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Which UIM 3400 3500

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  • Which UIM 3400 3500

    I'm wanting to build a 3.4/3500 hybrid and run 150hp nitrous shoot. My concern is the unequal flow of the 3500 UIM if I use a single injector. Or will I have to use direct port injection or go with the 3400 and a single injector. What is everybodies opinion?
    Also, how can I go about running a solid roller cam? Will the cams in the store work? Will the noise from the solids interfer with a 7730 ECM? ( knock sensor) Were can I find some solid roller lifters that will fit?

  • #2
    I have yet to hear anything about the 3500 and nitrous as far as it being bad... I can't see how the 3400 is much better since the first two runners will see more of the cocktail than the last two anyways... I think the 3500 dumping the intake to the middle should help if anything since the source is technically the center of the intake, regardless if it needs to flow "backwards" to get to cylinders 5 and 6.

    I'll be running a 100 shot on my car soon so I'll let you know if I have any issues.

    Got Lope?
    3500 Build, Comp XFI Cam 218/230 .050 dur .570/.568 lift 113LSA
    Fully Balanced, Ported, 3 Angle Valve Job, 65mm TCE TB, S&S Headers.
    Stage-1 Raybestos/Alto 4t60e-HD, EP LSD, 3.69FDR
    12.61@105 Epping NH Oct 2015 Nitrous 100shot (melted plugs) 13.58@98.8 N/A 3200LBS

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    • #3
      If you wanted to drill and tap your 3500 plenum, I'd think it would be pretty easy to put 6 nozzles by each port the way it's "squarish". More money and plumbing but I bet the gains would be nice.
      sigpic New 2010 project (click image)
      1994 3100 BERETTA. 200,000+ miles
      16.0 1/4 mile when stock. Now ???
      Original L82 Longblock
      with LA1, LX9, LX5 parts
      Manifold-back 2.5" SS Mandrel Exhaust. Hardware is SS too.

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      • #4
        I just dropped 40 bux on a new Fogger V2 nozzle since I broke my other one... No way in hell am I droping 5x that... It's not worth it with a stock bottom end.

        Got Lope?
        3500 Build, Comp XFI Cam 218/230 .050 dur .570/.568 lift 113LSA
        Fully Balanced, Ported, 3 Angle Valve Job, 65mm TCE TB, S&S Headers.
        Stage-1 Raybestos/Alto 4t60e-HD, EP LSD, 3.69FDR
        12.61@105 Epping NH Oct 2015 Nitrous 100shot (melted plugs) 13.58@98.8 N/A 3200LBS

        Comment

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