Factory ST205 JDM boost fluctuating

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Factory ST205 JDM boost fluctuating

Postby sergei » Thu Jul 05, 2007 12:10 pm

I have noticed something different about my ST205, when under boost (especially between 3000rpm and 4000rpm) I can hear fluctuations in intake noise. It sounds like this: "pssshhhssssshhhhssssshhhhsssshhhh". Is it normal?
I have CT20b in my ST165, but it is very steady (although I got 2 externals, and the turbo is steel, not ceramic like in my ST205).
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Postby RunningRich » Thu Jul 05, 2007 7:30 pm

My ST205 (steel turbine, 2.5" downpipe) makes whooshy noises. My ST165 never did.

You also sometimes hear flutters from the BOV.
Richard
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Postby Phothog » Thu Jul 05, 2007 7:32 pm

i also have that sound... under any sort of acc through that rpm range...
its louder at night as well... i'll say it was normal...

Chris.
1999 ST215W GT-T 325,000kms still going strong.
2000 M201G YRV Turbo, 1300cc little pocket rocket.
Need a Turbo Rebuilt or Upgraded... send me a email Chris @ Turbo.co.nz
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Postby sergei » Thu Jul 05, 2007 9:07 pm

Thanks guys, always paranoid about my cars...
I guess that noise is normal.
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