Alan, I recall the fuel served up was 20% oil ( 50-50 mix ) and 10% nitro? I would of thought 25% all castor 10%
would of been a better Fox diet, since the 25% oil would run cooler, and maybe help with the restarts. The 50-50
will run cleaner over time, and also a bit faster too with less oil, but speed is not really the objective in the event.
I don't think only 10% castor would do a Fox 35 much good in a lean run, the extra 10% klotz will help cool it down
some, but not provide the bean oil buffer a mechanite piston likes. This is a good topic to explore opinions on.
I know what a Fox likes for fuel in stunt use and good longevity, but perhaps for Fox 35 'racing' use, the best fuel is
different?? It would be good to hear some more thoughts on what works well for a racing application. A Fox is not
a ball bearing ABC motor, if it was, then a 20% 50-50 mix, at 10% nitro should be great for sport racing.
I'm sure Glenn Lee knows his stuff! He told me that as soon as fuel hits the hot piston, it shrinks away from the
liner, and that drops the compression. The best method was to get fuel just up the line, and then try for a start.
Made sense to me, it's getting the theory to work in practice thats the tricky part. The motor doesn't always pay
attention to what it's supposed to do!
The Sig contest is a good one!
Stan Bidowski