Paul,



I have been looking at ways to keep the stock 2ndgen CAS for future
modifications like ignition system upgrade.

At present Tracy set up the EC-4 to use the RX-8 trigger wheel.  The
2^nd gen CAS unit hits the V belt and augmenter tube.

I even tried to cut the housing down and perhaps design a low profile
cover so the belt would clear and the augmenter would clear.  I think
the only way that will happen is if I eliminate the hall sensor for the
2 tooth wheel and keep the lower wheel.  At least I would have a source
for your tach circuit.  Using the fly wheel would put the frequency way
out of the range of the tach circuit.



Joe Berki


Here is my new trigger wheel. I am getting it ready for a Lamar ignition
demo at Sun N Fun in 2 weeks.
I will also work with the RX8 CAS. Fires at 20 deg BTC and 4 or 5 times
after that
every 10 degrees of e-shaft rotation.

Paul Lamar
Paul,

That looks good and I will keep that in mind once I get the engine fired and
checked out but there is a long way to go.  I am looking at ways to modify
the CAS so it can accommodate all of the previously mentioned issues.  I
noticed that the sensors within the CAS are similar but mounted at different
"levels" in order to "see" the tooth wheels that are stacked upon each
other.  Can I relocate the 2 tooth sensor to a different location along the
"bolt circle" that defines the sensor positions around the wheels? I would
have to make a different mark in the housing (drive gear end) as there seems
to be a mark on the gear and one on the housing to line up prior to
inserting into the timing cover and engage the E shaft gear.  I assume the 2
tooth set up is for E shaft position.  How close to each other can the
sensors be located?  I guess I could re-locate the upper sensor and connect
it to a scope spin the unit and look at the outputs.  Once I can verify that
they can operate I can build a carbon fiber cover that clears all of the
other components.  Thanks for any input.

Joe Berki

I don't think the 2nd gen CAS will work with out a computer.
Both levels are used by the software.

My ignition will work with out a computer.

Paul Lamar


How about bolting a trigger to the rear housing side of the flywheel. I know it is tight in there,
but the advantage is a belt failure will not take out your pick up wires. You will still lose coolant
circulation, but it does buy you some time. The pick up wiring getting ripped off causes an
immediate Mayday moment. Not good. Safety says to eliminate as much mechanical failure
possibilities as possible. That then just leaves ( as we say with autos) the idiot behind the wheel
to make the error.

Dale Davies


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