Just switched from M6 to A4
06-28-2005, 11:01 PM
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Just switched from M6 to A4 I just switched over to an A4 with a TCI SSF 3500 stall, man this thing is awesome out of the hole, but it kinda bogs a little could this be torque managment? Also does eliminating TM all togeather decrease the life of the trans. Sorry if these are Dumb questions all I have have ever had is M6 cars, all this is new to me.
06-29-2005, 04:43 PM
#3
It sounds like it is possibly the torque management. Deleting the TM altogether will give the trans more input power and could potentially decrease the life of the trans. However, just driving can decrease the life of the trans. After all, it is a 4l60E.
06-29-2005, 05:15 PM
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You may be noticing the change from extreme torque
multiplication (2.5:1) to unity as you run up the RPM,
especially off the line. I feel this a little on my 3000/2.2
and that was one (minor) reason I ordered a higher stall
but lower STR converter (from Fuddle). I wanted the
torque multiplication to be less from a stop, and hang
in there longer. If you can find the converter dyno
curves Yank used to have on their site, you can see how
some high-STR converters give a huge boost at low RPM,
then output torque will dip and come back up (especially if
the stall speed is well below where the engine's torque
peak lies, as might be the case with a cam & headers
car) while a lower-STR one can produce a torque profile
that's basically constant across a broad RPM range (my
preference).
Then again it could just be some other tuning thing,
like you hit some knock retard from being too lean or
whatever.
multiplication (2.5:1) to unity as you run up the RPM,
especially off the line. I feel this a little on my 3000/2.2
and that was one (minor) reason I ordered a higher stall
but lower STR converter (from Fuddle). I wanted the
torque multiplication to be less from a stop, and hang
in there longer. If you can find the converter dyno
curves Yank used to have on their site, you can see how
some high-STR converters give a huge boost at low RPM,
then output torque will dip and come back up (especially if
the stall speed is well below where the engine's torque
peak lies, as might be the case with a cam & headers
car) while a lower-STR one can produce a torque profile
that's basically constant across a broad RPM range (my
preference).
Then again it could just be some other tuning thing,
like you hit some knock retard from being too lean or
whatever.
06-29-2005, 11:36 PM
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Thanks for all the input, I am getting it tuned this weekend so hopefully I will get it worked out.
As for which I like better the M6 or the A4......I can't really say just yet because its not tuned yet so I am not getting the most out of it, I have had a total of 4 fourth gen cars and they have all been 6 speed cars except for my wifes car, so I am really enjoying the Auto. Plus I think it will be better for thte Spray.
As for which I like better the M6 or the A4......I can't really say just yet because its not tuned yet so I am not getting the most out of it, I have had a total of 4 fourth gen cars and they have all been 6 speed cars except for my wifes car, so I am really enjoying the Auto. Plus I think it will be better for thte Spray.