Really...?

RC-FIEND, you have three engines, you think your glow plug runs on 60 volts, and that dirt and/or dust just disintegrate in your engines.

Take one of your three engines, and run some fuel blends through it. Start with zero nitro, and go all the way to 50% nitro in 5% nitro steps. Keep the oil % constant. Record the needle settings at which you engine runs best for each fuel blend.

PS you might want to run a spell checker om this one