Gerald O's Journal - Distributorless Ignition

Wake Forest, North Carolina, USA

Total Posts: 4 – Latest Post: 2009-12-18 05:28:44
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Distributorless Ignition

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http://www.mgexperience.net/journal/Gerald+O/4322

Gerald O'Docharty — Posted on The MG Experience
Friday December 18, 2009 5:28 AM

This view shows the ignition side of the engine. My modification was to adapt four GM coils that originally were fitted to late model General Motors LS-2 V8 engines, as found in the Corvette. This gives me one independent coil for each sparkplug. A Megasquirt ECU controls the spark timing and dwell sequentially for each coil and the timing is computer mapped.

The original Lucas distributor was converted into a cam position sensor to give engine position information to the ECU. It sends out a single signal once every-other revolution. The more precise timing signal comes from a new crankshaft position sensor. A 36-1 toothed wheel has been fitted to the harmonic balancer and a variable reluctance sensor picks up the position by the magnetic field of the wheel teeth.

EPSN0123

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Custom Electronic Ignition Map

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http://www.mgexperience.net/journal/Gerald+O/4004

Gerald O'Docharty — Posted on The MG Experience
Tuesday September 1, 2009 11:00 AM

When I converted the engine to fuel injection I also converted the ignition system to a distributorless electronic system, also controlled by the Megasquirt. This is the ignition curve map I'm curently running with.

ignitionmap

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Electronic Fuel Injection Conversion

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http://www.mgexperience.net/journal/Gerald+O/3715

Gerald O'Docharty — Posted on The MG Experience
Monday June 29, 2009 6:33 PM

In 2009 I converted the fueling to electronic injection, and the ignition to a distributorless system.

EFI

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Dashboard Restoration

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http://www.mgexperience.net/journal/Gerald+O/2586

Gerald O'Docharty — Posted on The MG Experience
Monday July 7, 2008 5:59 PM

As part of the interior restoration of my '78 B, I replaced the dash cover which had developed some cracks on top.

Here's the finished result - the messy details follow.