ORIGINAL: briangp
So I have an ASP red-head 1.08. From everything I'm reading, I need less than 5% nitro fuel. The local shops aren't carrying anything less than 10% I'm not into mixing my own, not to say that I wouldn't be down the road... but I would like to be able to run this motor up this weekend.
My question is can I dilute pre-mixed fuel do bring it down to <5% nitro? If I get a heavier oil mix can I just add some methanol to it (some math would be involved) and dilute? I already have a gallon of 15%, and I can go buy 10%, not nothing less.<br type=''_moz'' />
Yes, but watch to make sure to keep up the oil percentage. You can add castor oil to up the oil after diluting. I actually run straight methanol mixed to 20 percent oil with Klotz Techniplate which is synthetic and castor. I use this with no nitro in my ASP 90. My Evolution did not run that well with no nitro so I mixed 2 parts of my no-nitro mix 20 percent fuel with 1 part 15 percent nitro/20 percent oil fuel and got 5 percent nitro for the Evolution with the 20 percent oil. You could mix two parts menthanol with 20 percent oil to one part 20 percent nitro and 20 percent oil to get about 7 percent nitro and 20 percent oil. Mix a small amount and let sit awhile to make sure the oils do not separate out. Castor and Klotz and what ever oil mix wildcat helicopter fuel has in it works fine for me. I get my methanol at a speed shop and my Klotz from tower. Get castor from Sig or the drug store. Good luck.
Regards,
Richard