Magnetic fired ignition, Anyone running it on a 4? |
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Magnetic fired ignition, Anyone running it on a 4? |
-JR- |
Jan 20 2005, 01:27 AM
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#1
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Life goes faster at 150MPH Group: Members Posts: 276 Joined: 12-May 04 From: Victoria BC Canada Member No.: 2,055 |
I've been putting together my new 2+ litre engine and have been looking into flywheel fired magnetic ignition. The crank fired ignition won't work too well I guess since the front of the engine is buried in air ducting.
I am contemplating installing two of these into my flywheel to run a MSD 6AL system. There is a nice inspection hole on one half of the case that would be perfect to mount a pickup in. Anyone tried this beofre and if so any pics or suggestions? Thanks! -JR- |
TimT |
Jan 20 2005, 02:42 AM
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#2
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retired Group: Members Posts: 4,033 Joined: 18-February 03 From: Wantagh, NY Member No.: 313 |
Yes the breakerless ignition did start earlier than the 3.2, but the 3.2 and later engines used motronic engine management, and the spark was controlled by the brain. the distributor only sent the spark to the appropriate cylinder. The brain controlled advance etc. The signal to the brain was taken from the teeth cut into the edge of the flywheel, (60 minus 2 teeth) the missing two teeth told the computer when to start the firing events.. the gap was "home" and that cylinder 1 was approaching TDC
I dont know if the msd needs a home signal, it appears not to. but if a home signal is needed, so the engine will know when the first spark event should occur, then an extra magnet is needed. ie 5 for an 8 cylinder, 4 for a 6, 3 for a 4 cylinder etc. if no home signal then 4 for an 8, 3 for a 6 etc.. |
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