| Author |
Message |
Justin Camilleri
TryHard
QLD
Had a 85 MZ10, 92 TT, Now 91 TT
Posts: 373
Reg: 07-2005
|
Hey guys, now I'm on the market for a bov to replace my old blitz one. Basically I need one that can hold up to 18 pounds of boost, as that is going to be my max when I am getting my car tuned. I'm not too sure on this, is there anyone out there running that much boost with an aftermarket bov? |
Daniel Clarke
DieHard
NSW
TT 2.5L 6 cylinder
Posts: 629
Reg: 03-2006
|
Hope you dont mind me adding another question here.
Can the stock BOV leak whilst running 15-16psi? WOuld it make an audible noise? |
Bill Bogiatzis
TryHard
NSW
TT
Posts: 160
Reg: 04-2006
|
There are heaps out there running over 20 psi. A bov shouldnt be a big issue as good ones can handel over 65 psi.
You might have to throw a couple of hundred to get a trusted brand name though. |
Jeff Smith
DieHard
NSW
TT Limited :-) equiped toyota torsen diff
Posts: 649
Reg: 07-2005
|
Bill Bogiatzis wrote on Wednesday, September 27, 2006 - 10:32 pm:You might have to throw a couple of hundred to get a trusted brand name though.
2nd that. |
Vinh Bui
DieHard
NSW
94 UZZ31 (V8) / 96 JZZ30 (TT)
Posts: 785
Reg: 07-2005
|
Stock BOV should easily handle 15-16psi.
Justin, go for a trusted brand name like HKS or GReddy. Do a search on google for the websites and you may be able to gain some info there. |
Maurice Diggler
TryHard
Victoria
Twin Turbo
Posts: 280
Reg: 06-2006
|
Daniel, I had mine on the dyno and it was leaking from anything above 16psi.
I will tell you on MSN in more detail. |
Robert Jeffs
Tinkerer
nsw
Soarer TT
Posts: 70
Reg: 07-2005
|
I have a GFB Stealth FX BOV and it seems to perform well. |
Ryan Rankovic
DieHard
Victoria
Soarer TT GT-TL
Posts: 767
Reg: 07-2005
|
i paid around $400 for a turbosmart one... i doubt that would have any problems holding 18+ psi |
Benjamin Burgess
DieHard
NSW
Toyota Soarer GT-TL
Posts: 644
Reg: 07-2005
|
I use a tial BOV. $250 odd. I run about 20psi and plan to run more. They look sexy as well.
http://bburgess.gallery.netspace.net.au/albums/Single-Turbo-Conversion/P1000283_Custom.jpg |
Justin Camilleri
TryHard
QLD
Had a 85 MZ10, 92 TT, Now 91 TT
Posts: 374
Reg: 07-2005
|
Robert, I was thinking about getting a stealth fx. It would be great to have a bov with 17 adjustable settings, hand adjustable too! Though from their website they are not cheap.
Benjamin, what would you compare the sound it makes to? |
Benjamin Burgess
DieHard
NSW
Toyota Soarer GT-TL
Posts: 645
Reg: 07-2005
|
Ask Aka what it sounds like, he heard it a bit on the recent sydney cruize. I'm not much of a bov sound aficionado. |
Bill Bogiatzis
TryHard
NSW
TT
Posts: 162
Reg: 04-2006
|
My ones sounds like my car is sneezing.
Unless you go for a sequential which sounds a little like a dose pipe/compression surge or whatever they call it. |
Callum Finch
Goo Roo
WA
Soarer TT & Corolla
Posts: 1944
Reg: 09-2005
|
I have pushed ~22psi through my system at a couple of stages.
Stock bov and aftermarket blitz one both seemed to hold. |
Justin Camilleri
TryHard
QLD
Had a 85 MZ10, 92 TT, Now 91 TT
Posts: 375
Reg: 07-2005
|
Ok, another question. On a soarer, where is the best place to install a blow off valve? I have heard things about pressure differences leaving the turbo and being reduced by a few pounds when it gets to the manifold? |
Jose-Antonio Castillo
DieHard
NSW
Soarer VVTi
Posts: 909
Reg: 07-2005
|
Most kits I've seen for the Soarer have a pipe that goes between the intercooler and the throttle. Here's a pic of my Blitz blow off valve on my old car (near the battery).
|
Drew Hiron
TryHard
Queensland
Soarer TT
Posts: 133
Reg: 08-2005
|
or if you want to hide it, the IC piping just behind the front bar on the drivers side also works. |
Callum Finch
Goo Roo
WA
Soarer TT & Corolla
Posts: 1956
Reg: 09-2005
|
PTSSSHH!! |
Jeff Smith
DieHard
NSW
TT Limited :-) equiped toyota torsen diff
Posts: 653
Reg: 07-2005
|
Here is a pick of my Turbosmart v-port2 BOV.
|
Trevor Tai
TryHard
NSW
Soarer GT-TL
Posts: 114
Reg: 07-2005
|
Jeff, where did you get that piping from?!?!?! I want! I want! |
Jeff Smith
DieHard
NSW
TT Limited :-) equiped toyota torsen diff
Posts: 655
Reg: 07-2005
|
I bought it from Simon(Gangster)But I think he got them off Lew,I'm not sure.Most muffler places could make them up for you. |
Sam Koek
TryHard
VICTORIA
2.5GT-T Manual
Posts: 180
Reg: 08-2005
|
Excuse me gentlemen,
I have a silly question to ask.
We know that after market blow off valves are illegal.
What happens if we run 2 x blow off valves in our TT?.
I mean, I keep the stock blow off valve in the original position, then install the after market blow off valve somewhere else, like hiding under it and welded to one of the intercooler pipes somewhere the police wpold find hard to see, so when the police check the blow off valve they will only see the stock one.
Is it ok to run 2 blow off valves like that? |
Jeff Smith
DieHard
NSW
TT Limited :-) equiped toyota torsen diff
Posts: 660
Reg: 07-2005
|
It can be done but defeats the purpose of why you need the BOV. |
Vinh Bui
DieHard
NSW
94 UZZ31 (V8) / 96 JZZ30 (TT)
Posts: 796
Reg: 07-2005
|
Sam, you could keep the stock BOV and block it off then install an aftermarket one in a hidden area (e.g. on the intercooler piping behind the front bar somewhere.) |
Sam Koek
TryHard
VICTORIA
2.5GT-T Manual
Posts: 181
Reg: 08-2005
|
Why i need the BOV? i don't understand your question, Because my car come with BOV or because Turbo car has BOV? is this the right answer? I am sorry, i don't know anything about the performance or engine's thing. |
Callum Finch
Goo Roo
WA
Soarer TT & Corolla
Posts: 1975
Reg: 09-2005
|
The blow off valve can be described as an "EMERGENCY BOOST RELEASE OMG DONT NEED ALL THAT AIR!" device.
Basically, as you increase pressure through teh turbos more fuel is pumped in to the engine to keep things balanced.
When you take your foot off the throttle you want to stop air and fuel going in to your engine. The fuel is easy enough, but those turbos are still spinning as the exhaust gets bumped out. The blow off valve opens and all the excess pressure is released.
Im sure someone can explain it better than that. I know what i mean in _MY_ head =P
The stock blow off valve is connected in to your intake (i think?), so when you hop off the throttle and the valve opens all the excess air is fed back in to your intake (or exhaust?), so you wont hear the wanky "PTSH!"
Aftermarket blowoff valves are only for when you want to sound cool for the kiddies or if you are running more pressure than the stock blowoff valve can handle.
Personally, i have one for the kiddies. |
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