I'm going to guess that he had a VRAA7S6/8 calibration stock and now is using the VRAA6S3 and the issue is on the 4-3 since there are lots of folks out there who complain about it (not just from PHP customers either). It's kind of the nature of the beast.
I used to love the instant reapplication of the torque converter clutch to get the power to the ground and it was fine when not towing because the truck never really had to do a forced downshift. After towing a bit with it I learned to hate it and quit tuning with VRAA6S3 in its native state; ultimately modifying all the towing tunes with the delay that the VRAA7Sx calibrations have. It's annoying for sure but not as brutal as the instant reapply.
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Tuning, PCM flashing, and burning chips for 7.3s since 2008. Repairing all aspects of 7.3L Powerstrokes for 25 years.
Eight 7.3L PSDs in the driveway including a 1994 Crown Vic and 1973 F100/2002 F350. Looking for the next victim.
Last edited by cleatus12r; Wed, April 5th, 2023 at 05:05 PM.
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Tue, March 28th, 2023, 09:07 PM
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