Here is the setup -
Head ports are plugged.
I have the VTT valve cover with a -8 line into catch-can then out of catch-can to a check valve flowing into a -8 on the intake manifold.
The car is pulling tremendous amounts of vacuum that the car won't idle without the oil cap off (which makes sense because the system is closed) When the oil cap is off I still measured 25hg of vac at idle.
I also have the VTT vac relief fitting that does not seem to do anything.
What is the best way for me to get vac relief? I thought about getting the VTT crank case breather and taking out the ball to just have a filtered vac relief, are there any other options?
Do I replace my check valve with a PCV valve to limit the amount of vac?
Head ports are plugged.
I have the VTT valve cover with a -8 line into catch-can then out of catch-can to a check valve flowing into a -8 on the intake manifold.
The car is pulling tremendous amounts of vacuum that the car won't idle without the oil cap off (which makes sense because the system is closed) When the oil cap is off I still measured 25hg of vac at idle.
I also have the VTT vac relief fitting that does not seem to do anything.
What is the best way for me to get vac relief? I thought about getting the VTT crank case breather and taking out the ball to just have a filtered vac relief, are there any other options?
Do I replace my check valve with a PCV valve to limit the amount of vac?