high pitch whistling sound under boost / revving

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05-25-09, 02:47 PM

TurboMazdaSpeed

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high pitch whistling sound under boost / revving

ok so theres a shop near by whenever they build crazy 20bs they have the same whistling noise, and i love the sound of it, but NOBODY Knows what it is or where its comin from.. heres a video with a FC with the same noise, and one of the local FD's

http://www.youtube.com/watch?v=_j2jM...e=channel_page

http://www.youtube.com/watch?v=Nn9Ob...om=PL&index=12

now my question is..anybody know what causes that? I LOVE THE SOUND OF IT! haha.. and im buying another FC today with hybrid turbo / microtech etc. and would like it to make the same noises, going to be my daily while my 1JZ vvti FD swap gets finished.. sorry if this is in the wrong section, but this only happens with aftermarket single turbos from what i have seen

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05-25-09, 03:30 PM

SmogSUX

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It's the turbo..some turbos just have that loud whistle..

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05-25-09, 03:32 PM

mono4lamar

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I don't feel like watching the videos but I'll put money that it's the anti surge housing causing it. Not anything really new...

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05-25-09, 03:37 PM

Viking War Hammer

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nope, it's those inserts you can buy from autozone that install in your muffler tip.....

Sounds like those long tubes you swung around as a kid that made those funny whistling sounds..

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05-25-09, 05:46 PM

TurboMazdaSpeed

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Quote:

Originally Posted by mono4lamar

I don't feel like watching the videos but I'll put money that it's the anti surge housing causing it. Not anything really new...

its not from the anti surge housing.. not that kind of whistle

Quote:

Originally Posted by Viking War Hammer

nope, it's those inserts you can buy from autozone that install in your muffler tip.....

Sounds like those long tubes you swung around as a kid that made those funny whistling sounds..

yes that is exactly what it sounds like hah.. but no its not a muffler insert either.. its a mystery!

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05-25-09, 07:03 PM

TweakGames

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lol, wow I .... ... I want that ... lol. When you figure out what is causing it let us know please!

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05-25-09, 07:12 PM

TurboMazdaSpeed

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Quote:

Originally Posted by TweakGames

lol, wow I .... ... I want that ... lol. When you figure out what is causing it let us know please!

its the coolest sound.. you have to hear it in person to understand why i want to figure out how to make it happen haha. its super loud too, but yeah ill let you guys know if i findout. I think it was a small crack in the turbo aftermarket manifold once in this guys FC..

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05-25-09, 07:23 PM

AlexG13B

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lol wow

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05-30-09, 01:12 PM

TurboMazdaSpeed

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still trying to figure out wat makes the noise.. lol..picked up another TII today , so im hoping i find out soon. LOL, had to drive 4 hours each way and it had about 3% life left on the clutch......not even joking..

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06-07-09, 03:26 PM

#10

TurboMazdaSpeed

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ah found out finally.. its from a full RE-amemiya lightweight clutch setup

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Hooligan14 (11-04-21)

06-07-09, 04:54 PM

#11

tasty danish

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a clutch??? are you kidding?

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06-07-09, 06:08 PM

#12

TurboMazdaSpeed

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yeah some super super lightweight re-amemiya clutch / flywheel setup. the sound went away when they changed it to a os geiken twin plate setup

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06-07-09, 07:36 PM

#13

Gorilla RE

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Fail.

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06-08-09, 01:51 PM

#14

dean23

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that clutch must have had some issues if it were making that noise....

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06-10-09, 12:57 AM

#15

Ranzo

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No it is called the Amemiya "pee por" flywheel. Cusco makes his clutches I am pretty sure and somebody designs the flywheel for him to make that sound.

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06-10-09, 01:25 AM

#16

Frostycrowd

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that is stupid

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06-10-09, 06:29 AM

#17

KenSpeC

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oh yeah i heard about this clutch, it decreases the leading and trailing split and causes air to cavitate and cause the whistling sound as it passes thru the exhaust valves on the rotor housings...and then the crankshaft journals open

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06-10-09, 11:47 PM

#18

Stanello

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Quote:

Originally Posted by Viking War Hammer

nope, it's those inserts you can buy from autozone that install in your muffler tip.....

Sounds like those long tubes you swung around as a kid that made those funny whistling sounds..

Quoted for truth.

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06-11-09, 10:15 AM

#19

Trots*88TII-AE*

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it's a whistle tip!
"You wanna whoo whoooooo, it's that whoo whoo. Know what I'm sayin?"

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06-11-09, 11:18 AM

#20

Juiceh

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Quote:

Originally Posted by Viking War Hammer

nope, it's those inserts you can buy from autozone that install in your muffler tip.....

Sounds like those long tubes you swung around as a kid that made those funny whistling sounds..

Woooo Wooooooooooooooooooooooooooo!

Holla at your boy "Bub Rub" for your whistle tips! He'll hook a brotha up!!

Wooooo Woooooooooooooooooooooooooooooooo!

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06-12-09, 08:49 PM

#21

Ranzo

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Weirdos. It is the flywheel, an original Amemiya item. I have a video of a FC with three rotor triple turbo, and the flywheel

That car jingles when you push the clutch in whistles and roars when you rev and the fuel pump is buzzing as well.

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06-12-09, 09:15 PM

#22

TurboMazdaSpeed

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where can i get meself one of these flywheels lol.. i hear they are SUPER light

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Hooligan14 (11-04-21)

06-28-09, 02:47 PM

#23

Ranzo

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Had to revive this........lol Here is a You tube. Listen to the Amemiya car, it is the only one that makes the sound.

[url]http://www.youtube.com/watch?v=cihT6YA3M6o[url]

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06-28-09, 11:02 PM

#24

Chemical

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Yea I know some guy that has some amemiya stuff on his car and it makes the same noise..we figured it was the dolphin exhaust because the fc2000 makes the same noise, but a flywheel? bizarre..

http://www.youtube.com/watch?v=8mUvzD4LuK4