UPDATE
Ok, had a big day. Removed the entire supercharger assembly, redid all the vacuum connections. I noticed there was a bit of a coolant line leaking so I fixed that. I took the SC assembly apart and re-sealed absolutely everything, added all the neccessary gasket sealant and really took my time making sure everything was on right and torqued right.
Adjusted the throttle cable as well. The car no longer has any idleling issues which is great! Took it for a spin, the boost gauge (which was tested now) still reads 4.1psi. The thing is though that the car pulls really strong. I've driven 2007+ 325 and 328 and I really feel I could keep up, so I'm thinking its running how its suppose to.
I forgot to mention earlier that I have a 8:1 compression ration because of a thick metal gasket when I redid my head. Could this be the reason for the lower boost? Since more air is needed to fill the cylinders. |