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Went about taking my cat out last night, turned out someone had gutted it out before me  so took out the middle box, now my exhaust is like this..
Gutted out cat, no middle box, gutted out backbox.
Now when i change gear.... Coooooooo.. I despise this noise The car isnt even loud which is what i wanted ha, i was thinking if i opened up the backbox again and welded a pipe inside instead of it being a hollow box will it get rid of the coo noise and make it a bit louder? Thanks 
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you must have a t2 or gt15 turbo in your motor then sadly you cant really get rid of this noise if you have a straight pipe the vag tdis make it proper loud it does get on your nervs after a wile lol thankfully i have the k14 so dont have this problem .
your only option is to fit a silencer somewhere or straight pipe it and fit the cat again i believe this lessins the cooooo noise.
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Yeah its a t2, think ill just leave it, never heard a 306 coo before
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(09-02-2013, 01:26 PM)Bananalad Wrote: Yeah its a t2, think ill just leave it, never heard a 306 coo before
yeah for some reason not to many have the t2 turbo the higher up the rev range you change gear the less you hear it or just change gear really quickly so that the turbo doesnt have a chance to make the noise lol.
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I've never had a cooo kinda noise. And I have a tube from the turbo to a gutted back box.
Is it a turbo noise or exhaust noise? Just out of interest
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(09-02-2013, 01:33 PM)4WayDiablo Wrote: I've never had a cooo kinda noise. And I have a tube from the turbo to a gutted back box.
Is it a turbo noise or exhaust noise? Just out of interest
http://www.youtube.com/watch?v=IndzaWrke...Ag&index=1
think this could be the noise hes talking about possibly.
this is the vag coooo loud as heck
http://www.youtube.com/watch?v=AySkvbp1zNQ
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Yep thats the noise, its just not as loud as the vag coo..
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09-02-2013, 01:49 PM
(This post was last modified: 09-02-2013, 01:49 PM by 4WayDiablo.)
Ah sweet mine makes this noise :-) more of a cha cha cha
www.youtube.com/watch?v=6jzUFdUc8nY
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(09-02-2013, 01:49 PM)4WayDiablo Wrote: Ah sweet mine makes this noise :-) more of a cha cha cha
www.youtube.com/watch?v=6jzUFdUc8nY
like the cha cha cha noise unfortunately you dont get it without running big boost 
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That was only running 23ish psi though? Defilter helps I guess
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It's called turbo chat. My mate had it on his bora. Sounds Fuckin ace. Straight through pipe from the turbo.
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(09-02-2013, 04:28 PM)kingy Wrote: It's called turbo chat. My mate had it on his bora. Sounds Fuckin ace. Straight through pipe from the turbo.
Its not turbo/waste gate chatter, its called compressor stall
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(09-02-2013, 06:05 PM)4WayDiablo Wrote: (09-02-2013, 04:28 PM)kingy Wrote: It's called turbo chat. My mate had it on his bora. Sounds Fuckin ace. Straight through pipe from the turbo.
Its not turbo/waste gate chatter, its called compressor stall
He didn't say it was waste gate chatter, he said it was turbo chat. Stop being so pedantic.
Anyways.. it happens when the inertia of the rotating assembly is stalled by air pressure, the noise isn't that healthy as 306 turbos seem to blow seals once they start making this noise.
Can happen to any turbo though, not specifically the Garretts.
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09-02-2013, 08:11 PM
(This post was last modified: 09-02-2013, 08:15 PM by kingy.)
(09-02-2013, 08:08 PM)cwspellowe Wrote: (09-02-2013, 06:05 PM)4WayDiablo Wrote: (09-02-2013, 04:28 PM)kingy Wrote: It's called turbo chat. My mate had it on his bora. Sounds Fuckin ace. Straight through pipe from the turbo.
Its not turbo/waste gate chatter, its called compressor stall
He didn't say it was waste gate chatter, he said it was turbo chat. Stop being so pedantic.
Anyways.. it happens when the inertia of the rotating assembly is stalled by air pressure, the noise isn't that healthy as 306 turbos seem to blow seals once they start making this noise.
Can happen to any turbo though, not specifically the Garretts. yeah phil, feck with me and you feck with the pellow. 
still, sounded the nuts on a bora. was thinking of doing it to my mrs tdi150 when she was asleep but i dont think i could get away with it lol.
tryed many things whilst shes been asleep and non of them have worked.
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I love that noise why do you want rid of it? Mines weird mines sshhhhhh choo choo choo like a trian haha and its insane ly loud 
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10-02-2013, 12:30 PM
(This post was last modified: 10-02-2013, 12:31 PM by Tom.)
I always thought it was related to vnt's :/ Never seen any other turbos make the noise.
Skip to 10:40
http://www.youtube.com/watch?v=scJvZasyv6w
Doesnt even own a 306.
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10-02-2013, 03:58 PM
(This post was last modified: 10-02-2013, 04:02 PM by Dicky.)
(10-02-2013, 12:30 PM)Tom Wrote: I always thought it was related to vnt's :/ Never seen any other turbos make the noise.
Skip to 10:40
http://www.youtube.com/watch?v=scJvZasyv6w isnt just filter chatter?
any VAG shit that makes that sound f*cking annoys me, brghhhhhhhhhhhh COOOOO
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Filter chatter? Did you just make that up? lol
Doesnt even own a 306.
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(10-02-2013, 04:00 PM)Tom Wrote: Filter chatter? Did you just make that up? lol Meant like amplifying the sound through the filter
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Its the same sound though, if the camera was at the back that noise would of been coming out there? It was just an example of the noise tbh lol
Doesnt even own a 306.
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I want mine to go wha cha cha cha cha instead of the coooooooooooooooo I heard it make the wha cha cha one day though so i know it can do it
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(09-02-2013, 01:36 PM)jpderv Wrote: this is the vag coooo loud as heck
http://www.youtube.com/watch?v=AySkvbp1zNQ
That sounds f*cking awful!
Mine never did that with a decat! Which is almost straight through as theres only a cat then backbox on them, none of this mid box shite like HDis. 
Im curious though, how are people making that noise? I assume it doesn't happen when just driving normally or I'd have heard it before somewhere! I've heard the 'flutter' on petrol VAGs but I think thats just wastegate chatter (which cant happen on VNT as theres no wastegate) but I'd never heard that 'coo' lol.
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Mine does it if your on hard throttle and change gear or w.e as its spooling(2.3k) ish
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If yous like vag's making that noise, you'd love n.ireland, full of derv golfs, boras, leons, passats all with straight throughs
Though over here its called poooowing not cooooing
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My 3-0 coooooo'd on the big k14 and it had the center box! its to do with emp hence vnts are better at it, you need lots of fuel, no boost creep and lift the foot at the right time. Mine also made the dump valvey sound on the wee k03 but i think thats bad for the turbo so try drive round it.
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My wee gt15 did the "chatter" thing.
It was running 30psi + at the time to do that tho.
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I like.
Doesnt even own a 306.
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Mines got this noise aswell but its ever so faint and its just more of a coo not coooooooooo  i love it, makes me smile
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