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Thread: Upgrading Pontiac G5 Injectors to Siemens 60#

  1. #1
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    Upgrading Pontiac G5 Injectors to Siemens 60#

    Nothing's ever easy - thought changing the flow rate tables would be as simple as copying the data I used for the 60s in my IRL, only to find out that the IRL flow rate was based on the Vacuum kPA and the G5 is using fuel pressure delta...I'm at a loss for how to convert the data over properly, so these things are working properly.

    Any guidance would be appreciated.
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  2. #2
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    Just tried this today in my cobalt, you'll likely find that the table only accepts values up to a certain limit and will need to be scaled. And from what I've read if you scale the flow rate tables you have a whole bunch more tables where you'll have to do the same.

  3. #3
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    so did you figure that out
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  4. #4
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    I cheated, had stage 2 file that worked around it but one of the fellas here that was helping me didn't exactly like the values. None the less, it runs and idles like stock.

    A 2007 2.4l LE5, if you've got similar i'd be happy to email you the values as a reference point.
    Last edited by MarkZ; 04-30-2011 at 09:35 PM. Reason: sp

  5. #5
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    yes please what injectors did you use [email protected]
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