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Old 12-02-2012, 03:04 PM   #1
Scooby Newbie
Member#: 314134
Join Date: Mar 2012
Location: patriot IN
02 wrx
midnight black

Default 02 wrx turbo spool noise screech after boost

About two weeks ago on my way to work I was shifting into 5th at around 4500-5000 rpm. Coming out of boost I hear a screech from the turbo. Its not very loud. I was told the turbo is an sti turbo the previous owner had the turbo replaced about 3 months before I bought the car. The car also came with a 3 inch down pipe, full exhaust and intake. I have since then I upgraded to a silicone turbo inlet and hard inter cooler piping. I can see the turbo is newer but still looks small to me. Yesterday on my way to work the car not yet wormed up shifting into 5th at 5000 rpm I here the noise again. I have only herd the noise twice. The car 02 wrx
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Old 12-02-2012, 03:07 PM   #2
Scooby Specialist
Member#: 316415
Join Date: Apr 2012
Location: Elk Grove, CA
2006 WRX


Stop driving your car until its at operating temps first of alll.
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Old 12-02-2012, 04:04 PM   #3
Scooby Newbie
Member#: 301136
Join Date: Nov 2011

You seriously rev to 5K RPM before your car is warmed up? Good luck with that...
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Old 12-02-2012, 04:07 PM   #4
Scooby Specialist
Member#: 226864
Join Date: Oct 2009
Location: Southern NJ

Stay under 3k rpm until the car is warmed up.

Also, did you check for shaft play on that turbo before you installed it? You got everything tuned right?
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Old 12-03-2012, 10:52 PM   #5
Scooby Specialist
Member#: 316107
Join Date: Apr 2012
Chapter/Region: NESIC
Location: Andover mass
2002 Wrx sportwagon
Rally blue


My vote is stock td04 and you sucked cat from your uppipe into it
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Old 12-04-2012, 06:25 PM   #6
Scooby Guru
Member#: 149262
Join Date: May 2007
Chapter/Region: MWSOC
Location: Grand Rapids MI
03WR rallycarFXTleg


Recheck your connections.
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