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  • #16
    well, currently I'm running Accel 19# injectors plus a FPR (set at 47psi), and last I remember watching the injector values under load with the scanner, at 88F ambient with 80%+ humidity, running 4200RPM @ 85mph and 99% TPA they were only hitting at about 6ms - 0* knock retard with 45min run time on the motor, too They're no where near even 85%DC.
    But, the way the car runs right now at WOT, you can just feel it wanting more upper end; she's starvin for it
    N-body enthusiast:
    {'87 Grand Am SE - 3.0 90* v6} / {'93 Grand Am LE - 3.3 90* v6}
    {'98 Grand Am SE - 2.4 Q4} / {'99 Grand Am GT1 - 3400 60* v6}

    Current Project:
    {'90 Chevrolet C1500 Sport 350TBI}

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    • #17
      i think the additional fuel flow on the upper end would be better, the newer FPR runs like 55 at WOT IIRC, maybe more

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      • #18
        Oh, I can bump it up if needs be, that's ain't a problem. I'm running a brand new ACD pump assembly at the back that the harnesses have been rewired also. After last year's fiasco with the fuel pumps I was dealing with, I got fed up with shite and threw a new OE unit back in, and just rewired the harness with a little larger gauge from front to back. That Walbro unit was just one big headache, and I decided no need for it on a N/A application. When my original fuel pump died it was cheaper to just replace the pump motor, but then the seembly broke, so I had to buy and aftermarket unit and install the new Walbro in that, and then this and then that . . . you know how it goes sometimes
        N-body enthusiast:
        {'87 Grand Am SE - 3.0 90* v6} / {'93 Grand Am LE - 3.3 90* v6}
        {'98 Grand Am SE - 2.4 Q4} / {'99 Grand Am GT1 - 3400 60* v6}

        Current Project:
        {'90 Chevrolet C1500 Sport 350TBI}

        Comment


        • #19
          Im using the AN fittings to an aftermarket adjustable regulator that lets me bump it up to 70 psi max (keeping it at 65 to give 33# injectors out of 28# 4.2 injectors). I can make a kit setup for it but the regulator isn't cheap to start with. Real nice though:P Im only using one of the AN fittings and keeping the stock feed line with the pulse damper in there.
          Ben
          60DegreeV6.com
          WOT-Tech.com

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