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Originally Posted by 987dds
At what RPM does the Vario Cam kick in? I had an S2000 and at 6k I got a swift kick in the butt and I knew when the cam profile changed. My car is still in the break-in so I haven't exceeded 4k. Is it a dramatic change?
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Hi,
The VarioCam in your Car is VarioCam Plus, this is a viscous controlled system, rather than the Solenoid Operated one in the 1st Gen VarioCam which is essentially On/Off at specific RPMs. As such, VarioCam Plus is continuously variable through a 40° Range. In addition, VarioCam Plus will also vary the Valve Lift.
While it does do a specific job, due to it's continuous variability, I doubt you will actually feel it. Any noticeable increase in RPM dependent Power is most likely due to changes in Maps (Ignition Timing and Injector changes) by the ECU (
DME in Porsche Parlance). VarioCam Plus is mainly to allow for lower emissions and better torque at low RPMs while preserving the Power in the Upper Ranges. Hope this helps...
Happy Motoring!... Jim'99