We have found some interetsing results by running a small percentage of nitro (W50:M40:N10). We have gain more calculated power and retarded ignition (2-3 degrees).
This is most probably due to the engine speed of 8K+ and flame speed is more important to produce top-end power. (skyline)
I was trying establish if the retarded timing is good or bad - either the knock level was lowered or frame speed was higher due to the nitro. But power output is increased, so I have to assume that the flame speed is increased. Guessing at this stage. I am not going to push nitromethanol vs nitrous gas debate. It will no doubt appear soon on another thread.
Ideally, you want a fast burning+ high knock resistance fuel. Hotrod has posted some interesting additive on another post:
http://www.aquamist.co.uk/phpBB2/vie...t=457&start=45
I think either hotrod's suggested additive will be good for this or nitro can do the same thing. At present we are pushing forward on the nitro experiment.