custom intake manifold

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  • latemodelnewbee
    • Jun 2007
    • 227

    #16
    Originally posted by Dave96z34 View Post
    Mount it on your air bag thats always a fun place to put it.
    You can buy a subwoofer that mounts to the steering wheel which makes for a nice painful death when you get in wreck
    68 El camino 454 speed muncie 3.90 posi 12 bolt,
    80 Monza Spyder nasty buick 231/3.8l v6 200-4R 3.73 posi.
    60 Impala 2 door hardtop L79-327 T56 4.11 posi.
    83 wagoneer torque pig AMC 360 hydradrive (gm turbo 400 with stock sb chrysler bellhousing boltpattern) dana 20 transfer case dana 60 front GM 14 bolt rear. 401 in the wokrs
    91 Z34 now has a hm284. and belly pan in the works

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    • d.o.h.c
      • Jun 2004
      • 981

      #17
      WOuld a turbo benefit from a direct port manny?


      WWW.OverKillEngineeringMotorsports.com

      Comment

      • z34phoenix
        • Jun 2005
        • 469

        #18
        yes it would but the 96 manifold's long runers will help low end tq even with a turbo

        Comment

        • series8217
          • Dec 2004
          • 387

          #19
          Settle down guys. Did you guys even see my thread or my dyno post? I cut my manifold about the same as his when I made my custom intake. My torque peak is at 4800 RPM. I have 200+ wheel ft-lbs from 2200 RPM to 5750 RPM. HP peak at 5800 RPM. This is with stock cam timing. You can't argue much with real world results.

          Pics here:

          Dyno graph here:

          Comment

          • Dave96z34
            • Apr 2005
            • 624

            #20
            That graph is not vary blanced.

            96 Z34 3.4 SC DOHC Getrag, 284 5sd manual transmission, stage 3spec clutch, 97 engine, 97 pcm, S3 intercooler 1 of 1 Roots SC LQ1 in the world 8.5 psi.

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            • d.o.h.c
              • Jun 2004
              • 981

              #21
              Looks perrrrrty though. Who makes these. How much?


              WWW.OverKillEngineeringMotorsports.com

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              • Juglenaut
                • Dec 2003
                • 1130

                #22
                Make then run long enough so you can make ram air, instead of to the rear make it so the go forward. heh ram-air ompa.
                I am back

                Mechanical/Service Technican

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                • z34phoenix
                  • Jun 2005
                  • 469

                  #23
                  thing that makes runing the manifold to the front hard is you would need to custom make a new flange and pretty much make an entire upper from scratch

                  these designs are still custom but use the original flange and some of the runer... these are the harder/expensive parts of building a custom upper.

                  Comment

                  • series8217
                    • Dec 2004
                    • 387

                    #24
                    Originally posted by Dave96z34 View Post
                    That graph is not vary blanced.
                    Graph reading 101: Look at the scale.

                    The torque is between 200 and 220 ft lbs at the wheels from 2200 rpm to 5800 rpm.

                    Also note that all those torque dips are on the stock motor as well. This intake dominates the stock manifold.
                    Last edited by series8217; 01-27-2008, 05:43 AM.

                    Comment

                    • series8217
                      • Dec 2004
                      • 387

                      #25
                      Originally posted by d.o.h.c View Post
                      Looks perrrrrty though. Who makes these. How much?
                      Nobody makes them. I built it myself..
                      It's not very hard if you have access to a TIG welder and a good bandsaw. I don't think you could farm it out to some random shop without them charging you mucho $$$ though. It takes a lot of time to get the pieces to fit right, then do all the little things like adding the vacuum fittings on the bottom and whatnot..

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