Loud blowoff valve

[Deception]

Hi guys. I'm looking for a loud blowoff valve for my S6 AAN. The car is currently stock but it will soon put in a K26/K27 hybrid turbo. I'd like the BOV to produce a sound similar to this one: http://www.youtube.com/watch?v=-DaCsDp1m8U.
Does it make sense to install the BOV while the car is stock or should I wait until the turbo is Installed?
Please suggest a similarly sounding BOV that is not a cheap piece of junk and doesn't cost an arm and a leg either.

[driftin jo]

It's not a good idea to fit an atmospheric BOV to your car unless you are running an after market ECU, the standard motronic system is MAF based and if you dump to atmosphere the car over fuels when you change gear and you will get bore wash etc, not good.
Why do you want to draw attention to you car by making it sound like a rice racer anyway ?

[UrS4boy]

Does it make sense to install the BOV ?

DriftinJo gave you the correct answer. BOV = ricer boy PLUS it is technically not a good idea, as he suggested. Here are the reasons why:

http://forums.quattroworld.com/s4s6/msgs/20994.phtml

[LunarWolf]

Try this..... Perfect!

http://www.ebay.co.uk/itm/SABRE-EDV-...item4ab59d634b

[driftin jo]

Try this..... Perfect!

http://www.ebay.co.uk/itm/SABRE-EDV-...item4ab59d634b

[Error404]

The answer is in the title - use an HKS super sequential valve. You can use a recirculating outlet on it, but it won't be as loud. The HKS are really good quality adjustable units, but expensive. As above, why would you want to though? Very chav IMHO.

[Ruffiano]

http://www.youtube.com/watch?v=iDW71bm4C8Q

you can hear mine pretty well, i have scared quite a few people that were walking down the street, all mine is is a forge DV that isn't re-circulating since i don't have a stock inlet hose.

[fish]

Why on earth would you want your quality automobile to sound like it´s got a cold? Thos ricer dumps soud rally chavtastic to me... If you want some dump nois, shove a cone filter on it. It wont be as loud, but you get some nois and if you run a bit of boost with the 26/27 it will sound pretty cool. I had a 26/27 on my inca orange S2 and ran 1,9bar of boost with a dahlbäck kit and it sounded pretty cool...

[popdemonic]

I had HKS SSQV on my car few years ago.It's sequential with small and big valve inside.No stalled engine on MAF engine on UrS6 like you will experience

on any other BOVs.Beware of fake HKS since there will be a ton of them on ebay.Anyway,you might have fun with with them for a few months and started

to annoy you afterward.

[Deception]

Thanks guys. I wasn't ware that a BOV would mess with the engine.
So what makes the HKS SSQV compatible with the AAN MAF and the other BOVs not?

[Error404]

Already explained above.

It's not a good idea to fit an atmospheric BOV to your car unless you are running an after market ECU, the standard motronic system is MAF based and if you dump to atmosphere the car over fuels when you change gear and you will get bore wash etc, not good.

Any valve you use needs to recirculate the bypassed air back into the intake track. If you use an atmo BOV whenever you lift off or change gear the MAF has already "told" the ECU to fuel for that air mass, which is no longer in the intake track, hence it overfuels. HTH

[Deception]

Already explained above.



Any valve you use needs to recirculate the bypassed air back into the intake track. If you use an atmo BOV whenever you lift off or change gear the MAF has already "told" the ECU to fuel for that air mass, which is no longer in the intake track, hence it overfuels. HTH

OK, that explains quite a bit. This may be a stupid question but are there any loud recirculating valves?

[driftin jo]

If you really must fit one then my advice is remove the throttle damper, this will allow the idle switch to be activated as soon as you shut the throttle, if the engine is above 2000 rpm when the switch is activated the ECU will turn off the injectors and thus will not over fuel any more.

Under 2000 rpm lift off you will still get over furling but obviously this will not be as bad as lifting off under full boost at 5000 rpm +.

With the damper fitted as standard it can take 1-2 seconds after you lift off for the switch to click.

[QuattroFever]

I see your quite new and not meaning to sound patronising. If you know already ignore this.

A turbocharged car forces air into the engine creating positive pressure in the whole inlet. When you lift off the vacuum the engine makes between it and the throttle body pulls the piston/diaphragm back on the dump valve/bov/tbv releasing the excess pressure that still remains in the intake.
It is this release of pressure that makes that woosh sound you're talking about. So it's not whether you can can get a valve that makes the noise as by the nature of what they do they all make that noise depending how you have your intake set up.

You can make the standard one noisy if you get creative

[rs2coupe]

Try this..... Perfect!

http://www.ebay.co.uk/itm/SABRE-EDV-...item4ab59d634b

I shouldn't be surprised at the **** people can buy these days