Thought I would past along some imformation on testing of the new YS-170CDI Ignition engine. This is a standard 170 with the retofit of the ignition system. YS really outdid themselves on this setup. The intake rotor is now made from aluminum and has the ignition pickup magnet mounted into it. The hall effect sensor is in mounted in the fenolic backplate making for sealed internal installation. The ignition module is a standard battery powered unit with a wire mesh insulated high tension lead. Spark plug is a 1/4-32 standard unit that's been around for years.

Ignition power: I ran battery power directly from the receiver to save weight. I have flown both the Futaba G3 on 2048 and now the 2.4/R6014FS with the ignition powered directly from a spare port in the receiver for 6.0 volt power to the ignition and not one radio problem to date, something we would have never done years ago due to the scare of ignition noise through the radio.


My setup:
Cool power 30% LS fuel
APC 19-11 New prop that APC made me for this application, availbale now.
Addional weight the the airframe= 4.5 oz


Here is what I have observed:

Instant Starting
No detonation at anytime
No kickback
1400 RPM Idle, and smooth
Best down line braking seen to date
No flameouts
Much less smoke
Power is the same or better than glow plug
Fuel economy- 8 oz of fuel is all that is needed for P or F pattern. Currently with 20 oz of fuel at takeoff I can complete P and F patterns, 3-4 extra manuevers, land, taxi and still drain fuel from the tank. All on 30% LS Cool Power. At power you can hardly see any smoke what so ever. I have now installed a second overflow on the fuel tank to limit the fuel load for contest flights to 10 oz. I just saved a half pound!

I am so impressed I dont think I will ever run a glow plug for pattern again.

I'm Sold

Richard at YS tells me this fall for upgrade kits to retrofit current engines, so a little while longer to wait while more testing and manufacture of the systems takes place.

Thank You YS