Thread: PCM Code
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  #15  
Old Mon, June 7th, 2010, 10:14 AM
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OK, I get it now.

You're not going to hurt a thing. It may be a bit awkward feeling, but it is ONLY the torque converter clutch applying at a fater rate than stock.

The longer it takes the shift (or torque converter clutch to apply), the more "burn time" there is, and the more damage it does. The factory designed these SD trucks to shift "transparently" so that you can't feel the shifts. Unfortunately, it also takes a toll on the friction elements inside the transmission by causing a lot of heat during the shift.

By shortening the time it takes the shift to occur, the heat produced by the friction elements is kept to a minimum. The only drawback is the firmness of the shift. It is fixable.....but at the expense of drawn-out shifts; which for a higher-hp shifts can burn up frictions in very little time.
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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.