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Thread: Which IFR calibration to use - Corvette LS6 or Bosch 28.8 ' 58 PSI

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    Default Which IFR calibration to use - Corvette LS6 or Bosch 28.8 ' 58 PSI

    Hi,

    I've already been using the Calc VET method for a few logs but wanted to check the IFR (B4001) before continuing. I'm using a Holden/GTO 04 LS1 in an RX7.

    The injectors I'm using
    Bosch: 00 280 155 931
    28.55 lbs/hr @ 43.5 PSI

    They appear to be the same as the Z06 LS6 injectors so I copied over the IFR table from a standard Z06 tune (02 LS6). However when I did some more reading and found the Bosch injector ratings they are rated 28.55 lbs/hr at 43.5 PSI and not the 58 PSI FPR pressure I'm using (un-reference Corvette FPR). So when I used the injector spread sheet on this site the figures for B4001 came out larger obviously (+13%).

    So I'm now unsure if I should use the Corvette IFR values or the corrected figures assuming the injectors are rated @ 43.5 PSI. I've attached the log of my car driving home after 3 corrections using Calc VET. Not the best but it was hard to any sort of open run.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	IFR_Bosch_Injectors.png 
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ID:	14934   Click image for larger version. 

Name:	IFR_LS6_Injectors.png 
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Size:	89.1 KB 
ID:	14935  
    Attached Files Attached Files

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