Dean I thought less oil is better until I started Land Speed stuff. But have found out that all is not so straight forward.
I was not expressing a theory about more Power it was based on actual comparative testing. There has been back to back Dyno testing done with different Oil Mixtures and richer Oil mixture made more Power in the tests. It's one of those counter intuitive things but the explanation is again simple Physics.
I am happy to continue with extra Oil in my RGV/Aprilia250. I still run the Suzuki PEI Pump and adjust the settings to put more oil into the system.
Had many runs at Speedweek down here in 2010 in M/G 250 and the engine worked great and I was pinned at 12000 very smoky RPMs for over a mile on several Runs around 119mph (they do about 123-125mph with a fairing) and I had no Plug Fouling. Piston/Cylinders were perfect after the Event and they had 3000 kms on them before Speedweek.
Just got the new setup (still use stock Radiator) Dynoed and it made 78RWHP (stock 64hp on same Dyno) despite being deliberately Jetted Rich. Engine Temps stayed consistent, EGTs were consistent with a Rich setup.
Land Speed Stuff is different and Power is no good without durability and it's a real challenge for all of us, especially with a 2 Stroke.
Like I said a good topic for Tech Discussion.
Pete
#866