A few weeks ago I posted a question to see if anyone knew how to convert the 18R-C (RA40) to electronic ignition. I wanted to do this as the High Energy Ignition that electronic ignition can handle is far superior to the system that points can handle.
I have settled on a distributor from a Mitsubishi 2.0L L300 van (SF to SJ series) that ran from '86-'96. This unit is unique in that the Igniter box (normally bolted to firewall) is actually inside the distributor body itslef. This makes it easier to wire and hopefully more reliable.
The coil is from a a VN commodore but any HEI coil will do.
I have modified the L300 distributor by replacing the counterweight springs with those from the 18R-C dizzy. This is an attempt to retain the original advance curve.
You then have to take your L300 and 18R-C dizzy (I borrowed an 18R-c one from the wreckers) to a machine shop to have the dizzy body machined down and to have the shaft modified as the 18R-C dizzy shaft also runs the oil pump. $60 is what I was charged. Be sure to have the newly machined shaft case hardened!
The car now runs noticably better. The most significant improvement is starting - starts in one crank revolution instead of three.
18R-C Electronic Ignition - Solution!
Wed, 21 May 2003 09:21
