converter will not lock under wot

[rcr1978]

Speaking of that table what kind of results did you get with it? Softer or firmer lock up when you actually had a lockup ?

[camcojb]

Speaking of that table what kind of results did you get with it? Softer or firmer lock up when you actually had a lockup ?

I could not really feel any differences in lockup when I changed that table. It seems like it would affect that but I suspect it's only one of many tables used that affect lockup speed, like many of the other tables in the Allison tuning.

If you're trying to soften lockup with an aftermarket converter I had some success with D5071 and lowering the max numbers in the light throttle areas. But I think WHEN it locks makes a bigger difference, and the lower the gear, sooner you have it lock at part throttle the harsher the lockup feels. Also, on mine, removing torque reduction affected the lockup, even at super light throttle areas where you wouldn't be getting any TR; definitely softened the lockup of my 1058 to have TR back in at 40-50%.

Jody

[jpowel29]

I have tried raising & lowering the min/max apply percentages. As previously stated these will really firm up the lock-up at part throttle. I have left the max apply percentages around 95%. I am not sure why this value would need to be at 65%. I am at the point where I am ready to swap converters (again). I will keep my looser ones in hopes that the secret tables get discovered in the near future.

[DuramaxPowered]

I have left the max apply percentages around 95%. I am not sure why this value would need to be at 65%.

to keep from burning up the solenoids. That being said, I'm going to make a controller that will do full lock-up without pulse width modulation......."F" solenoids are $16-18, I'll take my chance at smoking one by running 100% duty cycle for 11 seconds

[jpowel29]

Anyone care to share any wiring diagrams and schematics for the 6spd TCM and wiring harness. I am at the point of sitting out the next few races until I can get a lock-up switch or controller figured out.

[DURAtotheMAX]

The fixed table has been released, John I sent you a tune to try.

Jody, see table D5072 for updates.

Nick

no that table doesnt fix it...I tried a long time ago. :(

[jpowel29]

I should have the switch/wiring diagrams this week to attempt manual lock-up. I will post up my results. If the switch works, we are going to start putting together a simple microcontroller to help pulse/ramp up the solenoid (similar to a progressive nitrous controller).

[DURAtotheMAX]

here is one I drew up a while ago...



Use this at your own risk. You could very well blow stuff up by doing this. I wont be responsible for anything broken that results.

ben

[jpowel29]

Thanks for the diagram. It is essentially what I will be using.

Did you try it at WOT? Did it lock the converter w/o limping the trans? My thoughts were that if it did work at WOT then I would get my buddy to make a micro controller to help with PWM. I may be SOL but I wanted to try something before sinking more money in a tight converter that will make my engine combo miserable to drive.

[jpowel29]

I just ordered the Lock-Up controller from Fleece