i've attached a link to this video i've had for a while. It is a beautiful 300ZX with a single turbo conversion running about 22psi. It sounds incredibly mean, but what is that sound it makes? Is it a different sounding BOV or what? It makes the noise on his first pass under the bridge, right when he shifts, so it must be the blow off valve, but I've never heard one sound like that. Can anyone shed some light here?
(And I have more of his videos if anyone wants em)
http://www.wannafork.com/files/joel(PA)_compilation.WMV