Pulsar Fluttering Valve

Exe_GT

Exe_GT

Member +
Wondering if anyone can help.

I currently have a Bailey's dump valve which works fine. I saw at a race day once a Pulsar that had a valve that had a Fluttering sound. Does anyone know what this might have been?

Thanks for any reply's

Karl
 
lingl9z

lingl9z

Member +
Yeah as said just block the hole and vac hose up =] or i think one of the blitz dv's make a simular sound.
 
Blak_Mamber

Blak_Mamber

Member +
haha yeah, no BOV mate. Thats the chattering sound of the turbo....

lol @ chipmunk.. mine does sound like that sometimes, & i run a Blitz BOV too, but i think because im running the filter in the front bumper, it causes it to chatter. Mainly happens when i built boost up from low revs & release.... sounds great :)
 
K

Kennedy

Member +
It'll flutter depending on how much boost youve built and how you come on/off the throttle and at what point your bov is set to dump it it. I ran an ssqv as tight as it would go.
 
Exe_GT

Exe_GT

Member +
Yeah don't really get any at the moment. Got a air filter at the front,fmic and different turbo. I will try and find a sound clip of the one on that Pulsar becaus i know it had a specific valve fitted to it.
 
Nippon

Nippon

Member +
Get a harder spring for your DV. Then it will only open on high boost levels. The rest of the time it will chatter.
 
sanchez

sanchez

Member +
Yeah my mate had a pulsar with a hks Bov on it witch sounded awsome but when he had his turbo built by owen developments with a 360' bearing it used to flutter like mad.
Could that be anything to do with it?
 
S

starletburkie

Member +
iv a sard r2d2 bov, when i build up boost from low rpm and let it off it gives a flutter and blow off, its the way i have it adjusted. i have the standard efi pipe with a hks filter, sounds mint!
 
M

monka

Member +
Blak_Mamber said:
haha yeah, no BOV mate. Thats the chattering sound of the turbo....

lol @ chipmunk.. mine does sound like that sometimes, & i run a Blitz BOV too, but i think because im running the filter in the front bumper, it causes it to chatter. Mainly happens when i built boost up from low revs & release.... sounds great :)
Click to expand...

you running a tmic?
 
C

callumGT

Member +
It does sound cool butisnt it right that its stalling the turbo and the air spins back through causing the turbo to spin backwards?
which is bad in the long run
 
M

monka

Member +
just remember that when you posted pictures of the greddy type s ya had a topmount? i think anyway.

when i went to fit it i noticed in my tmic pipe (cusco jobby) the hole from the main pipe to the dump pipe was restricted, and i ended up with the same noise no matter what, tried it on a front mount with the dv by nearer the throttle body and it sounded lovely

edit ignore that, it was a different person i was thinking of with the greddy type s.

either way still the same situ, i have fitted 3 dump valves, hks, blitz and a greddy type s, all sounded basically the same, and was caused by a restriction,
 
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