Trans help needed
Trans help needed
I have a 95Z with A4 trans and a 3200 converter. I have been doing track time and came across something interesting that maybe someone can help with. Here's the scoop:
The trans tables have been tweaked so that it doesn't go into the "limp home" mode because of the 3200 converter. That fixed the problem BUT I noticed that the 1-2 and 2-3 shifts didn't happen(late) when they were programmed to(5600) when I changed from stock stall to 3200 converter. AND theyl got worse when I switched out the 2.73s for a set of 4.10s
Here's the info, maybe I can get some insight?
These are the table settings
Normal Mode Up/Dn shift points
48,92,150
Performance Mode Up/Dn shift points
48,92,150
Kickdown Up/Dn shift points
0,60,150
Hot Kickdown Mode Up/Dn Shift points
1,60,150
Kickdown Normal Mode Shift RPM Thresholds
5600,5600,5600
Kickdown Hot Normal Mode Shift RPM Thresholds
5344,5440,5344
Kickdown Cold Normal Mode Shift RPM Thresholds
7892,7892,8192
Shift time Normal Mode Low Alt
.75,6.38,6.38
Shift time Normal Mode High Alt
.78,6.38,6.38
Shift time Performance Mode Low Alt
6.38,6.38,6.38
Shift time Performance Mode High Alt
6.38,6.38,6.38
These are some logs from the track
Shift rpms w/2.73s
1-2=5900
2-3=5750
1-2=5975
2-3=5675
Shift rpms w/4.10s
1-2=6325
2-3=5525
1-2=6325
2-3=5950
1-2=6275
2-3=5950
The trans tables have been tweaked so that it doesn't go into the "limp home" mode because of the 3200 converter. That fixed the problem BUT I noticed that the 1-2 and 2-3 shifts didn't happen(late) when they were programmed to(5600) when I changed from stock stall to 3200 converter. AND theyl got worse when I switched out the 2.73s for a set of 4.10s
Here's the info, maybe I can get some insight?
These are the table settings
Normal Mode Up/Dn shift points
48,92,150
Performance Mode Up/Dn shift points
48,92,150
Kickdown Up/Dn shift points
0,60,150
Hot Kickdown Mode Up/Dn Shift points
1,60,150
Kickdown Normal Mode Shift RPM Thresholds
5600,5600,5600
Kickdown Hot Normal Mode Shift RPM Thresholds
5344,5440,5344
Kickdown Cold Normal Mode Shift RPM Thresholds
7892,7892,8192
Shift time Normal Mode Low Alt
.75,6.38,6.38
Shift time Normal Mode High Alt
.78,6.38,6.38
Shift time Performance Mode Low Alt
6.38,6.38,6.38
Shift time Performance Mode High Alt
6.38,6.38,6.38
These are some logs from the track
Shift rpms w/2.73s
1-2=5900
2-3=5750
1-2=5975
2-3=5675
Shift rpms w/4.10s
1-2=6325
2-3=5525
1-2=6325
2-3=5950
1-2=6275
2-3=5950
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dbusch22
LT1 Based Engine Tech
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Jan 5, 2015 07:14 PM



