Too much vacuum? Issue!
06-22-2013, 07:21 PM
#1
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Too much vacuum? Issue! Many thanks in advance but here is the issue.
Short story: Changed all clutch components now pulling too much Vacuum.
Long story: Recently I changed out the clutch and Master/Slave cylinders to the clutch to a Tick and Monster 4 setup. Since then I have had an issue with pulling too much vacuum (18" normally, now 21-23') which is pulling the engine down to almost a stall. During the Tick Master install I had to remove the Brake Booster and it caused it to leak so I then replaced it. Still have a strong vacuum pull once warmed up any ideas?
Mods are:
D&D performance built transmission
Billet Pro Series Shifter
Gforce1320 1000hp carbon fiber one piece drive shaft
Gforce1320 level 3 300m anti-wheel hop axels
Gforce1320 level 3 inner stubs
Monster stage 4 clutch
Tick performance remote clutch speed bleeder
Tick performance Tick shift master cylinder
APS Twin Turbo
BMR drag bags
Gforce1320 3.73 rear end
Gforce1320 detriot trutrac
Harrop Diff cover
Short story: Changed all clutch components now pulling too much Vacuum.
Long story: Recently I changed out the clutch and Master/Slave cylinders to the clutch to a Tick and Monster 4 setup. Since then I have had an issue with pulling too much vacuum (18" normally, now 21-23') which is pulling the engine down to almost a stall. During the Tick Master install I had to remove the Brake Booster and it caused it to leak so I then replaced it. Still have a strong vacuum pull once warmed up any ideas?
Mods are:
D&D performance built transmission
Billet Pro Series Shifter
Gforce1320 1000hp carbon fiber one piece drive shaft
Gforce1320 level 3 300m anti-wheel hop axels
Gforce1320 level 3 inner stubs
Monster stage 4 clutch
Tick performance remote clutch speed bleeder
Tick performance Tick shift master cylinder
APS Twin Turbo
BMR drag bags
Gforce1320 3.73 rear end
Gforce1320 detriot trutrac
Harrop Diff cover
06-23-2013, 11:17 AM
#4
What year is the motor. Sounds like a PCV issue to me.
High manifold vacuum at idle shuts the valve in a PCV even more tight. This will cause some large vacuum levels if there is not a place for the motor to breathe.
Any oil in the manifold or catch can?
Also food for thought - be sure that you evacuated all of the air from the brake system. Part changes like that at one time can cause some monstrous air pockets.
High manifold vacuum at idle shuts the valve in a PCV even more tight. This will cause some large vacuum levels if there is not a place for the motor to breathe.
Any oil in the manifold or catch can?
Also food for thought - be sure that you evacuated all of the air from the brake system. Part changes like that at one time can cause some monstrous air pockets.