Shift adaption time
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TECH Enthusiast
Joined: Mar 2004
Posts: 647
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From: Australia
Shift adaption time I need a faster gear change for the 1-2 shift. Currently its scanning a 0.3s timing pull. I have the WOT shift at 6250RPM and 38MPH and it completes the shift at 6500-6600RPM. If I raise the RPM any higher it bounces the limiter. How can I shift faster so that I can raise the RPM to 6400RPM?
I have a rebuilt shift-kitted tranny. I have 0.16-0.22 shift times in the shift time vs torqur tables. No matter what I changes there I cant get a faster shift.
Is there a tranny mod, TQ reduction table or force pressure table I can mod. top achieve a shift duration fo 0.15 seconds for the 1-2 WOT shift? Or am I being too wishful?
I have a rebuilt shift-kitted tranny. I have 0.16-0.22 shift times in the shift time vs torqur tables. No matter what I changes there I cant get a faster shift.
Is there a tranny mod, TQ reduction table or force pressure table I can mod. top achieve a shift duration fo 0.15 seconds for the 1-2 WOT shift? Or am I being too wishful?
Do you have a shift kit in it? A TransGo shift kit, for example, gives you the ability to adjust the firmness of the 1-2 shift by adding or subtracting washers from the 1-2 acummulator housing. The difference between a shiftkit and programming is that the kit will move more fluid into the servo at a lower line pressure than the stock calibration will. It also greatly improves the sloppy stock 2-3 shift.
When you set up the firmness for the 1-2, start small. It's better not to go overboard with the 1-2 shift or you will end up with jolting bangs at low throttle too. The 4L60-E dos not have internal parts strong enough to handle excessively fast firm shifts, so firm it up to what you need and no more.
When you set up the firmness for the 1-2, start small. It's better not to go overboard with the 1-2 shift or you will end up with jolting bangs at low throttle too. The 4L60-E dos not have internal parts strong enough to handle excessively fast firm shifts, so firm it up to what you need and no more.
