M120 V12 (Kit Car) - Variable Intake Cam ???? - PeachParts Mercedes-Benz Forum

01-07-2011, 09:06 AM

StuartBJ

Registered User

Join Date: Mar 2010

Posts: 65

Quote:

Originally Posted by Roncallo

I don't know the exact details but its not exactly variable. The exhaust cam only advances a fixed amount at ~2100 RPM then retards back to base at some higher RPM. So its basically an on off switch triggered at set RPM values.

OFF <2100 rpm is for smooth idling,
ON 2100>4700 for increased torque
OFF at 4700 for volumetric efficiency

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