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TCI or PCS tranny controller

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Old Mar 25, 2009 | 08:09 PM
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Default TCI or PCS tranny controller tcc pressure control

Just wanted to get some input on what anyone is running their tcc pressure control at for the track with a 4l80e. Thanks

Last edited by T-Bones Goat; Mar 25, 2009 at 08:23 PM.
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Old Mar 25, 2009 | 10:25 PM
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They are the same unit. TCI buys from PCS.
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Old Mar 26, 2009 | 06:42 AM
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Originally Posted by T-Bones Goat
Just wanted to get some input on what anyone is running their tcc pressure control at for the track with a 4l80e. Thanks
I know. That is why I included both names. For those who didn't know and may have input. Did you read the OP?
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Old Mar 26, 2009 | 07:06 AM
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doh sorry I misread
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Old Mar 28, 2009 | 05:21 PM
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Originally Posted by T-Bones Goat
Just wanted to get some input on what anyone is running their tcc pressure control at for the track with a 4l80e. Thanks
Stock or modified 4L80e? 4L85e? Power, gears, tires? What year and from what original application? 4L80E TCC design changed over the years, custom converters alter this, custom valve bodies alter this. Etc etc. Such are the variables that make a difference.

Without any knowledge of the above variables I can say that you should use the datalogging feature with a laptop or their D200 / TCI logger and monitor TCC slip which largely provides the answer to your question in the logs itself.
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Old Mar 29, 2009 | 07:30 AM
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RPM Stage V 4l80e 5 disk Precision converter 950rwhp 3.55 28/10.5/15

I spoke to Russ at PCS and he gave some tips for the lockup at the track. One thing he suggested is to make the lockup % per second 1000 or higher and the starting percent 100. This should make it lock up as fast as possible.
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Old Mar 30, 2009 | 10:01 AM
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Originally Posted by T-Bones Goat
RPM Stage V 4l80e 5 disk Precision converter 950rwhp 3.55 28/10.5/15

I spoke to Russ at PCS and he gave some tips for the lockup at the track. One thing he suggested is to make the lockup % per second 1000 or higher and the starting percent 100. This should make it lock up as fast as possible.
Given your application I would say that is wise. You still want to look at your logs for slippage and then you get into the details of which gears you are running through, when to lock it and if you hold lockup during shift events.
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