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Author Topic: Pop-off vent  (Read 3363 times)

Peskarik

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Pop-off vent
« on: 25 April 2007, 15:31 »
Hello.

What is the pop-off vent and what does it do?  :embarassed: Is it the thing that makes that cool sound of air being released when you change gears? (Sorry, I am no motor expert  :embarassed: ).
I am asking myself whether I should install one on Jubi (once it arrives in 2.5 months).  :undecided:
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Offline wantmygti

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Re: Pop-off vent
« Reply #1 on: 25 April 2007, 15:53 »
Eh??
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2017 GTi Clubsport arrived June 2017
2007 Shadow Blue GTi, sold on after 10 years ownership

Offline Nathan

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Re: Pop-off vent
« Reply #2 on: 25 April 2007, 16:01 »
Is he/are you talking about a dump valve?
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Offline Creepy Coupe

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Re: Pop-off vent
« Reply #3 on: 25 April 2007, 16:04 »
Quote from: Nathan on 25 April 2007, 16:01
Is he/are you talking about a dump valve?

I think so, and they make you look/sound like a Chav  :sick:
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Peskarik

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Re: Pop-off vent
« Reply #4 on: 25 April 2007, 16:08 »
FROM WIKIPEDIA:
A blowoff valve is a pressure release system present in turbocharged engines, its purpose is to prevent compressor surge and reduce wear on the engine. A blowoff valve, (BOV, sometimes hooter valve, dump valve) does basically the same thing, but releases the air to the atmosphere. This creates a very distinctive sound desired by many who own turbocharged sports cars. Some blowoff valves are sold with trumpet shaped exits that amplify the "Psshhhh" sound, these designs are normally marketed towards the tuner crowd. For some owners this is the only reason to fit a BOV. Motor sports governed by the FIA have made it illegal to vent unmuffled blowoff valves to the atmosphere. In the United States, Australia and Europe cars featuring unmuffled blowoff valves are illegal for street use.

FROM B&B:
http://www.bb-automobiltechnik.de/bb2004/de/produkte/zubehoer/pop-off.php

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Offline wantmygti

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Re: Pop-off vent
« Reply #5 on: 25 April 2007, 16:15 »
Ok so pop off valve = dump valve.

now, whats a jubi?
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2017 GTi Clubsport arrived June 2017
2007 Shadow Blue GTi, sold on after 10 years ownership

Peskarik

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Re: Pop-off vent
« Reply #6 on: 25 April 2007, 16:36 »
Quote from: wantmygti on 25 April 2007, 16:15
Ok so pop off valve = dump valve.

now, whats a jubi?

 :laugh: Jubi is the German name for GTI Ed30.  :smiley: It stands for Jubiläum = Anniversary

Here, some more info on blow-off valve, in English:
http://www.forgemotorsport.com/content.asp?inc=product&cat=1703&product=FMDVFSiT
« Last Edit: 25 April 2007, 16:37 by Peskarik »
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Offline henspeed

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Re: Pop-off vent
« Reply #7 on: 26 April 2007, 08:44 »
Dump Valve = CHAV
Dont do it people
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Offline Nathan

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Re: Pop-off vent
« Reply #8 on: 26 April 2007, 09:10 »
I totally agree mate, Dump Valves are just another extra for the chava!
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Offline henspeed

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Re: Pop-off vent
« Reply #9 on: 26 April 2007, 09:12 »
Do they actually serve any purpose over a standard wastegate?
Or is it just tho go whooosh every time you come off boost?

Pointless piece of s**t in my opinion
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