Thread: SC Cam Question
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Flieger Flieger is offline
Max Sluiter
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Join Date: Mar 2006
Location: So Cal
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In a bit of a tangent, not specifically applied to Turbos:

What is the "lobe center"? Is "lobe center" the time that the valve is at maxiumum lift?

I hear that early 911S, RS, RSR, etc cams with high overlap and lift have "narrow lobe centers".

If a cam has a lot of lift, would this mean that the valve needs to start opening earlier and spends more of its time off the seat? Are high overlap S and RSR cams stressing the valves thermally by not allowing as much cool down time per combustion cycle?
1971 chassis, 2.7RS spec MFI engine, suspension mods, lightened

Suspension by Rebel Racing, Serviced by TLG Auto, Brakes by PMB Performance
Old 07-20-2008, 08:30 PM
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