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What makes ya happy for TC Lockup params?

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Old Apr 11, 2002 | 08:34 PM
  #1  
Craig Moates's Avatar
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From: Baton Rouge, LA, USA
Car: 87 T/A
Engine: 441 SBC 12.5:1 0.680" Lift
Transmission: T-56
Axle/Gears: 4.10 TruTrac Moser 9"
What makes ya happy for TC Lockup params?

What makes ya happy for TC Lockup params?

Just curious what kind of values folks have found to be pleasing in terms of different driving styles. Never hear mch on the topic, thought it would be a good one to discuss...

-Craig
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Old Apr 11, 2002 | 11:22 PM
  #2  
Grumpy's Avatar
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From: In reality
Car: An Ol Buick
Engine: Vsick
Transmission: Janis Tranny Yank Converter
Re: What makes ya happy for TC Lockup params?

Originally posted by Craig Moates
What makes ya happy for TC Lockup params?

Just curious what kind of values folks have found to be pleasing in terms of different driving styles. Never hear mch on the topic, thought it would be a good one to discuss...

-Craig
I set most of the time delays to 0 or just lower delays.
Set the 3rd gear lock up to 80 MPH, and the 4th gear lock up to 47 MPH. So I don't use the 3rd gear lock up. The play with the % TPS to unlock values to see what feels right.
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Old Apr 11, 2002 | 11:23 PM
  #3  
Synapsis's Avatar
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From: Tucson - MdFormula350 = Post uberWhore
Car: Sexy
Engine: Stock
Transmission: Slipping
Mine is currently set to the stock 38 mph cruising speed. But I think since my rear tires are a little taller than stock, it's kicking in at a lower speed which is lugging my engine. I'm going to up mine to 43 mph this weekend so I'll be a little higher in rpm when it comes in.

Grumpy - Does your trans fluid heat up more when you drive around town with the 3rd gear lockup shut off? I'd love to get rid of the 3rd lockup, personally.
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Old Apr 12, 2002 | 02:10 AM
  #4  
JPrevost's Avatar
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Joined: Oct 1999
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Car: 91 Red Sled
Axle/Gears: 10bolt Richmond 3.73 Torsen
I have all the stock f-body values and tables. I tried messing around with the tcc constant lock/unlock mph and it didn't matter. The 3.73 gears made a huge difference in how the car drives but overall I like it when the tcc locks up in 3rd gear. I can't give you an exact mph because right now my vss still thinks I've got 2.73 gears . It's called a college student budget! I just had to multiply my lockup speed by 4/3 and it works until I can pay for the new speedo gears.
I've attached a graph of the caprice ANLU eprom tcc unlock tables vs what I'm using, tell me if you notice anything strange . BTW, my low and high gear tables are identical.
Attached Thumbnails What makes ya happy for TC Lockup params?-image11.gif  
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Old Apr 12, 2002 | 09:31 AM
  #5  
Synapsis's Avatar
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From: Tucson - MdFormula350 = Post uberWhore
Car: Sexy
Engine: Stock
Transmission: Slipping
Has anyone successfully used the constant in the ECM for VSS to adjust for gears/taller tires?
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