Originally Posted by
jc222r
So far, I used a bin file from the library that matched my ecu and code : BJYK 95 C-K Truck 5.7TBI 4l60e with 3.08 or 3.42 gears , And used bin : 2002 Chevrolet Express Van Automatic L31 5.7L 4L60e 2wd (12212156) Lean Cruise , with Universal Patcher to get at the performance tables and pressures, assuming they're tow/haul tables.
I then copy/pasted table by table for all filters marked performance in the van bin.
*** I averaged two adjacent cells in the van's base pressure performance tables to collapse the 33 data points to fit on the 17 line tables of the c-k bin at tables : Pressure Offset vs. TPS vs. Gear , And Load Based Pressure Offset vs. TPS vs. Gear***<<< Is this correct??
I left the upshift rpm table as stock, figuring there are torque curve differences between L05 and L31 engines.
I also bumped max line pressure to 92 from 90, for no reason whatsoever.
After a test drive with the trailer unhooked, I can say that the pattern has shifted towards holding whatever gear it's in longer. Shifts are extremely positive, I'm wondering if I over did the base pressure tables with having the shift kit on there already. Zero to Part Throttle at low speed feels like an on/off switch, can feel the gear reengaging everytime, I thought tow/haul would hold the gear on decel also? Going to hook a pressure gauge on it and maybe tote the trailer a bit in a few days.
If anybody wants to look at this, I added the files used. Thanks for any input.
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