ORIGINAL: opjose
I run my 1.00 and 1.25 Saitos with 5% Cool Power fuel.
I run anything smaller with 10-15% Cool Power fuel.
I've never have had any problems with my Saitos, other than they tend to come set wrong out of the box.
Yet they tolerate VERY poor tuning and still fire up and run, unlike other engines.
I only use one fuel for everything, 15%. I was using Power Master with the blended 18% oil. I'm using Wildcat fuel right now but I may start using Cool Power, just depends on the price. I ran my own tests on Nitro content and tried everything from 5% to 30%, I used OS and YS engines. Other then a little more tuning on the low end they all worked pretty good in my four strokes. The idle was a bit rougher with the 5% but I'm sure if I spent a little more time on it that wouldn't be any problem. The few added RPM I get with the 20% and 30% isn't worth the added cost. They are easier to tune with a higher nitro fuel though.