A4 Torque Management Question
03-29-2010, 05:37 PM
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A4 Torque Management Question I have a 97 C5 Corvette with an A4 transmission. My transmission is stock except for im installing a Transgo HD-2 4L60E shift kit in it this weekend. A buddy of mine has HPtuners and I was thinking of changing the torque management settings. So im trying to gather as much info as to what tables need to be changed and what would be some good starting values to enter on those tables with a shift kit. Being it’s a stock trans I know I don’t want to make the values zero because id like my trans to last a few more years. This HPtuners stuff is way over my head so as much detailed help as I can get would be greatly appreciated.
03-30-2010, 11:18 AM
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03-31-2010, 04:47 PM
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Having played with this a fair bit, I ended up simply
changing the spark retard vs torque reduction table
and torque reduction vs torque, to get a more modest
pullout (no less than 10 degrees advance, not -10).
Some schemes have undesired consequences (such
as, pinning the max retard (forget the name) affects
other retard events like KR). Getting too fancy with
the torque reduction profile also gave me some weird
"hangs" when I was trying to make a constant-torque
profile; seems like the "reduced torque"
(index torque*(1-reduction%/100))
needs to still be monotonically increasing. But this is
only my working theory.
Once you get to the electric throttle motors, there's
a whole lot more *****, traction control stuff that
meddles with shifts etc.
changing the spark retard vs torque reduction table
and torque reduction vs torque, to get a more modest
pullout (no less than 10 degrees advance, not -10).
Some schemes have undesired consequences (such
as, pinning the max retard (forget the name) affects
other retard events like KR). Getting too fancy with
the torque reduction profile also gave me some weird
"hangs" when I was trying to make a constant-torque
profile; seems like the "reduced torque"
(index torque*(1-reduction%/100))
needs to still be monotonically increasing. But this is
only my working theory.
Once you get to the electric throttle motors, there's
a whole lot more *****, traction control stuff that
meddles with shifts etc.
