Friday, July 1, 2016

94 Mustang GT: Moates Quarterhorse and Binary Editor - perload

The last post I had about the QH and BE was the changes that were in place at the time.  Since then I have dialed in the MAF curve using an Innovate LC2 wideband.  I also made updates to DASPOT using the reference to tuning it from the info.efidynotuning.com page.  The last piece to the puzzle was making the changes for the way Load is calculated.  The calibration now has perload=0, which is load /loadx.  This method takes into account the Peak Load at Sea Level vs RPM function.  The original values in this function are for a stock engine.  The load values at RPM need to be updated with those logged during a WOT sweep of the RPM range.  The new values reflect the Volumetric Efficiency of an upgraded engine.  I've gone through this a few times and plugged in the Load values.  Now looking at perload during the WOT sweep, it hovers just around 100%, which is exactly where it should be!

This enables fueling to be dialed in depending on Load.  Spark was scaled in a similar fashion - going to 200 load instead of the 100 load typical of a Naturally Aspirated engine.  The RPM tables also got scaled to 6000 instead of 4000.

The ability of the calibration to scale above 100% means that the addition of a power adder will be accounted for!  While a NA motor can only possibly reach 100% (maybe a little higher if its REALLY efficient), a forced induction or nitrous motor can reach well above 100%.

I won't get into the details of exactly what changes were made - its all available via info.efidynotuning.com write ups!  I've spent a lot of time on that site!!!

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