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How much line pressure?

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Old Sep 21, 2003 | 07:41 PM
  #1  
whitt1's Avatar
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From: memphis tn
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.
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Old Sep 22, 2003 | 01:04 PM
  #2  
Jorday's Avatar
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From: Fenton, MI
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.
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Old Sep 22, 2003 | 01:58 PM
  #3  
JoSeY's Avatar
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From: Your Reality Check Bounced...
Default Re: How much line pressure?

i run 120psi
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Old Sep 23, 2003 | 08:23 AM
  #4  
Kevin Winstead's Avatar
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From: Falkner, MS
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
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Old Sep 23, 2003 | 02:00 PM
  #5  
A BAD T/A's Avatar
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From: Doniphan, MO
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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