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well if you want to hear your bov, you need to vent it, but when venting your bov your car will backfire, but if you like that and dont want to risk getting fined by the cops leave it as is. as for your exhaust, put a full 3 inch catback with high flow cat and front pipes will remove that restrictiveness of your stnd exhaust. plus id suggest getting a lager FMIC and get some pods in a airbox with some cold air ducting. will make the car feel sweeter to drive

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well the bov should vent when you lift your foot after you give it a decent amount of throttle when sitting on the spot. if it doesn't then it may be blocked. if you take the bov off you should be able to push the plunger up with your fingers with a little bit of force.

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Andy, you ask a lot of the same questions.

I have some for you.

1.) when you are driving hard and you are boosting, what sound do you hear in between gear changes?

2.) you have HKS SSQV bov yes?

Like this one..

hks_super_bov3.jpg

See on the back where there is a brass fitting.. just below that, right in the middle of the bov, there is an adjustment screw.

If you adjust that ANTI CLOCKWISE (turning it to the left), it will LOOSEN the spring inside.

This will make it easier for the bov to open when you change gears or take your foot off the pedal. So you should be able to hear it more.

BUT, if you loosen it too much, the car might STALL as it is leaking too much air.

ALSO, you will NOT hear the noise by just revving your engine in neutral. Because it does not make boost in neutral.

Only when you are driving.

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well the bov should vent when you lift your foot after you give it a decent amount of throttle when sitting on the spot. if it doesn't then it may be blocked. if you take the bov off you should be able to push the plunger up with your fingers with a little bit of force.

yes, i hear a sound when im changing gear with a hard start....im just new to my car...im just curious if my BOV is really working...yes, that HKS is same with mine...i have the twins...thanx, i just wonder why my friend have a 300zx and his BOV sounds loud even when he only revs in the neutral....just wondering thanx guys...

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