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How much line pressure?

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Old 09-21-2003, 07:41 PM
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Default How much line pressure?

I just installed a TCI stand alone computer on my supercharged Tahoe.With lots of adjustability comes lots of options and lots of questions.How much line pressure can I safely run on a 4L60E,how quick should I make the shifts and where should I lockup the converter?The computer has a performance and economy switch so I don't have to live with my perfomance settings riding around town.
Old 09-22-2003, 01:04 PM
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Default Re: How much line pressure?

I don't know where as far as the most line pressure you can safely run. I would just be careful increasing the line pressure too awful much.
Old 09-22-2003, 01:58 PM
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Default Re: How much line pressure?

i run 120psi
Old 09-23-2003, 08:23 AM
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Default Re: How much line pressure?

As you're driving down the highway, you shouldn't need much over 100 psi, since there isn't much of a load on the clutches at that point. I typically like to see the line pressure rise very quickly on blown applications, so you'll want a fairly steep slope on the line pressure curve. You should "zero out" the curve at WOT. That is max. pressure on the T-Com unit.
Kevin
Old 09-23-2003, 02:00 PM
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Default Re: How much line pressure?

Actual GM specs:
In Drive, Park or Neutral 50-189psi.
Reverse: 67-324psi
Experts consider any setting over 200 @WOT to be avoided.




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