I just rebuilt my 4R100 and installed the tugger kit and a trucool max cooler, but I didn't replace the PWM valve with the non-PWM when I had the pump apart. Unfortunately, I am now wishing that I had, but I'm not about to pull it back out to do just that! So, since I am planning to get a DP-Tuner in the near future, I was wondering if the DP tunes would help to mitigate this slow lockup from the PWM? I assume that the pulse width is controlled by the PCM and thus can be manipulated by the tune?

 

I have had the TransGo lock up valve for almost 4 yrs and really like it. Basicly, same other mods as you. The lock up valve does make the TC feel like another firm shift and I like that. I am trying to remember how it was before with the DP tunes and the PWM valve. I do recall the tunes did improve the lock up shift quality.

 

The torque converter lockup duty cycle can be bumped up in the tuning to lock the torque converter faster.

 

Jody can do some amazing things in regards to transmission shift points, TC lockups as well as overall performance.

 

Thanks! I wonder if I would need a custom tune for this, or just an over the counter tune from DP?

 

Talk to Jody and he will take care of you. Great guy.