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  1. 06-03-2017 #1
    90Vette
    90Vette is offline
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    Question $8D VE cells maxed at 100

    While tuning my '90 Corvette's TPI 383, I've run into a bit of a wall. At 2800-4000 RPMs and 70+ kPa, my BLMs are indicating that I should have a VE of over 100% (which I've read some people saying is very unlikely for a N/A engine, and others have said that tuned runners as are found on TPI can give efficiencies over 100%).

    I didn't think this was a big problem, but I just noticed that when I commit the changes to the VE table, if I open the table back up I can see that the values over 100 are all rounded down to 99.61, giving me an irreparable lean condition in those cells.

    What's my recourse here? Is there a modified XDF that allows larger VEs? Should I be adjusting something else in the BIN to compensate? Or, do BLMs over 100 indicate some other underlying issue?

    EDIT:
    Looks like decreasing the injector flow rate will work?
    Last edited by 90Vette; 06-03-2017 at 06:24 AM.
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