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Thread: Bosch 24lb EV6 injector offset values

  1. #1

    Bosch 24lb EV6 injector offset values

    Worked these up by interpolating the offset data here: http://eectuning.org/forums/viewtopic.php?p=69614

    Will test and report back...

    0.0 0.00
    1.6 0.00
    3.2 0.00
    4.8 0.00
    6.4 2105.74
    8.0 1434.35
    9.6 1098.65
    11.2 854.50
    12.8 671.40
    14.4 549.32
    16.0 366.22
    17.6 213.63
    19.2 61.04
    20.8 0.00
    22.4 0.00
    24.0 0.00
    25.6 0.00

  2. #2
    EFI GearHead ! EagleMark's Avatar
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    Isn't the offset ususllay closer to 0 at 14.4 volts? I'll bet this is one of those injectors that has a nasty curve down low and they plot to avoid it?

    Aftermarket offsets are always good to know!

    1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
    1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
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  3. #3
    Fuel Injected! JeepsAndGuns's Avatar
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    Whats the bosch part number on these injectors. Not all EV6's are created equil, as there are lots that can flow that depending on the fuel pressure.
    79 Jeep Cherokee, AMC 401, T-18 manual trans, hydroboost, 16197427 MPFI system---the toy

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  4. #4
    I'll check...

  5. #5
    Quote Originally Posted by JeepsAndGuns View Post
    Whats the bosch part number on these injectors. Not all EV6's are created equil, as there are lots that can flow that depending on the fuel pressure.
    This might be the number:

    0280155715

  6. #6
    EFI GearHead ! EagleMark's Avatar
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    This site has lots of Bosch injectors and the data sheets.
    http://boschdealer.com/index.php?mai...pshr6bpbp050f0

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    1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
    1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
    -= =-

  7. #7
    Excellent! So the interpolated values I posted should be accurate...although I agree with you that the low-voltage values shouldn't be zero. When would one realistically encounter such a situation (voltage < 6V?)

  8. #8
    EFI GearHead ! EagleMark's Avatar
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    Realistically an EFI system should not run at 6 volts at all?

    Usually 14.4 is the goal 0.00 and rasies lower voltage, lowers at higher voltage. But some injectors have a nasty tweak and not linear so they shoot for the linear section.

    1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
    1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
    -= =-

  9. #9
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    that's how a lot of the GM injector tables are setup.... i don't see it being an issue, since 10 volts and lower and pretty much nothing will be working correctly.

    the ECM itself will be fine because it regulates voltage down to 5 volts for the processor and ICs, but everything it's commanding isn't going to be acting as expected.
    1995 Chevrolet Monte Carlo LS 3100 + 4T60E


  10. #10
    Fuel Injected! JeepsAndGuns's Avatar
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    Quote Originally Posted by brianko View Post
    This might be the number:

    0280155715
    Ford taurus/mercury sable 3L DOHC V6 injectors.

    I would like to find the offsets of the LS1 0280155931 injectors. Thats what I'm using in my 401.
    79 Jeep Cherokee, AMC 401, T-18 manual trans, hydroboost, 16197427 MPFI system---the toy

    93 Jeep YJ Wrangler, 4.0L, 5 speed, 8.8 rear, homebrew hub conversion and big brakes, hydroboost, 2.5in OME lift, 31x10.50's---the daily driver

    99 Jeep WJ Grand Cherokee limited, 4.0L, auto, 2wd, leather and power everything, 99% stock---the long distance highway ride.

  11. #11
    Carb and Points!
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    Are the above values posted in ms?

    FIC says they are :


    8 V 1.42
    10V 1.00
    11 .86
    12 .75
    13 .67
    14 .58
    15 .50

    02808155715
    I believe Bosch 24 lbs @ 43 fp

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