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Old 11th June 2006, 14:04   #1
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Default Blow Off Valve For Turbo

Guys,

I want to know what is Turbo Blow Off Valve?
How Does It Work ?
Can anyone please provide the picture of it ? Can it be fitted in Skoda/Merc?

I have heard, hissing sound of turbo is awesome,
and it comes from Blow Off valve, Is that TRUE?

Experts So Please Help Me Out..

Cheers,
Mugen_Power.
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Old 11th June 2006, 15:05   #2
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Try this link

http://www.newton.dep.anl.gov/askasc...9/eng99202.htm
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Old 12th June 2006, 13:35   #3
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Quote:
Originally Posted by Mugen_Power
Guys,

I want to know what is Turbo Blow Off Valve?
How Does It Work ?
Can anyone please provide the picture of it ? Can it be fitted in Skoda/Merc?

I have heard, hissing sound of turbo is awesome,
and it comes from Blow Off valve, Is that TRUE?

Experts So Please Help Me Out..

Cheers,
Mugen_Power.
The blow off valve is basically a diverter valve the only difference being that the Blow off valve exits the excess air into the atmosphere whereas the Diverter valve diverts the air back into the intake system.

Since you are looking for sound the bad news is you cannot fix a blow off valve on a Skoda or a Merc. The ECU will see it as a fault and will show up a CEL( Check Engine Light). The closest option for you is to use an aftermarket Diverter Valve like the Forge ones but again they can be used only for the Skoda Petrol 1.8T's. HOPE THIS HELPS
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Old 19th July 2008, 01:26   #4
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How much does a Blow Off Valve cost for a Skoda Octavia vRs
And Also the turbo timer.

Where can i get these things in Delhi?

Last edited by abhinav.gupta88 : 19th July 2008 at 01:30.
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Old 19th July 2008, 08:41   #5
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Contact Arush (Autopsyche). I am sure he will be able to help you. +91 9810518681 / +91 9999037771
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Old 20th July 2008, 00:59   #6
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Quote:
Originally Posted by abhinav.gupta88 View Post
How much does a Blow Off Valve cost for a Skoda Octavia vRs
And Also the turbo timer.

Where can i get these things in Delhi?
Now why do you need to intstall that in a perfectly running car. just for the sound?
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Old 20th July 2008, 11:44   #7
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Quote:
Originally Posted by abhinav.gupta88 View Post
How much does a Blow Off Valve cost for a Skoda Octavia vRs
And Also the turbo timer.

Where can i get these things in Delhi?
An RS uses a Diverter Valve and cannot be fitted with a BOV as both work in the same way but divert the excess air in seperate areas.
I think its a Japanese "thing" to use BOVs and an European "thing" to use a Diverter Valve.
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Old 20th July 2008, 21:57   #8
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Quote:
Originally Posted by V-16 View Post
An RS uses a Diverter Valve and cannot be fitted with a BOV as both work in the same way but divert the excess air in seperate areas.
I think its a Japanese "thing" to use BOVs and an European "thing" to use a Diverter Valve.
Ive seen and heard a couple of skodas with bovs in Bangy.It should be possible.

Last edited by binz : 20th July 2008 at 21:59.
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Old 20th July 2008, 22:20   #9
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All OEM installations (regardless of country of origin) use diverter valves (or compressor bypass valves) because BOV's dont make much technical sense. Its only for the noise. You get much better spool between shifts with a diverter than a BOV.

Last edited by ananthkamath : 20th July 2008 at 22:22.
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Old 21st July 2008, 00:37   #10
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What is the added benefit of Diverters . How much will it cost?
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Old 7th August 2011, 16:53   #11
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Default Re: Blow Off Valve For Turbo

Guys , was just scrolling through threads when i came through this discussion , just want to ask , just finalized a deal on a skoda octavia vRS , and since i thought of getting one , i wanted to install a BOV in it , just to hear the whistle sound , i must confess i don't know anything technical about it , but can it be installed on vRS ? i think some BHPians already got their vRS cars fitted with a BOV , can anyone help me here please ?
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Old 10th August 2011, 15:43   #12
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Default Re: Blow Off Valve For Turbo

Quote:
Originally Posted by turboindia View Post
The blow off valve is basically a diverter valve the only difference being that the Blow off valve exits the excess air into the atmosphere whereas the Diverter valve diverts the air back into the intake system.

Since you are looking for sound the bad news is you cannot fix a blow off valve on a Skoda or a Merc. The ECU will see it as a fault and will show up a CEL( Check Engine Light). The closest option for you is to use an aftermarket Diverter Valve like the Forge ones but again they can be used only for the Skoda Petrol 1.8T's. HOPE THIS HELPS
Peter Sir , Can you please let me know about the cost of the aftermarket Diverter Valve you mentioned here , for my Skoda vRS ?
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Old 10th August 2011, 17:00   #13
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Default Re: Blow Off Valve For Turbo

I think the correct technical thing is Compressor By Pass valve. It simply releaves the excess boost pressure than what is required by the engine. And In a way is required in every installation. Has any body heard of Turbocharger surging? This device reduces the opportunity of Turbo Surge.
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