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Old 06-20-2001, 01:10 PM   #1
Cosworth
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Default WRX Vibration noise at 2000 rpm and WOT?

I noticed an odd noise/vibration that appears if i am just putting along in a gear at a speed where my RPMs are at 1800-2000 (say 4th gear at ~35 to 40 MPH). at this point, if i put the pedal to the floor (WOT), it sounds like there is some shuddering happening in the engine bay. is the turbo doing something weird here? the noise goes away as the needle passes ~2200 RPMs. Any thoughts here?
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Old 06-20-2001, 03:32 PM   #2
Xio
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At 2000 rpms you are probably bogging the engine going to WOT. I tend to stay light on the go pedal until 3000, then punch it and let it run free....

Remember at 2000 rpms you have very little power. Wait till 3000, the EJ20 motor has NO problem producing power then (Boost! ). You may have to readjust your driving style a bit to keep it up in the powerband.

Last edited by Xio; 06-20-2001 at 03:40 PM.
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Old 06-20-2001, 08:31 PM   #3
Cosworth
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I suppose she was bogging, but it was making some really bad noises... i suppose it was to be expected. has anyone else tried this and heard the same loud bogging noises?
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Old 06-20-2001, 11:14 PM   #4
Conduit
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Yes =) Try putting it in fifth at about 20 and see if that feels the same =).
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Old 06-21-2001, 02:39 AM   #5
Cosworth
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WEll, it was not the typical grumpling noise that i heard, but what sounded like some weird turbo noise in addition to it...
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