I just finished bolting, running everything and fired it up for the first time and everything was sound. The down side was that i could not driver her since i had no FMU yet... didnt want to merc my engine. Anywho when it came to fab an intake I had to choose... I went with a polished TIAL bov. It came w/ 11lb spring but they say the stiffness is for a reason. It isnt visibly open at idle but im only running 6psi and I have a softer 7lb and 9lb coming. It does blow off with an engine rev, I must have hooked it up correctly, I used a rather large 1/4'' manifold line for actuation so i know under pressure it will open.
Cribbj, I'm glad you brought up the triple the pressure when throttle plate is closed tip. I had not researched that. I do however have low boost and 6psi multiplied by 3 is 18psi and if you WERE running 18psi w/ supporting engine its not like the throttle plate cannot handle 18psi, what im getting at is that it isnt a critical issue for my circumstances. I figure the bov has a 11psi string anyway so if I had lets say... 12psi, that would make 36psi in the intake tract so i could see the dangers there but w/ a stiff 11psi spring it will open at 11psi.... not like 11psi is dangerous on the engine when the blower is pumping 6, is it?? my thinking tells me no even with the spring imbalance. However I would like a closer matchup for pulley/bov spring. I love the TIAL WHOOOOSH and am keeping her but they only offer limited sizes, 7, 9, 11. what happens though if you have 11psi intake pressure and a blower sitting at idle?? surgeing back into blower?? is that bad?? at idle in particular??