New dump valve making fuuny noise???
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New dump valve making fuuny noise???
I fitted a atmos dump valve to my car(1995 wrx) last week,piston type. It is not making the whooosh noise. Its like a weird fluttering. If i boot it the noise is slightly more normal. There is an adjuster screw i have tried playing with it but its making almost no difference .............ANY IDEAS?????. Its plumbed in on the same lines as the standard recirc. The valve is not new but in very good condition.
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Flutter is normally wastegate/turbo chatter
This shouldn't affect the boost noise unless you have a boost leak i.e not plumbed it in right
The BOV only really does anything when you let off the revs so again shouldn't affect boost.
Might just be the noise this valve makes?
This shouldn't affect the boost noise unless you have a boost leak i.e not plumbed it in right
The BOV only really does anything when you let off the revs so again shouldn't affect boost.
Might just be the noise this valve makes?
#7
by adjusting the spring tighter you will reqiure more boost pressure to lift the piston off its seat when dumping air into the atmosphere. If you slacken the spring off you have the opposite effect - less pressure required to lift the spring off the seat. The tightness of the spring also affects idle.
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#11
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dunno what make its a piston type atmos, cleaned it out and it sounds slightly better. Most of the noise is from the air filter,(sounds weird but the flutter is coming from it).Its a pipercross induction kit with the resonator removed.going to get a BOV. Any recommendations?
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