Found this site while I was researching BPV's. It covers all the working basics and does a decent head to head comparison of seven BPV's including the Forge, Bailey, Stratmosphere, TurboXS and some different stock level Bosch units.

http://dv.mistertam.com/

...enjoy.

 

that is a great site with detail info

 

I thought so too

 

thats awesome info, but i have the turboxs bpv on my trd scer, he says he recomends intalling it reversed, whats that mean? will it work that way? and are we supposed to grease the iside of them? lol sorry bout the questions, but i dont c how it would worke reversed.

 

Vacuum pressure in the small hose sucks the piston up and allows air to pass. 'Reversed' you're just switching the direction of the air flow into the chamber. The vacuum hose on the top of the unit remains the same.



I've heard people mention things about installing the bpv both 'upside down' or 'reversed'. I get installing it in reverse, but how do you install it upside down? ...perhaps its the same thing and just a matter of symantics.

 

for the masses:

Simplyscion just confirmed that reverse and upside down are the samething.

 

so how exactly do u install it reversed

 

take the hose from (in the pic above) #1 and swap it with the #2 hose.

 

wow and thats totally safe?

 

yup. In fact it should hold boost better.

 

Wont just putting a stiffer spring or a washer do the same thing though?

 

this might sound nub but where do can you buy bpvs?

 

just google some of the names mentioned in the above posted article