5-speed<br />mods: <a href=\"http://www.cardomain.com/id/oil_pan_4\" target=\"_blank\">http://www.cardomain.com/id/oil_pan_4</a> the nitrous exhaust O2 safety, pg 3. <br />Areo space materal engineer wantabe

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