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Thread: Bosch 42lb injectors in 98 Vortec

  1. #1
    Tuner in Training
    Join Date
    Oct 2006
    Posts
    10

    Bosch 42lb injectors in 98 Vortec

    Hi All,
    Over the past week or so I've been searching everywhere for info on the corect settings when tuning my Whippled OLSD 2 bar 98 Suburban for the 0 280 155 558 Bosch/Ford Motorsport injectors.
    Does anyone here have any info they'd be willing to share?
    Has anyone been able toi successfully tune their vehicles using these injectors?
    Only real spec's I can find are that they're rated 42lb at 39.15 Psi.
    I can adjust my IFR to suit...that's no problem...but what about pulse width, battery offset etc?

    Thanks for any help

    Howard

  2. #2
    Senior Tuner
    Join Date
    Dec 2004
    Location
    Laurel, MD
    Posts
    1,020
    use 3bar (42.5psi) for rated flow. the rest works ok with stock calibrations. it's not perfect but it will be a great start.

  3. #3
    Tuner in Training
    Join Date
    Oct 2006
    Posts
    10
    That's the problem Marcin...I want it perfect
    I find it hard to believe that the stock settings should be used when going from the 19lb/hr poppets to something roughly 48-51lb/hr and 'normal' style?
    I've tried nearly everything to get this Burb running right and I'm at my wits end.
    This is pretty much the only area I haven't played with as yet.

    Thanks

    Howard