As of Friday afternoon.

I am buying parts for 100 coil on plug units to be used for testing by Mazda (hopefully) and others.

Will fire six times or more around TDC at 11,000 RPM.

If somebody wants one or more for testing let me know.

Paul Lamar.... Still in Virgina

If all goes as planned be back in SOCAL Sunday night.

Fantastic Paul, Milo



Can I trigger them with the older crank angle sensor?

Lewis Bjorkacro


You can but you will only get two sparks close together on the front rotor. I take it this is the one you are talking about. A simple circuit could be built to use the lower part and count pulses.

Best to take it out and save the weight. ABS wheel speed sensors are cheap and two are required for a two rotor. Or you can use 3rd gen or RX8 sensors. You can also make your own as all they are is a bar magnet with a coil of wire wound around it.

This ignition system can also be triggered directly by a computer but it must be reprogrammed to eliminate the dwell time and enable multiple sparks.

Paul Lamar   Back in SZP


I'd like two for my single rotor.  Tell me how much $ and when/where.

Lewis.


In about 2 weeks. Introductory price is $175 each plus shipping.

Paul Lamar

Paul, I haven't been following this very closely so I have a couple of questions.  Does your on plug ignition system allow me to get rid if the CAS and the Mags?  Also, will it work with Tracy cooks EC2? For the $175 do you provide the trigger wheel and mounting brackets?  I assume for a whole set up it would be $175 X 4 = 700 plus shipping?  Oh, the materials for the mounting cups should be delivered to your home tomorrow.

Mike C


Yes. You must fab something like this.  Don't use Tracy's ignition trigger wires.
It is made from a McMaster Carr chain sprocket with most of the teeth removed
with a hand friction cut off tool.

It will work with or without Tracy's ECU with fixed timing. No connection is necessary.

It only draws .1 amp out of the battery per coil at 10,000 RPM. Less amps at lower RPM's.

If Tracy reprogrammed the ECU and eliminated the now unnecessary dwell time it
would also work.

For the lowest rotary fuel burn Tracy would have to trigger it at say 22 deg
BTDC and every ten degrees thereafter up to 20 0r 30 deg ATDC.

The up side as far as the program is concerned is there is no need to calculate
the dwell or use an RX8 trigger plate. That takes processor time and makes
the program more complicated.

Paul Lamar

The Rotary Engine News Letter. Powered by Linux.
ACRE NL web site. http://www.rotaryeng.net.
You Tube http://tinyurl.com/beqqxas.
Copyright 1998-2014 All world wide rights reserved.