ISO Auto Tranny settings

BlackVert

15 Year Member
Oct 3, 2003
5,589
9
98
Bethesda, MD
Is there a place that defines all the automatic transmission settings?

For example, what do all the trans_TV_pressure_NN functions do?
Or the trans_converter_lock_XXX functions?
Or the trans_low_speed_line_psi function?
Or the trans_shift_schedule_NN functions?

I am a newbie with auto trannys, so I don't even know how they work, or even what TP or TV stands for. But apparently there are valves that control and focus the transmission pressure to different places depending on which gear the computer wants it to be in. And there is apparently also some mechanism the computer has to control whether the torque converter is locked or not.

there are lots of settings. if i could get a primer on this stuff worked, i might have a chance to figure out the other stuff...
 
there are lots of settings. if i could get a primer on this stuff worked, i might have a chance to figure out the other stuff...

Mike Glover's latest "Getting Started" PDF has a HUGE automatic transmission section - it is a great read.

You can find the latest PDF here: http://www.mustang-tech.org/wiki/images/2/21/Tweecer-Beta3-Getting-Started.pdf

If you'd like, I can try running my 4R70W off the stock U4P0 tune just to see how it runs so you can compare.

Wes