will switching from 20 percent nitro to the 30+ nitro make a big difference? and is it alot harder on the engine or harder to tune... I'm gettin ready to buy my second gallon and need to know....thanks in advance
If your going to swtich fuels your going to have to reset all your carb needles back to factory setting and retune everything. its not any harder then doing it the first time. I would recomend staying with what your already running though. When my bashing buddies switced thier nitro percentages, thier truck didnt seem to run as well as what they broke thier trucks in with.
You will have to retune for the higher %, just remember tuning is more than just carb settings. Depending on what you're running, you may need a colder plug and/or add a shim(s) under the head.
The higher % will shorten overall engine life a little, but not drastically.