Soarer Central: Archive through January 11, 2006

Soarer Central General Soarer Chat BOV Archive through January 11, 2006

Previous Next

Author

Message

Damian Ware
Tinkerer
Victoria
Camry

Posts: 22
Reg: 10-2005

Rating: N/A
Votes: 0 (Vote!)

Sunday, January 08, 2006 - 11:50 pm, by: Damian Ware (Frozenpod)

What is a BOV why is it needed?

The stock TT already has one so why do most people add a extra aftermarket one?

I thought they were not legal for street cars is this correct?

Ryan Rankovic
TryHard
Victoria
Soarer TT GT-TL

Posts: 281
Reg: 07-2005

Rating: N/A
Votes: 0 (Vote!)

Monday, January 09, 2006 - 12:30 am, by: Ryan Rankovic (Ryan1j)

if you run high boost, its my understanding that the stock BOV will leak causing your boost to drop....
aftermarket ones can handle higher psi (depending on price)

a BOV prevents compressor surge, which i think is exhaust gasses travelling back towards the turbo once the throttle butterfly has been closed. air travelling backwards into a forward spinning turbo = bad.
however some people say compressor surge is BS.

atmospheric venting BOVs (ones that go ptshhh) are illegal. however full plumback ones (quiet) are legal (im pretty sure)

i think thats all correct what i just said

Callum Finch
DieHard
WA
Soarer TT

Posts: 596
Reg: 09-2005

Rating: N/A
Votes: 0 (Vote!)

Monday, January 09, 2006 - 01:41 am, by: Callum Finch (Sigeneat)

I have a permit for my BOV =3

But it doesnt go "PTSSHH".. it goes "WHOOOSH"

Troy Baker
TryHard
Carnarvon WA
Soarer HKS Single Turbo

Posts: 104
Reg: 09-2005

Rating: N/A
Votes: 0 (Vote!)

Monday, January 09, 2006 - 01:50 am, by: Troy Baker (Sincity)

Yep same as Callum, I have permit. It seems in WA that as long as it isn't really loud it isn't really important to the pits inspectors. Good thing too, one example of common sense prevailing.

Callum Finch
DieHard
WA
Soarer TT

Posts: 600
Reg: 09-2005

Rating: N/A
Votes: 0 (Vote!)

Tuesday, January 10, 2006 - 12:27 am, by: Callum Finch (Sigeneat)

I wonder if i can get a permit for a mod to my bov which includes a party blower and a rubber hand

Brooom--fsshh- *rubber hand inflates* -shhh *rubber hand deflats through party blower* FFVVVVVVVOOOOOO Brooooom

Jose-Antonio Castillo
TryHard
NSW
2.5GT-L VVTi

Posts: 430
Reg: 07-2005

Rating: N/A
Votes: 0 (Vote!)

Tuesday, January 10, 2006 - 01:05 am, by: Jose-Antonio Castillo (Ahh_soarer)

How can you get a permit for such things? Is this a WA only thing?

Simon Triantafillou
TryHard
NSW
Soarer Turbo

Posts: 402
Reg: 07-2005

Rating: N/A
Votes: 0 (Vote!)

Tuesday, January 10, 2006 - 09:30 am, by: Simon Triantafillou (Soarer)

Behind the times hey?

Matthew Sharpe
TryHard
North Island
3.0 GT

Posts: 230
Reg: 10-2005

Rating: N/A
Votes: 0 (Vote!)

Tuesday, January 10, 2006 - 09:48 am, by: Matthew Sharpe (Madmatt)

Hmm, perhaps I'm just a grumpy old bugger, but anything that makes a car louder without actually improving it in any way (i.e, blow off valves with bullhorn like attachments) are just stupid. Same with canon exhausts etc.

Matthew Sharpe
TryHard
North Island
3.0 GT

Posts: 231
Reg: 10-2005

Rating: N/A
Votes: 0 (Vote!)

Tuesday, January 10, 2006 - 11:22 am, by: Matthew Sharpe (Madmatt)

Too true on the wank factor - but as for sounding cool??? I can appreciate the asthetics of a nice set of wheels, but to me a 4 cylinder engine running huge boost with a 5 inch cannot farting out the back might as well just be a train going by or a jumbo taking off - its all just pointless noise. Guess its all a matter of perspective.

Paul Brockbank
TryHard
WA
Soarer TT

Posts: 308
Reg: 07-2005

Rating: N/A
Votes: 0 (Vote!)

