4l80e trans tuning?
4l80e trans tuning? I have an LS1 and a 4l80e in my 67 Nova. Frost did the initial conversion tune on the project. I would like to know if someone could help with my trans tuning.
Part throttle 1-2 shift is firm, 2-3 is softer than I would like and 3-4 is ok. WOT 1-2 is soft and slips into 2nd as though torque management is applied. 2-3 is firm and nice. I have read some about shift pressures and I believe the shift pressure table has the stock values in it at 90. Can someone help me with getting it to shift harder?
Thanks in advance.
Jay
Part throttle 1-2 shift is firm, 2-3 is softer than I would like and 3-4 is ok. WOT 1-2 is soft and slips into 2nd as though torque management is applied. 2-3 is firm and nice. I have read some about shift pressures and I believe the shift pressure table has the stock values in it at 90. Can someone help me with getting it to shift harder?
Thanks in advance.
Jay
Joined: Aug 2007
Posts: 24,241
Likes: 89
From: Turnin' Wrenches Infractions: 005
You have hptuners I assume? I can give you a good trans tune for you to look at.....and coolaid made a nice guide of understanding what all the tables do. In short though I would up max pressure to 96, eliminate all torque reduction, then change the upshift modifier tables in the areas you want to get the feel you want, working up to > maxing out at wot torque range(looking at a tune you will understand)
https://ls1tech.com/forums/automatic...tm-w-pics.html
https://ls1tech.com/forums/automatic...tm-w-pics.html
QUOTE=01ssreda4;19263304]You have hptuners I assume? I can give you a good trans tune for you to look at.....and coolaid made a nice guide of understanding what all the tables do. In short though I would up max pressure to 96, eliminate all torque reduction, then change the upshift modifier tables in the areas you want to get the feel you want, working up to > maxing out at wot torque range(looking at a tune you will understand)
https://ls1tech.com/forums/automatic...tm-w-pics.html[/QUOTE]
Correction , I talked to the trans builder and he did not install a shift kit. Once talking with him I remember we talked about not installing the shift kit to see how the trans would be without it. Sure if you want to post a tune or send it to my email, that would be great! I am not sure if the tunes will be the same between the 60 and 80e, but I do have an 80e. I will take a look at the link.
Thanks so much.
Jay
https://ls1tech.com/forums/automatic...tm-w-pics.html[/QUOTE]
Correction , I talked to the trans builder and he did not install a shift kit. Once talking with him I remember we talked about not installing the shift kit to see how the trans would be without it. Sure if you want to post a tune or send it to my email, that would be great! I am not sure if the tunes will be the same between the 60 and 80e, but I do have an 80e. I will take a look at the link.
Thanks so much.
Jay
Joined: Aug 2007
Posts: 24,241
Likes: 89
From: Turnin' Wrenches Infractions: 005
They are very similar. Buddy runs my 60 tune on his 2500HD with the 80 with just some minor tweeks to the upshift tables. Pm me your email and I can shoot it over this evening when im by my laptop.
