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996 Turbo / GT2 Turbo discussion on previous model 2000-2005 Porsche 911 Twin Turbo and 911 GT2.

guys, help me out here...

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Old Jul 14, 2003 | 10:31 AM
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guys, help me out here...
for a few weeks now I notice while highway driving at 60-65 mph I randomly have a sudden quick deccelleration (millisecond) -boost is fine . any idea what would cause this.
 
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Old Jul 14, 2003 | 10:51 AM
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Drbill, It's normal. It's the vario cam timing.
 
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Old Jul 14, 2003 | 11:11 AM
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Oak,

I think I experienced something similar on my Turbo. It seemed that in any gear on the highway, the car would "buck" for a split second at around 3,200 RPMS. Is this the variocam also? TIA.

Eric
 
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Old Jul 14, 2003 | 11:45 AM
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ESK, yes I notice it around +-3K RPM. The vario cam has an solenoid operated camshaft adjuster. The system basically adjusts the varying overlap timing along with valve lift.
 
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