Originally Posted by
GREG DOE
...
Now I have a question for the folks who have experience with the Evolution. The remote needle valve on my engine would not back out far enough to get a "rich" setting. I tried all kinds of adjustments with no success. Finally I removed the needle valve from the remote bracket and installed it in the traditional location on the carburetor, and it worked great. Has anyone experienced this problem? Greg
I found that the stock remote needle valve would let me run it as rich as it should be during break-in. Even though this engine has a true ABC piston/sleeve, it is best to keep it warm enough during break-in. That said, in this video on break-in, you can't see it, but I used a JETT exhaust mounted remote needle valve instead of the the stock RNVA.
https://www.youtube.com/watch?v=x7MqNEdJk2k
On my Quickie, a fuselage mounted JETT RNVA was used.
Here are a couple more videos that newcomers or those just interested in the engine may want to view.
You can see the exhaust JETT RNVA at the start of this video
https://www.youtube.com/watch?v=kHLdty8dugU
https://www.youtube.com/watch?v=L1WqHGkMXl8
I posted the prop results in the last video description and you can see the differences:
I picked the props that are used by most people in Club 40 Silver.
Thunder Tiger PRO 40
7.8 x 6 - 18,700
9 x 6 - 16,500
10.5 x 4.5 - 15,400
10 x 5 - 14,800
Evolution 46 NX
7.8 x 6 - 18,600
9 x 6 - 16,740
10.5 x 4.5 - 15,900
10 x 5 - 15,270