Originally posted by InitialD
I would say stick with 30%. No reason to go with 40% nitro. More wear and tear. Of course the car goes faster when tuned right.
With 40%, you need to add 0.1 mm copper shim to the stock 0.3 mm silver aluminum shim.
I can't remember but I read an article of XTreme RC magazine and they were comparing low and high nitro content fuel in terms of laptimes and their engine temperatures. One is when tuned properly and the other is when you do not. I'll dig it out and see.
You guys were all over that one like flys on pig sh..!!! Listen to Palmaris, He is exactly right about the running in. Any Novarossi motor is destined to be a good motor and the one you have as far as I know is a beast. But I dont think it is race legal as I think it has 5 ports. Essentially what you have to remember is that it is your choice, I run 16% Nitro, and am planing to go to 15% with less oil, But this will be a self mix scenario.