Tuesday, January 10, 2006 - 02:54 pm, by: Paul Brockbank (Brockas)

I'm with Matthew on this one, and I actually have an atmo venting BOV...
My stock one died, and being tight on cash I got the cheapest aftermarket one possible, which in this case was just a GFB Basic. It does make the psssht sound but it's pretty quiet.

A BOV of some sort is essential. How anyone can claim that compressor surge is BS is beyond me.

Ryan Rankovic
TryHard
Victoria
Soarer TT GT-TL

Posts: 285
Reg: 07-2005

Rating: N/A
Votes: 0 (Vote!)

Tuesday, January 10, 2006 - 03:02 pm, by: Ryan Rankovic (Ryan1j)

compressor surge sounds better than any BOV

Paul Brockbank
TryHard
WA
Soarer TT

Posts: 309
Reg: 07-2005

Rating: N/A
Votes: 0 (Vote!)

Tuesday, January 10, 2006 - 04:08 pm, by: Paul Brockbank (Brockas)

Thats not what your turbos think...

There is a reason turbo cars come from the factory with a BOV...

Ryan Rankovic
TryHard
Victoria
Soarer TT GT-TL

Posts: 287
Reg: 07-2005

Rating: N/A
Votes: 0 (Vote!)

Tuesday, January 10, 2006 - 04:16 pm, by: Ryan Rankovic (Ryan1j)

yeah i know, but it sounds hektik bro

Kevin la Terra
TryHard
victoria
soarer GTTL

Posts: 111
Reg: 07-2005

Rating: N/A
Votes: 0 (Vote!)

Tuesday, January 10, 2006 - 04:52 pm, by: Kevin la Terra (Trdpsi)

what i would like to know is why would toyota put the factory bov in the back for. I mean the bov is only working of the back turbo not both of them ?

Damian Ware
Tinkerer
Victoria
Camry

Posts: 25
Reg: 10-2005

Rating: N/A
Votes: 0 (Vote!)

Tuesday, January 10, 2006 - 05:21 pm, by: Damian Ware (Frozenpod)

Ok so a BOV is needed, what is this surging,

the explanation I got from a mechanic was that it allows to pressure to release faster which is needed for gear changes so that the car doesn't run lean. Which some what makes sense, he said it also help to reduce turbo lag on the gear changes which didn't quite make sense to me.

I thought lag was due to the spool up time of the turbo, how would a BOV affect this.

Peter Nitschke
JunkFilterer
South Australia
GT4.0 V8

Posts: 2911
Reg: 11-2004

Rating: N/A
Votes: 0 (Vote!)

Tuesday, January 10, 2006 - 05:31 pm, by: Peter Nitschke (Pen)

By releasing back pressure, it allows the turbo to keep spinning so it is ready to go when you put your foot down again.

Don Bagnall
Moderator
New Zealand
1991 UZZ30 GT4.0 V8

Posts: 2008
Reg: 05-2005

Rating: N/A
Votes: 0 (Vote!)

Tuesday, January 10, 2006 - 05:34 pm, by: Don Bagnall (Baggs)

When I release "Back pressure" it allows me to open my mouth, and put more food in......noice

Peter Nitschke
JunkFilterer
South Australia
GT4.0 V8

Posts: 2912
Reg: 11-2004

Rating: N/A
Votes: 0 (Vote!)

Tuesday, January 10, 2006 - 05:39 pm, by: Peter Nitschke (Pen)

Don, please don't tell us about your wastegate.

Shane Ilich
DieHard
W.A.
Manual Single T

Posts: 603
Reg: 07-2005

Rating: N/A
Votes: 0 (Vote!)

Wednesday, January 11, 2006 - 01:36 am, by: Shane Ilich (Ferret)

Paul Brockbank wrote on Tuesday, January 10, 2006 - 02:54 pm:
I'm with Matthew on this one, and I actually have an atmo venting BOV...
My stock one died, and being tight on cash I got the cheapest aftermarket one possible, which in this case was just a GFB Basic. It does make the psssht sound but it's pretty quiet.

A BOV of some sort is essential. How anyone can claim that compressor surge is BS is beyond me.

however, there is also an argument that a lot of people end up fitting a BOV that doesnt actually vent enough air quickly enough...ie they pick it cos it "sounds good", when in reality if its venting properly it shouldnt really be that loud.