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Recommended # injector/fuel pump for my app?

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  • Recommended # injector/fuel pump for my app?

    Like the topic says, i'm looking for right # injector for my setup. And for the right fuel pump. I'd imagine the dyno tuning place would be the best place to ask. But I think i can get a good idea of what I might need if i ask here. I want to try to eliminate a fuel problem. I don't want to run too lean.

    Some of u know what I'm doing. But not all of you.
    Just for a recap of what i'm doing. Here it goes

    95 grand prix. swapping a full 3400. obd 1.0 91-93 dohc pcm swap. Heads,lim,uim, and TB P&P. Very aggressive CAM. No specs yet. Crane gold series 1.6 roller rockers. S&S headers. 75 shot of nitrous zex. full bottom end rebuild with forged pistons. molly rings. shot peening the rods. Plus much more. 2.5'' cat back exhaust. All of these things I have currently done except for the heads and bottom end rebuild. Heads are at Ben's place. As soon as the heads get in i'm getting the bottom end rebuilt. plus a few more things which I can't think on the top of my head.



    Would my stock 3100 fuel pump be fine? should I put a differnet fuel pump? stock 3400 injectors fine? or larger injectors?
    Corey's 95 GP - Engine/Trans installed
    02 GTP - 90* > Failboat
    www.blackbombshell95.com

  • #2
    RE: Recommended # injector/fuel pump for my app?

    Pump: http://store.summitracing.com/defaul...4&autoview=sku

    Injectors: http://store.summitracing.com/defaul...1&autoview=sku
    '99 Z-28 - Weekend Driver
    '98 Dodge Neon - Winter Beater
    '84 X-11 - Time and Money Pit
    '88 Fiero Formula - Bone stock for now

    Quote of the week:
    Originally posted by Aaron
    This is why I don't build crappy headers. I'm not sure, I don't know too much about welding.

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    • #3
      RE: Recommended # injector/fuel pump for my app?

      Thats just retarded. How in the fuck are you going to tune 98 pound injectors for an NA 3400 using OBD1.
      Ben
      60DegreeV6.com
      WOT-Tech.com

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      • #4
        FLOOD :P

        Run stock injectors with a wet kit.
        1993 EXT. CAB, 3.4L V6 TBI, 5spd manual. Sonoma
        1990 4Door, 3.2L V6 TBI, 5spd manual. 4X4. Trooper
        Because... I am, CANADIAN

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        • #5
          Thats just retarded. How in the fuck are you going to tune 98 pound injectors for an NA 3400 using OBD1.
          I almost died when I read that. ROFL.

          ty BTY.

          FUEL PUMP? I know zex makes a fuel resevoir between the tank and the injectors just incase the pump and get enough fuel.
          Here is a link.
          Corey's 95 GP - Engine/Trans installed
          02 GTP - 90* > Failboat
          www.blackbombshell95.com

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          • #6
            he must own a gas station. lol
            95 Beretta Z-26
            Don't need nitrous to go fast.
            Global peace through deadly force!

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            • #7
              I've seen larger injectors "work" with fuel pressure ajusments and driver (FET) upgrades.

              30-45lbs injectors should be plenty.
              YOu know dam well your pump is a weak suck. A walbro 255 HP pump should be plenty. Or something similar in flow and pressure.

              I don't know how the 3*00 fuel rail is...but on my MPFI fuel rail, I had to port out the fuel feed pipes that feed the fuel rails from the fuel pressure regulator.
              88 Beretta GTU turbo . 90 Black ASC/McLaren TGP, awaiting 4t80. 2003 Grand AM se 3400/4t45 daily grind.

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