1992 mercedes 300ce
 

i have 2 mercedes 300ce cars i have converted to 5 speed manuals. on one i removed the fuel injection and ignition and refitted a 48mm idf weber and adapted a vacuum advanced 1975 ford grenada distributor with a gmc modual. the car runs AWESOME. porsche fast. i have a question regarding cam advance. i am setting up a microswitch to activate this. is this circuit normally open? and at what rpm does it activate. thanks! this is the dual cam m104 engine


i did find out the circuit is normally open, attached the microswitch and set it to activate at 2000 rpm. im thinking this is a safe estimate on rpm

I don't remember the exact numbers but it goes something like this.

Crank-off
1200rpm-on
4700rpm -off

Exact RPM ranges are in the FSM, however it's also based on engine load IIRC... won't be easy to make this work well.

:blink:

thanks! the car runs great now. just curios if this will make a difference. i can fabricate a shaped cam to activate then deactivate at 4700 rpm.

the easy stuff is just that....easy