ORIGINAL: Dave trimmer

First off is it ok to run 2stroke fuel in a four stroke engine?
It'll work fine.
also how do you choose the percentage of nitro needed in different engines.
10-15% is typical. Some 4 strokes seem to like the extra nitro.
I've been running 10% in my 2 strokes, but my spad could use some more power so i might change it along with my other 2 strokes to 15%.
That'll be fine.
will this give it more power.
A little usually
Lastly what exactly is nitro and how does it work?
A "nitro-burning" engine and a "top fuel" engine are the same thing -- engines designed to burn nitromethane rather than gasoline. Gasoline is a hydrocarbon, and the common chemical formula for gasoline is C8H18. Nitromethane has the formula CH3NO2. Nitromethane is a little like gasoline that has been pre-mixed with nitrous oxide. The fuel comes with its own oxygen atoms to help it burn.
In other words, it promotes cumbustion.



Thanks, Dave Trimmer