I have a 2004 350z with stock engine and internals plus the mods listed in my signature. over the winter, I will be installing a UTEC and 440cc injectors along with a tune probably from AAM. If anyone has this on their kit or if anyone has any good advice, tell me if a 9 psi pulley will be safe on stock internals if I go back and get dyno tuned with the increased boost. hopefully the 9 psi and UTEC can get me to or slightly over the 400 whp mark. Any thoughts?

 

If the procharger is anything like the Vortech, 9psi should be fine. Sorry, I didn't really answer your question. Out of curiosity, does the Procharger usually make more power than a Vortech? You are making more power than some people with a 9psi Vortech.

 

read this thread

https://my350z.com/forum/forced-induction/222165-special-10-000-00-turbonetics-kit.html

 

i have the 9lb pulley's for sale if you decide to go that way.

(extra from my earlier procharger setuop)

 

You'll be fine @ 9psi with the 440's, a return system , pump, and a GOOD tune.