BOV

[denz]

how many pounds can the duel valve BOV hold before it leaks. and what is the second spring for.

[Stinger]

It really shouldn't leak under any "typical" boost pressure by design. The other spring is to adjust how early/late the valve goes off. Light pressure means it will vent when little to no boost is present, stiff spring means it won't vent until there is definite boost present.

[denz]

ok is it typical to have some light back pressure come from my turbo still . and when i really get on it and get out then i can here it work.

[Stinger]

If the spring is tight then it will still have a little pressure in the system and not release until you get on it pretty hard.

[denz]

so the little presure that comes out the turbo before the valve opens will or will not hurt my turbo. I was told that the back pressure on the turbos bad.

[Stinger]

You can change out the springs and adjust how much air exits out the turbo before the valve opens. It shouldn't be enough air to cause any damage but a softer spring will eliminate it.