Blocking Bov Vacum Hose

[OVADRV]

R33 RB25det what will happen if you remove the (standard BOV) vacum hose and then block the vacum hose??

[r32man09]

Probley Fu*k the turbo I wouldn't f**k around with bov's.

Edited October 9, 2010 by r32man09

[89CAL]

remove the vac hose, it will most likely leak under boost and then not release air when it returns to vacumm

so basically do everything wrong

[Rekin]

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]

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!

[99 GTT]

Just one question ......

WHY?

[OVADRV]

Yes rekin talking about the small vacuum hose attached to the standard bov,we have disconected it and all it does is flutters.Will this cause damage or use more fuel,engine runs as per normal.

[Samuel Leonard]

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

[JonnoHR31]

you havent answered the main question. WHY?

i cant think of any good reason to leave it off

[limpus]

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]

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]

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.