The flying monkeys got me...

Helis and fixed wing

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Thursday, April 11, 2019

Sweet Evolution, I LOVE this engine!

Today the Tech Aero Ultra BEC/Remote Ignition Switch arrived. I installed it (could not have been easier, described below). This was all I needed to start the engine.

Factory settings, didn't even check the needle settings. Xoar 12x6 break in prop.  I ran my stock 30:1  (4.3 oz oil to 1 gallon gas) fuel, and it is, like my RCGF engines, still spitting oil all over. Evolution calls for no less than 20:1 (6.4 oz to 1 gallon)! Can you imagine how much oil that would throw? I don't see me increasing to 20:1, warranty or no. I only ran it for about 10 minutes, barely touched the 420cc tank. I did forget not to run full throttle, but next time, when I run a full tank, I will be more careful to stay 1/2 and less.

No priming. Filled the tank (saw no leaks), turned everything on, put the electric starter to the cone and BRRRRRRP! She started within seconds! Ran just fine. I won't do any tuning until I have run a tank or two through her. I don't know that she will need it. I really like having the telemetry with the Spektrum AR8010T telemetry receiver.  My satellite receiver only has one antenna, which I mention as I thought it odd...  I really like that bind button instead of having to plug it. The Evolution 10cc kit came with a lot of extras, including an RPM board that plugs into the RPM plug on the side of the receiver using a satellite plug. That was it. The DX8 required no special setup. Now I have the battery pack voltage and RPMs. I like this telemetry thing and am glad it's built in: Evolution-Specktrum coordination!  Nice engine. Higher pitched sound than I remember from the RCGF. Oil is on the top of the wing, and sprayed all across the left side of the fuse, all because of that muffler. It comes with a silicone diverter tube, but that's just too much hanging out there.  I don't feel like spending the money for a Pitts style muffler.



Look at that natural oil weathering...



This is the Tech Aero Ultra BEC with integrated remote kill switch. Gary Hoffman turned me on to this. It could not be easier to install. It eliminates the need for separate ignition and receiver packs, allowing me to use one 2S LiPO 2550 mAh battery for both. The 3-wire plug goes into an AUX channel on the receiver (I used AUX 3, assigned it in the radio to the MIX/HOLD switch) This provides power from the receiver to the ignition. A set of jumpers sets the voltage sent to the ignition. I have no jumpers, sending 6.6V to the ignition. The 2-wire plugs into the ignition red plug that is usually where an Ignition Battery lead would plug in, or a remote kill switch like the RCXel one I use on all my other gassers, which is half the price. The kill is the AUX switch cutting the power to the ignition. That's it! The LED indicates power on, and comes in a variety of colors. I chose Green. Worked the first try. Flicking the HOLD switch turns it on or off. Mine is set 0 is on, 1 is off.

The only thing I need to do need to do now is try to figure out how to get the cowl on past that muffler and see how much I need to remove for the cylinder head.

Sorry, Joe Nelson... I think I am becoming an Evolution guy.

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