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Blocking Bov Vacum Hose

OVADRV

By OVADRV,
in Engines & Forced Induction

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Rekin Grand Master

Rekin

Posted
Posted

are you talking about the small vacuum hose attached to the standard bov? This is the vacuum hose which opens the BOV. By blocking it off, you will be stopping the BOV opening and hence will result in fluttering. Although not sure what damage it could cause? Wouldnt be any different from running with no bov i reckon... Someone confirm this.

Duncan Grand Master

Duncan

Posted
Posted

actually it's the opposite...without the vacuum feed the BOVs will always be open so it will never boost.

unless OP means...what if I do all that because I am running some other BOV system...in which case just drop off the vacuum line so there is no leak and off you go!

Samuel Leonard Rising Star

Samuel Leonard

Posted
Posted

it runs from the intake manifold to the blow off valve, right? that is the intake's way of telling the blow off valve when shit's getting serious and to remain closed.

if you unplug that line i would guess whenever you achieve boost you will hear the bov whistling and releasing your hard earned boost.

don't know how much you know about turbos and how the whole system works but i would also say the wastegate might open a bit later due to the lower pressures in your intake piping from the bov leak. if this happened, your turbo would spool harder so i wouldn't suggest it. you don't know when a turbo will let go.

treat it like a bitchy woman... Treat it nicely and it will continue to blow for years to come ;)

limpus Mentor

limpus

Posted
Posted
are you talking about the small vacuum hose attached to the standard bov? This is the vacuum hose which opens the BOV. By blocking it off, you will be stopping the BOV opening and hence will result in fluttering. Although not sure what damage it could cause? Wouldnt be any different from running with no bov i reckon... Someone confirm this.

I'll confirm it...you reckoned WRONG....

Like Duncan said...if the bov doesn't get a pressure source when boosting...it creeps open and you lose boost pressure through it...not rocket science here...just common sense....

OVADRV Collaborator

OVADRV

Posted
  • Author
Posted
it runs from the intake manifold to the blow off valve, right? that is the intake's way of telling the blow off valve when shit's getting serious and to remain closed.

if you unplug that line i would guess whenever you achieve boost you will hear the bov whistling and releasing your hard earned boost.

don't know how much you know about turbos and how the whole system works but i would also say the wastegate might open a bit later due to the lower pressures in your intake piping from the bov leak. if this happened, your turbo would spool harder so i wouldn't suggest it. you don't know when a turbo will let go.

treat it like a bitchy woman... Treat it nicely and it will continue to blow for years to come ;)

well put thanks,you have answered that all i wanted to know.

The Mafia Grand Master

The Mafia

Posted
Posted

Disconnected mine because I was having issues with something, and yeah, a 300rwkw car turned into a 80rwkw car.

Wouldn't go over 10psi and stalled, and ran like shit.

It is there for a reason.

So no flutterz fully sic bro.

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