blow off valve.....

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Jul 25, 2004 | 10:50 AM

mj12b

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Joined: Jul 2004

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blow off valve.....

hi,
i really want to get blow off valve for my ride.... i just love that sound.... however, some peeps told me that it's not really recommended cuz the car looses boost or something... is that true? if it is then, is there something can be done to offset that?
thanks guys~!

Jul 25, 2004 | 11:15 AM

shadyraven

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Zero performance gains with a BV on the 1.8T. If it's only the noise you want, install this...

<ul><li><a href="http://www.takakaira.com/accessories/nightpager/nightpager.html">what-na-be BV noise maker gizmo...</a></li></ul>

Jul 25, 2004 | 03:25 PM

SilverTQ

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Joined: May 2003

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i also read somewhere using a bov in a 1.8t will create a rich condition, and damage ur cats

and is just not good for overall performance and reliablity. I have to admit I kinda like pshhhh sound (when u actually have a turbo). But dont want to sacrafice perfomance and realibilty for a sound.

Jul 25, 2004 | 03:26 PM

Tsle

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From: Washington, DC

The reason people told you that is this: Our cars are designed as a closed-loop system (see inside)

In a closed loop system, the by-pass valve, which we have instead of a blow-off valve, releases the pressurized air into the intake tract, rather than out into the atmosphere. If you install a blow-off valve in it's place, the car assumes that air is being placed back into the intake that is actually being blown off into the atmosphere, and can have stalling problems, check engine lights, etc. Some people have reported blow-off valves working fine, but I wouldn't do it. If you want to have <a href="http://people.brandeis.edu/~tsle/intake.wav">this</a> sound, get an intake like the Boosted Tech one (but not the Evo), or wait for the Carbonio intake. That sound file is my Boosted Tech intake with the stock bypass valve.