ORIGINAL: jimmyjames213
i suck the fuel back into the jug, less chance of spillage later.
as for nitro %, 0% works, 5% is plenty, anything above wont do much besides give you a few rpm and empty your wallet.
Agreed.
There was an article not too long ago in one of the RC magazines that went into Nitro usage versus engine size.
The bottom line is that you are merely wasting money using more than 5% nitro on engines larger than .60 up.
On engines smaller than this more nitro was found to help... e.g. 10% for .60 down to .46's, and 15% on smaller engines.
Up to the point I read the article I was using 15% and 10% on my 1.20 through 1.80 engines. I glad I read it, as I then switched to 5% without a single hic-cup. I may have adjusted the engine by a click but that was the only change.
Given the difference in the fuel prices for lower nitro fuels, I was quite happy with the results.
I now run 5% on my O.S.'s, Saito's, GMS's, Tower Hobbies, SuperTigre, Magnum, ASP and K&B engines.
Note at higher altitudes your results may vary...
I haven't noted any differences in temperatures down to 50 degrees F, but I tend not to fly at temps below this.