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Old Thu, October 29th, 2009, 10:25 PM
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F Your Yankee Blue Jeans
 
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Quote:
Originally Posted by 907dave View Post
Maybe make the idle when extremely cold (about -20 to -40)not sound so freakin loud. Kinda scary sounding.

Also I think all the shifts should be really smooth and early, lock the TC sooner than normal to keep RPM's low(below 1800).

This is one of the main reasons I want the Minotaur Software.
Been there, done that.

I use 5/40 in the winter and have written programs to address this concern relating to SOI vs. EOT and SOI delay when the engine is really cold.

I agree with the smooth shifts....always have agreed no matter if it's for icy roads or driving on pavement in the summer.

The problem with applying the torque converter clutch earlier is that even though there is less torque available in sub-1800 RPM ranges, the drive wheels get a direct power input from the engine. Conversely, when the TCC is not applied, the slippage in the fluid coupling greatly softens the "impact" of torque application to the rear wheels.
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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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