how is this chatter noise acheived
02 December 2011, 11:06 PM
#32
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03 December 2011, 02:57 PM
#35
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Out of the 5 turbo cars i've owned the only one that i've had any chatter with is my current Turbo 2000.
Had a PiperX induction kit when i bought it and was fairly loud. Replaced it with a Blitz LM from my old WRX and it was louder and deeper, so was the exhaust. Then last week i got a Blitz Sonic Power at a bargain price, fitted that and the chatter's so quiet now you can't hear it at all unless you really give it some.
Had a PiperX induction kit when i bought it and was fairly loud. Replaced it with a Blitz LM from my old WRX and it was louder and deeper, so was the exhaust. Then last week i got a Blitz Sonic Power at a bargain price, fitted that and the chatter's so quiet now you can't hear it at all unless you really give it some.
Last edited by *_Ste_*; 03 December 2011 at 03:00 PM.
03 December 2011, 04:05 PM
#36
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My STI7 at 1.5 with TD05 18G, FMIC and K&N sounded mental, as did my 400bhp Evo6
http://www.youtube.com/watch?v=30wfzrt1y1M
http://www.youtube.com/watch?v=30wfzrt1y1M
03 December 2011, 04:24 PM
#38
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Must be other factors too though based on my previous cars...
Escort RS Turbo: standard airbox then a K&N 57i, no chatter with either
2WD Sapphire Cosworth: PiperX induction kit, no chatter
MR2 GTS: standard airbox, no chatter
MY94 WRX: Blitz LM, no chatter
however, after fitting the same filter to my Turbo 2000 the chatter was as loud as the BOV, if not louder
Escort RS Turbo: standard airbox then a K&N 57i, no chatter with either
2WD Sapphire Cosworth: PiperX induction kit, no chatter
MR2 GTS: standard airbox, no chatter
MY94 WRX: Blitz LM, no chatter
however, after fitting the same filter to my Turbo 2000 the chatter was as loud as the BOV, if not louder
03 December 2011, 04:37 PM
#39
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It's the opn cone and blanked off DV, the pressure coming back through the Cone is increased because there is no other Vent for the pressure to escape through. The cone just acts as an amplifier 
Get's even better with a FMIC.
Get's even better with a FMIC.
03 December 2011, 04:47 PM
#40
The dump valve must be blocked off. This stops the escape route for the air so it has to go back towards the turbo.
As above, the large cone is an amplifier.
The best I've ever heard was on a pals 550bhp saph. His turbo was enormous !! I think the larger the turbo the louder and higher pitch the chatter.
Another pal wanted his little 1.8T golf to chatter. I blocked his DV and fitted a KnN filter. The chatter was there but very quiet. He then decided to go with a VTA DV.
As above, the large cone is an amplifier.
The best I've ever heard was on a pals 550bhp saph. His turbo was enormous !! I think the larger the turbo the louder and higher pitch the chatter.
Another pal wanted his little 1.8T golf to chatter. I blocked his DV and fitted a KnN filter. The chatter was there but very quiet. He then decided to go with a VTA DV.
04 December 2011, 04:12 PM
#41
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http://youtu.be/OtMpiV-04VY
Turbo 2000 with Blitz Sonic Power filter, Forge BOV, tubular manifold
Last edited by *_Ste_*; 04 December 2011 at 04:14 PM.
04 December 2011, 06:39 PM
#42
Here is a vid of mine that I filmed today. Camera man skills are pretty poor but the chatter can be heard.
http://m.youtube.com/?ytsession=DYxa...?v=1r38klQDqaY
Click the link below to see my spec.
http://m.youtube.com/?ytsession=DYxa...?v=1r38klQDqaY
Click the link below to see my spec.
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