Factory BOV Sound?

[Macca-RX7]

Hi, i came across a video on youtube of a guy who has done something to make his factory bov make a sound? Anyone else heard of this / done this? Im interested in doing it

http://www.youtube.com/watch?v=IwKVEPGvz0Q

[G@NDY]

Yes it simples. Just unplug it from the airbox

[Macca-RX7]

I\'ll need to blank off the bit on air box then wouldn\'t I?

[G@NDY]

Ive got a 50/50 here as its been a while since I had an FD, but I think its the one that ive circled, the other is a charge relief valve. HTH

[G@NDY]

Yep, ive seen people use spark plugs, batteries anything to just block the hole up matey.

[Macca-RX7]

Came across a diagram, the one you circled is the charge relief.
The one at the front is the air bypass valve

[neil_jdmr]

Yep the black one at the front is the air-bypass(bov) its the furthest forward one, If you vent it to air then it will give the whooosh but you also gain an annoying off boost whistle.

[Macca-RX7]

Ok done it this morning. There is air passing through the vented bit of the valve when on idle/no boost. Is this bad for the car with regard to air leaks / MAF sensors / fueling?

[G@NDY]

Lol, 50/50 and got the wrong one. No its fine like that, I ran my car like that for years matey.