On 2/5/2016 9:18 AM, CRNG wrote:
On Fri, 5 Feb 2016 09:11:03 -0500, Ed Pawlowski wrote
in

Many years ago my brother and I did some testing on small displacement
air cooled 2 cycle engines. (model aircraft and race car). With regular
lubricants they would run in the 12,000 to 15,000 RPM range. With
synthetics, we could get 15,000 to 18,000 RPM.

Just curious, How did you measure the RPM? When I was a kid (55 years
ago) I use to fly those model airplanes with the small gas engines (we
call them "U-control", they were at the end of 60' of double wire). I
used to read all the model airplane magazines and don't recall ever
seeing a device to measure RPM. Not that I would have been able to
afford it.

But I don't remember much anymore.


My brother borrowed a strobe from work that counted revolutions. I
don't recall the exact instrument, but it was not very large.

In the 1970's I worked for Sullivan Products (Pylon Brand) and they made
those wires you used. We flew radio control planes from the
Philadelphia Naval Yard air strip. For me it was a cheap hobby as I got
a lot of stuff either free or very cheap.