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Question about injectors for a boosted 3.4 dohc

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  • Question about injectors for a boosted 3.4 dohc

    I've got a turbo lq1 I'm putting into a Fiero and have been trying to find injectors. I was wondering what injectors to run and where I might be able to find them. The setup I'm planning on running is 10-12 lbs of boost with a T3/T04E 60 A/R turbo on a stock motor with ARP studs on the mains and rods.

  • #2
    I'm doing something similar in my LQ1 Fiero. I've got a GT32-76R and the calculations I made said I needed 42 lb injectors. I got a flow matched set of Bosch injectors on Ebay for a decent price.

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    • #3
      42.5 lb/hr injectors will max out around 400 crank horsepower. You should be close, but likely okay.

      Tim
      1995 Z34 - T04E "60" trim, 42.5 lb/hr injectors, AEM WBO2, FFP UD&DB, 3" exhaust, 2800 stall, shift kit, tranny cooler, Powerslot, Hawk HPS, rear disc conversion, KYB, Eibach, HMS F&R STB, Fittipaldi Force 18" wheels, big stereo, lots more coming eventually...
      325 whp 350 lb-ft

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      • #4
        i have the 42.5# injectors for a 3800 in mine. You can use the same injectors or i think they have 65# ones as well. I got mine from ZZP. Keep in mind you have to tune the ECU for the injector size. I converted from OBDI to OBDII (1996) with DHP. DHP is no longer around so if you have a 5spd trans you can do a 1997 harness and ecu and use HP Tuners. HPT doesn't support 1996 LQ1/4T60, and the 1997 ECU uses a 4T65 trans... but is tuneable with HPT. If you have a 1991-1993 LQ1 you can burn a custom chip.. 1994-1995 LQ1 is from what i understand not as easy to make a chip for... Hope this helps.

        S
        Shane "RedZMonte"
        2004 Corvette Z06 Commemorative Edition -VIRGIN
        1995 Monte Carlo Z34 14.38@101mph, 331hp/355tq
        -Turbonetics T04E Super 60 Turbo, 2.5" Borla Catback, OBDII, 42.5# Injectors
        2004 Subaru WRX STI -Lightly Modded (SOLD)
        1994 Lumina Z34 -VIRGIN (SOLD)
        1992 Lumina Z34-VIRGIN (RIP)
        1992 L67 Lumina Z34 (SOLD)
        1990 Turbo Grand Prix (SOLD)

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        • #5
          Awesome thats what I needed to know thanks for all the help guys.

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