line pressure on 4l80e
#1
TECH Fanatic
Thread Starter
iTrader: (5)
Join Date: Dec 2009
Posts: 1,241
Likes: 0
Received 0 Likes
on
0 Posts
line pressure on 4l80e
Just wondering what line pressure should be on a 80e with a hd2? I put my stock stall in to make sure it was my converter that went bad, all seems to work good other then the 2-3 wot shift drags a little, when the shift starts the rpm don't hardly drop for a split sec then it locks in solid, IM running 80psi at idle then anywere in boost or wot it's at 150 psi. Is this normal? Or should it be higher?
#2
Moderator
iTrader: (1)
Jake I like to see about 30-50 psi more at wot when I dyno a trans or adjust one in the vehicle. You can adjust the force motor to achieve this. But be careful when doing this. A 1/4 turn on the screw is all I would do at one time. The 2-3 shift is a little lazy on these units from when the command takes place to when it actually happens. I have used the dh2 kit for many builds on these units and that is something that I noticed while dyno testing these units. So I would say that this is normal. HTH Vince
#5
TECH Fanatic
Thread Starter
iTrader: (5)
Join Date: Dec 2009
Posts: 1,241
Likes: 0
Received 0 Likes
on
0 Posts
okay so I drop the pan tonight and adjusted the force motor a quarter turn like said, now I have a 125 PSI idle and it pretty much stay there the whole time, wot flickers between 125 and 150. I guess this is all the pressure it can make, do I have a hydraulic leak somewhere? or is there something else that's a limiting my pressure?
#7
TECH Fanatic
Thread Starter
iTrader: (5)
Join Date: Dec 2009
Posts: 1,241
Likes: 0
Received 0 Likes
on
0 Posts
The builder is me lol. I've been running it for 6 months this way I just never noticed the laggy shift till I put the stock converter in it, the 9.5in converter was to loose to tell what it was really doing. Every thing works fine the only reason I intalled the gauge was cause of the converter problem.. I just wana make sure everything is right before installing a 1200 dollar converter.