Weird DV noise

[John_Hudson]

Ive recently upgraded my IC to a FMIC and ive only had this noise since then.  

Anyhoo as im approaching neutral / positive boost and i let off i hear a patter from my Dump valve like its letting off intermittently but in rapid succession ..its hard to explain the noise but im not sure why its doing it, i have the HKS SSQ DV could it possibly be going down the drain?

cheers

John

[strange_days_uk]

sounds normal

the valve opens, then pressure is - so closes again, the pressure builds back up so opens, then down etc...

[John_Hudson]

neh, i cant be explaining myself properly. The valve seems to sounds and open before positive pressure has been achieved if i let off early.  Its not a single SWOOOSH noise like normal its more of a ppshh ppshh ppshh ppshh..

im sitting here trying to vocally recreate the noises and trying to put in to words and it isnt working well...




And yes i do sound like a


:Giggle

[rx7veilside]

if its sounds like a horse blowing thru its nostrils then its the dump valve not opening properly and the air flowing back over the turbo

[bally]

i had that noise changed my dumpvalve seems to have gone all i can now here is my bloody manifold blowin lol