How Do I Make the Shift Occur Faster (4L65E)?
02-28-2005, 01:04 AM
#1
How Do I Make the Shift Occur Faster (4L65E)? I was doing some logs today with HP tuner and felt and saw that the shift speed feels slow. It shifts at 5800 rpm like I programmed but it seems like the shift still takes a long time. Can I safely make the shift itself occur more quickly.
I believe I can adjust the desired shift time vs torque table down from the .200 settings it currently has. Can I do this without hastening the end of the transmission? I was thinking of going to a .150 setting and seeing how it feels.
Thanks for any help, tips!
I believe I can adjust the desired shift time vs torque table down from the .200 settings it currently has. Can I do this without hastening the end of the transmission? I was thinking of going to a .150 setting and seeing how it feels.
Thanks for any help, tips!
02-28-2005, 06:55 PM
#3
Moderator
iTrader: (11)
Join Date: Mar 2002
Location: East Central Florida
Posts: 12,605
Likes: 0
Received 6 Likes
on
6 Posts
Transmission>A4 Shift Properties>Desired Shift Time
Reduce this to something like 0.150 or 0.100 and you
will see the shift time decrease. Some tools and some
people set it to zero, but then you give the PCM an
impossible goal and make it use full pressure. So if you
are happy with the action at (say) 0.200 there's not
a need to beat ir down. You can also play with the shift
pressures if the adaptation time doesn't entirely satisfy.
Also part of what you feel that aggravates you, may
be the torque management. Read up on that.
Reduce this to something like 0.150 or 0.100 and you
will see the shift time decrease. Some tools and some
people set it to zero, but then you give the PCM an
impossible goal and make it use full pressure. So if you
are happy with the action at (say) 0.200 there's not
a need to beat ir down. You can also play with the shift
pressures if the adaptation time doesn't entirely satisfy.
Also part of what you feel that aggravates you, may
be the torque management. Read up on that.
03-01-2005, 12:34 AM
#5
Originally Posted by jimmyblue
Transmission>A4 Shift Properties>Desired Shift Time
Reduce this to something like 0.150 or 0.100 and you
will see the shift time decrease. Some tools and some
people set it to zero, but then you give the PCM an
impossible goal and make it use full pressure. So if you
are happy with the action at (say) 0.200 there's not
a need to beat ir down. You can also play with the shift
pressures if the adaptation time doesn't entirely satisfy.
Also part of what you feel that aggravates you, may
be the torque management. Read up on that.
Reduce this to something like 0.150 or 0.100 and you
will see the shift time decrease. Some tools and some
people set it to zero, but then you give the PCM an
impossible goal and make it use full pressure. So if you
are happy with the action at (say) 0.200 there's not
a need to beat ir down. You can also play with the shift
pressures if the adaptation time doesn't entirely satisfy.
Also part of what you feel that aggravates you, may
be the torque management. Read up on that.
