4l80e Transbrake Question/ Possible Problem?
09-11-2013, 10:02 PM
#1
4l80e Transbrake Question/ Possible Problem? Guys. I have a FMVB Rossler Built 4l80e with a transbrake setup on my boosted Trans Am. Here is the issue that I am having.. When the transbrake is engaged the car builds boost up to about 5lbs and starts slowly pushing through. It slowly creeps up and dose not stand still. If there is no boost applied the transbrake does what its supposed to. I would like the car to build about 10lbs before I release the brake. But it will only build up to about 5lbs and it starts pushing through by itself.
Does anyone have information on this? Is there something wrong with the brake or the trans? Any suggestions would be helpful.
Thanks in advance.
Does anyone have information on this? Is there something wrong with the brake or the trans? Any suggestions would be helpful.
Thanks in advance.
09-11-2013, 10:21 PM
#2
If it's full manual it should be fixed line pressure unless it has a vacuum modulator.
Check line pressure and see.
One of the issues we see with our transbrakes is that we keep variable line pressure on the computer operated units, and the end users don't tune for or account for transbrake use needing to be at full pressure for best results.
If it's electronically controlled pressure you can setup the wiring so you have a cutout on the PCS circuit on transbrake apply.
Check line pressure and see.
One of the issues we see with our transbrakes is that we keep variable line pressure on the computer operated units, and the end users don't tune for or account for transbrake use needing to be at full pressure for best results.
If it's electronically controlled pressure you can setup the wiring so you have a cutout on the PCS circuit on transbrake apply.
09-11-2013, 10:55 PM
#4
10 Second Club
iTrader: (27)
Join Date: Sep 2008
Location: Lake Tapps, WA
Posts: 2,229
Likes: 0
Received 0 Likes
on
0 Posts
If it's full manual it should be fixed line pressure unless it has a vacuum modulator.
Check line pressure and see.
One of the issues we see with our transbrakes is that we keep variable line pressure on the computer operated units, and the end users don't tune for or account for transbrake use needing to be at full pressure for best results.
If it's electronically controlled pressure you can setup the wiring so you have a cutout on the PCS circuit on transbrake apply.
Check line pressure and see.
One of the issues we see with our transbrakes is that we keep variable line pressure on the computer operated units, and the end users don't tune for or account for transbrake use needing to be at full pressure for best results.
If it's electronically controlled pressure you can setup the wiring so you have a cutout on the PCS circuit on transbrake apply.
