I have a "HKS SUPER BLOW OFF VALVE". An old model, not the SSQV. It gives a standard PSCHHT.
- It is mounted between the turbo and the intercooler (not throttle body and intercooler).
- Running only 8-9psi
What is wrong at the moment is that it only vents half the air into the atmosphere, ie. half the air goes back through the system and makes the chuchuchu noise.
The noise it is making atm is Chu-Chu-PSCHHT
What can be the cause of this problem? Vacuum hose too thin? The BOV is either opening too slowly, or opening too late?
Any ideas?
PS> My BOV has two 'outlets' or nipples, I am not sure why it has two, but only one is connected to the vacuum source, the other is left unplugged. Having both T-pieced together renders the BOV useless (I tried before).