Thread: How Bout' a "Snow and Ice" tune
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Old Mon, November 9th, 2009, 10:01 PM
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Originally Posted by 907dave View Post
Maybe change the PWM of the TCC to soften its application, and have it unlock immediatly when you let off the pedal, for me any way to keep the R's down would be nice.
Piece of cake. The TCC apply rate can be changed to apply the clutch softly. BUT "burn time" is not good and the longer the apply takes to reach 60+% duty cycle the more friction material damage due to heat. I use the value of 60% because it is usually enough to create a lock and hold condition depending on EPC or "line pressure".

Unlocking the TCC on deceleration is also possible. Heck, lots of PCM strategies out there do that anyway. It's possible to change a few parameters and get even a PMT1 to do it.
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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.
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