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

StuartBJ · #1 01-07-2011, 09:06 AM

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

whipplem104 · #2 01-07-2011, 09:18 AM

It is a simple on/off. 12vlts and ground.

StuartBJ · #3 01-07-2011, 09:23 AM

Quote:

Originally Posted by whipplem104

It is a simple on/off. 12vlts and ground.

Is that to a pump or do you mean straight to the cam gear? The reason I ask is that some systems are elctro magnetic....well I`m told that

Roncallo · #4 01-07-2011, 05:02 PM

Quote:

Originally Posted by StuartBJ

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

Anyone ever try leaving it on for increased torque at all times. How would it run in the 1/4 mile with a bypass switch in the cockpit??