Thanks Dan and others, you have provided some really valuable information on the use of MS engine control in the Buick Turbo Engine in this chain.
I have a project for upgrading the carbed turbo engine of the '81 Regal Sport Coupe to a sfi and direct ingnition system and use the MS3 Engine Control Unit for it. Since I use a timing cover (1988 FWD) with a gerotor oil pump with Buick’s original cam and crank Hall sensors I would like to know the following:
FWD '88 Cam sensor is a magnet type with three wire Hall sensor and crank sensor same as in turbo engine ('84-87). According to the book (1992 shop manual) these originally have a 10V input voltage from the Ingnition Module. The '88 crank sensor also has two reluctor wheels, the inner with three narrow slots and the outer with 18 teeth. Can the MS3 utilize these reluctor wheels and sensor so that control can be made sequential on cylinder-specific ignition coils (i.e. LS coils)? Is there a need for additional buffer/amplifier?
The engine becomes otherwise exotic, I use a '88 cylinder heads and intake manifold, although the cylinder bank line of the '88 FWD engine is a bit different, they can be fitted to an older engine. They have shorter and more direct intake and exhaust runners and do not have heat crossover ducts. I also get utilized from donor motor roller lifters and the intake manifold seems to be well flowing. The camshaft for the older model needs to be cut and modified at the front to fit the FWD manifold, no HP camshafts are available for the newer model. Exhaust manifolds also need to be custom made because exhaust ports are deeper in the cylinder hards, closer to the exhaust valves.
There are many things to do here, but I do this out of interest and because a suitable donor engine happens to be available. The most acute issue now is that related to MS3 and cam and crank sensors. I would appreciate it if I could get a comment on this from you experts.
Thanks,
Pauli
