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- - fluttering noise (https://www.homemadeturbo.com/forced-induction-7/fluttering-noise-12492/)

d16y8turbo

11-26-2003 05:55 PM

fluttering noise

I just got a 03' Mazdaspeed protoge. Its got about 300 miles on it. It has no BOV and evey time I shift there is a sorta fluttering sound, I am wondering if this is the turbo back spooling or what?

Also after I shut the engine off there is this ping noise, I was thinking this was just things cooling off but I wasnt sure.

Let me know what you guys think,

-Aidan

88crxSi

11-26-2003 06:12 PM

Re:fluttering noise

i'd get a bov in there.. but might void warranty.. ??

Turbo90Accord4DR

11-26-2003 08:37 PM

Re:fluttering noise

its called compressor surge, its a result of no BOV.

Johnyquest

11-26-2003 10:26 PM

Re:fluttering noise

get a BOV. that's the noise. The ping is the thing cooling down, it will go away once the car is older....

hotrex

11-29-2003 03:37 PM

Re:fluttering noise

ger a rfl

Turbo90Accord4DR

11-30-2003 06:01 AM

Re:fluttering noise

Quote:

Originally Posted by hotrex

ger a rfl

AKA Turbo XS RFL (RFL = REALLY ------- LOUD!)

tranceminister

11-30-2003 07:01 AM

Re:fluttering noise

You sure yours doesn't have a blowoff valve? My buddy has one of those Mazda Speeds and his has a bov. It's just a little black plastic thing, so thats probably what your hearing. It's not very loud either but it does make a fluttering sound.

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