Post by
C-Kwik »
https://forums.nicoclub.com/c-kwik-u426.html
Sun Oct 16, 2005 9:40 am
That vacuum block is nice, but for the money, I'd just use T-s off more appropriately sized vacuum sources.
TV: the BOV and boost gauge need to be sourced from the intake mani. Well the boost gauge doesn't necessarily need to be, but you will then only see pressure in the intercooler piping as opposed to the intake mani where it matters. If you attach the BOV signal to the intercooler piping, it will never open. The BOV opens when there is pressure in the intercooler piping, and vacuum in the intake mani(which occurs when you close the throttle during boost).
When I had my S14, I had a 5 port T-fitting on the FPR line from the intake mani. Attached the boost gauge, BOV, and wastegate to it.