Quote:
Originally Posted by sjf911
Going to sequential injection/ignition where the MS3 really shines requires adding a cam sensor which is not impossible DIY by modifying the air pump drive or the distributor but probably easiest done with Clewett's combined scavenge pump/cam sensor unit which is not cheap.
|
Almost every 1974-94 911 Turbo came with an air injection pulley & housing. You can add a hall-effect synch sensor for well under $100.
Example:
Using a mag pickup (ex-Electromotive TEC3r engine):
Mount the sensor to the housing perpendicular to the pulley. Drill & tap the pulley and install a ferrous bolt with a drop of blue Loctite. Adjust the gap by turning the bolt. Or make the sensor adjustable. Done. Easy.
And in a few weeks we'll have our new all-in-one Twin Trigger ready -- hall-effect crank (reference) and cam (synch) in one assembly, bolt onto any 1976-94 Turbo.