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goldfish	posted on 20th Oct 04 at 13:05
	quote: Originally posted by Nismo anal sex with young boys is the way forward. wrong forum
Nismo	posted on 20th Oct 04 at 12:05
	external wastegate is the way forward.
goldfish	posted on 20th Oct 04 at 11:43
	mine used to move as soon as the cable was touched. if it did not close then you'd be losing air.
timrud_	posted on 20th Oct 04 at 11:16
	Pop your bonnet, pull the throttle cable and watch the DV then!
goldfish	posted on 20th Oct 04 at 10:27
	quote: Originally posted by timrud_ That is because there is not enough pressure to open the DV, so it comes back out where it has come from (like having no DV), hence the slight flutter. the DV moves when you lift of because of the vacum :boggle:
ajscorsa	posted on 20th Oct 04 at 09:56
	my m8s galanza v makes the fluttering noise on high boost sounds amazing its the standard dump valve tho so dunno how its done
timrud_	posted on 20th Oct 04 at 09:45
	That is because there is not enough pressure to open the DV, so it comes back out where it has come from (like having no DV), hence the slight flutter.
goldfish	posted on 20th Oct 04 at 08:26
	quote: Originally posted by CRB 553 just heard this from a few people on turbosport.co.uk 'there is no such thing as wastegate chatter - the sound is the charge air 'bouncing off' the turbo blades when you close the throttle.' -is this the fluttering noise ive heard that i assumed was just the dump valve ? And also what the (sexual) noise when an evo is about to launch, is that just the limiter or is it a wastegate thing ? [Edited on 19-10-2004 by CRB 553] you do get fluttering of the VTA DV if your on partial throttle and lift off slowly. a DV noise sounds like a sneeze
corb	posted on 20th Oct 04 at 00:04
	Shinee was telling me that the chatter was the sound of air being forced back through the wastegate, and the wastegate opening/closing VERY fast. i think.
timrud_	posted on 19th Oct 04 at 23:28
	CRB... the "chatter" noise is the air exitnig the system the same way it came in, but backwards LOL So it echos off the blades. Which is why a dump valve does help stop lag a tiny tiny bit, as it keeps the blades going the same way (compared to the air forcing them backwards, and causing I think compressor stall, i think??) Still I love the sound of chatter, I will NEVER put a dump valve on my car!
CRB 553	posted on 19th Oct 04 at 16:49
	yeh kerry thats ur blow off valve doin its woosh thing but the noise they refer to is b4 the blow off valve goes off.
AK	posted on 19th Oct 04 at 16:48
	the chattering with BOV's is just when you lift off gentle.... the air farts out rather than surges out
Kerry	posted on 19th Oct 04 at 16:42
	my noise is due to me removing the recirc valve and fitting a blow off valve. i was under impression it is was just compressed air
Budgey	posted on 19th Oct 04 at 16:10
	compressor surge?
CRB 553	posted on 19th Oct 04 at 15:50
	just heard this from a few people on turbosport.co.uk 'there is no such thing as wastegate chatter - the sound is the charge air 'bouncing off' the turbo blades when you close the throttle.' -is this the fluttering noise ive heard that i assumed was just the dump valve ? And also what the (sexual) noise when an evo is about to launch, is that just the limiter or is it a wastegate thing ? [Edited on 19-10-2004 by CRB 553]