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Thread: resized injectors

  1. #1
    Senior Member pdasterly's Avatar
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    Default resized injectors

    got my injectors resized, stock 98 z28 bosch design 3.
    The flow sheet says :
    CC 572
    LB 55
    4Bar
    1998 Camaro Z28, forged ls2 sts turbo GtsT76, fmic
    1999 Firebird, forged ls1 procharger p1sc ls9 cam fmic
    1981 El Camino, 5.3 LSX carb, msd 6010
    2011 2SS

  2. #2
    Lifetime Member mr.prick's Avatar
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    How much did it cost?
    512k RoadRunner Firmware 12.14R
    FlashScan V2 Bootblock V2.07.04 Firmware V2.07.22 EFILive V7.5.7 (Build 191) V8.2.1 (Build 181)
    LC-1 WBO2

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  3. #3
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    I also got my 28.8 @ 58 psi exchanged for 36 lb @ 58 psi for 200 shipped. My IDC was 98% at 6200 and I want to spin higher one day. Mine are also bosch design 3 and came with a flow sheet.
    00 GMC,LQ4, Jarrett Faggart pistons, callies rods, Ebay studs, LS9 gaskets, 317's, KBRacing KIT, PT76/75, treadstone intercooler,Eboost2, dual walbro, FIC 75lb, br7ef, Trutrac, Shaftmasters Shaft, 3.5" DP w/4" magnaflow dumped, turbo blanket, Circle D 3200, Jake's built 4l80w/brake, hydroboost, EFILive v2,Lunati dual springs,222/226 cam, cal-tracs, QA1 front shocks, Street/strip Bogarts,Drum swap, Alky-control,MSD8733 936 HP to the tire DD.

  4. #4
    Senior Member pdasterly's Avatar
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    1998 Camaro Z28, forged ls2 sts turbo GtsT76, fmic
    1999 Firebird, forged ls1 procharger p1sc ls9 cam fmic
    1981 El Camino, 5.3 LSX carb, msd 6010
    2011 2SS

  5. #5
    Senior Member pdasterly's Avatar
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    how do i input this into efilive. should i just change the flow rate B4001
    1998 Camaro Z28, forged ls2 sts turbo GtsT76, fmic
    1999 Firebird, forged ls1 procharger p1sc ls9 cam fmic
    1981 El Camino, 5.3 LSX carb, msd 6010
    2011 2SS

  6. #6
    Lifetime Member mr.prick's Avatar
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    I asked the guy @ fuelinjectorconnection.com about doing this,
    and he told me that {B4001} is all that needs to be changed.
    As long as you know what psi they are matched to, and what your FP is
    the spreadsheet should get you the right values.

    Too bad I already have the Racetronix 42lb`s.
    I would rather have the stock injectors re-sized
    instead of having too tweak more than one table.
    512k RoadRunner Firmware 12.14R
    FlashScan V2 Bootblock V2.07.04 Firmware V2.07.22 EFILive V7.5.7 (Build 191) V8.2.1 (Build 181)
    LC-1 WBO2

    _________________________________________________

  7. #7
    Senior Member pdasterly's Avatar
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    thanks, hope this works
    1998 Camaro Z28, forged ls2 sts turbo GtsT76, fmic
    1999 Firebird, forged ls1 procharger p1sc ls9 cam fmic
    1981 El Camino, 5.3 LSX carb, msd 6010
    2011 2SS

  8. #8
    Senior Member pdasterly's Avatar
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    what spreadsheet are you refering to?
    1998 Camaro Z28, forged ls2 sts turbo GtsT76, fmic
    1999 Firebird, forged ls1 procharger p1sc ls9 cam fmic
    1981 El Camino, 5.3 LSX carb, msd 6010
    2011 2SS

  9. #9
    Lifetime Member mr.prick's Avatar
    Join Date
    Nov 2006
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    512k RoadRunner Firmware 12.14R
    FlashScan V2 Bootblock V2.07.04 Firmware V2.07.22 EFILive V7.5.7 (Build 191) V8.2.1 (Build 181)
    LC-1 WBO2

    _________________________________________________

  10. #10

    Default

    There is a lot more to injector calibrating then changing the IFR table. There are at least a half a dozen parameters that need to be properly calibrated when changing injectors and significantly effect every aspect of tuning.

    What are you going to do about your short pulse adder table now that the stock injector has been bored out? What about the spray pattern that is drastically changed?

    You would have been better off with a factory larger injector with known values then an injector that does not have all the required data.

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