Xr6turbo Fluttering

[Tolgz]

adam, ive heard your car, no arguing its loud, but im assuming the power output an amount of boost your running, is the cause of such loud noise.

[jEtONiT]

yeh standard ones sound madd.. a mate of mine did a standstill and as he let go of throttle the "compressor surge" (hwich im pretty sure makes the flutter sound) went off its head.

What is a standstill

What noise are you talking about

a burnout in the spot.. noice is the cooler noise, the fluttering (tf tf tf)

[Deaks]

Block your Bov off if you want Flutter, simplest way of doing it really. Mines auto and I get flutter, but only when I want it not every five seconds. Ive heard many stories about the reason behind the noise, but it seems the bigger the cooler, the louder the noise, also the freer the intake the louder it is too, but that's due to a freed up intake being less restrictive for the out going flutter.

Believe what you will, but theres few better sounds than a turbo fluttering away on the crisp cold night.

[IH8TOADS]

xrtwpn.......if yours flutters so much, does this mean you have removed your BOV and simply have a pod filter???? I have done this before on previous car that's all.

[FPRXR-6]

The BOV doesn't make that flutter sound, it's the wastegate.

If you want that Flutter sound to be loud then remove the BOV and block the pipes.

[Goobz]

Its not the wastegate. Its the build up of pressure having nowhere to go when the butterfly is shut due to no/inadequate release of this pressure(BOV). It therefor bounces back and forward off the spinning compressor wheel causing it to surge. That is the noise you are hearing. It gets louder with reduced intake plumbing & larger/better cooler because there is less restriction.

As has been said, if you want you car to do it more, just pull the small sense line off the top of the bov and kink it over with a cable tie to stop any boost leaking out...

Chris

[saleen]

Seems like everyone has their own thoery, lol. I won't give mine.

[blueboost]

I have heard that as horsepower gets higher, which means more of this air preasure builds up, it can spin the impeller off the turbo,

this would not happen to a standed boost car,at 4-6psi, but I was told with bigger power it could do damage,

also remember the more youhere this the more lag you will get, because the air trying to return past the impeller is stopping its momentem.have a talk to your tunners, and they will explain it to you.

David

[bugster70]

I'm not gonna give my version of why it flutters, but I will say that my auto does it quite a bit since getting my Edit. In stock form I can say I rarely (if ever) heard the turbo/wastegate/BOV/whatever flutter, but with Edit it does it quite a lot when you lift off the throttle under boost. There's certainly no doubt as to what the sound is, definitely a turbocharged car!

[sixfan]

Mine flutters now, didn't used to it's a stock manual.

I haven't noticed any difference in the power though.