C6 6l90 circle D stg3 tune and log, need help with lock up on 3-4 4-5 shift

[cjg454ss]

hi guys, I have a twin turbo c6, circle d trans and triple lock circle d converter. recently was referred to a website because circle D who provided the tune for my transmission a few years ago no longer does tuning. my car shifts as it should however, I recently took it to an airport race and the converter was set to lock at 85mph in third gear and then shift to 4th it would unlock and then lock up pulling the rpms down.

two items I need help on: 2006 C6 2.56 diff, 6l90, 3200 stall, 15psi twin turbo

1. how can I keep it locked thru the shifts 3-4, 4-5.

2. what would be the ideal mph to lock it at. car added 6 mph in the 1/2 mile just by locking it in the log attached.


thank you!

[cjg454ss]

hi guys, I have a twin turbo c6, circle d trans and triple lock circle d converter. recently was referred to a website because circle D who provided the tune for my transmission a few years ago no longer does tuning. my car shifts as it should however, I recently took it to an airport race and the converter was set to lock at 85mph in third gear and then shift to 4th it would unlock and then lock up pulling the rpms down.

two items I need help on: 2006 C6 2.56 diff, 6l90, 3200 stall, 15psi twin turbo

1. how can I keep it locked thru the shifts 3-4, 4-5.

2. what would be the ideal mph to lock it at. car added 6 mph in the 1/2 mile just by locking it in the log attached.


thank you!

Anyone?

[sevinn]

You aren't logging tcc pressure or current gear but with your 4th apply set to 125 in

Ideal lock would need to be played with. Easiest to find this on a dyno or at the track.

If you want to keep it locked through the shift, just make sure that the 4th apply mph is less than the mph you will begin 4th gear in.

[cjg454ss]

thank you for the help. I see my lock up mph was higher than the shift mph commanded. just so I understand. if I want it to lockup in 3rd gear at 85mph then it shifts to 4th at 115.. I need to have the lock up at 114mph or lower at wot. is that correct.?

[sevinn]

Correct. Honestly no harm in setting it to 85 as well if that's what you want.