Who knows more about this? From looking around high boost applications should really have this. Im talking like 30psi+ here. One would be set to a lower pressure and one higher from what I can find. Anyone have any good info to add? Just doing some extra research about stuff is all. Thought this was really interesting.

 

it'sa flow question..
either you run a single high flowing BOV (aka tial) or you run 2 smaller les flowing ones

i do know that a single turbo XS RFL will work with a gt35, so i'd say you'll be ok with a good single one

 

Ya like Denis said you don't really need to run 2 BOV's unless your not using big ones. If that's the case run one before the IC and one after the TB. As for their settings, its something you'll have to tune yourself. I'd set the one before the IC to a softer setting than the one after the TB.

 

It might be difficult to tune the 2nd one. You may want to get some sort of a preset maximum, or remove the first BOV to tune the 2nd BOV. Also, the failsafe, or the one set higher, should be located downstream (closer to the TB) so as to not have air from the standard BOV moving across it thus lowering pressures slightly, darn Bernouli. Theoretically, it's a great idea to prevent boost creep. Best of luck.

 

Ahh, that explains it a bit better Dennist. Ive seen a lot of setups using dual 1g DSM BOVs so that makes sense.