Little boost?
I had an issue with my BPV, and I noticed that the boost I was able to get was very inconsistant and very laggy. I could actually see a vacuum at 4k RPM at WOT for just a second or two and then suddenly I'd get 3-5psi. I've seen belt slip, and it behaves as it should until you get to a certain RPM/boost level. So, if you stab the gas, you'll get instant boost... just not as much as you want.





