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Fox fuel

Stuka Stunt Main Forum · 6 of 6 known posts recovered

LeagueCityRalph · Jan 21, 2004 08:49 PM

#0 source
OK. If I add 1 Pint of Castor Oil to 1 Gallon of Powermaster 10% Nitro fuel (18% 50/50 oil) I end up with 8.88%% Nitro and 27+% oil, of which 2/3 (more or less) is Castor.

This should be close enough to OK for an L&J or older Fox .35, right? As long as I don't go lean??

Need to start flyin' soon,
Ralph

Bill Little · Jan 21, 2004 09:04 PM

#1 source
Hi Ralph,
Just got back my Fox from Larry recently. He really recommends 10% X 28%. If you can get the Powermaster, I would think you can get the GMA 10% X 29%.
I am looking for some suitable 15% nitro which he says would be best.
Bill <><

Disclaimer: I am neither a NATS Champion, engine reworker, engine producer, column writer, Hobby Shop owner, *rockeet* scientist, nor otherwise. Just an old Advanced flier.

Steve Helmick · Jan 21, 2004 09:27 PM

#2 source
Powermaster has both 22% and 29% oil "GMA" (the former being 50-50 castor/synth, and the latter being all castor) in 5%, 10% and 15% nitro. I have not yet been able to get the 15% through Ultimate Hobby, our LHS, because their distributor doesn't stock it. Bummed. Steve

Larry Foster · Jan 22, 2004 07:31 PM

#3 source
>OK. If I add 1 Pint of Castor Oil to 1 Gallon of Powermaster
>10% Nitro fuel (18% 50/50 oil) I end up with 8.88%% Nitro
>and 27+% oil, of which 2/3 (more or less) is Castor.
>
>This should be close enough to OK for an L&J or older Fox
>.35, right? As long as I don't go lean??
>
>Need to start flyin' soon,
>Ralph

I would recommend using 15% nitro. Adding 19 ounces to it would give you 28.5% oil and 13% nitro. If you already have the 10%, the mix should work OK providing you have run this engine on Synthetic/Castor mix before

I have run a lot of Byron’s 15% nitro and 16% oil with 21 ounces of castor added with great success.

Larry

phantomflier · Jan 22, 2004 11:55 PM

#4 source
Ralph;

Contact Ritch's Hobbies and order their super stunt fuel. They are about 45 minutes from League City, off loop 610, you can order as little as 1 gallon with the nitro % you desire. The super stunt fuel has 29% all castor.

LeagueCityRalph · Jan 23, 2004 07:26 AM

#5 source
Thanks for the suggestions/recommendations. I'll trek up to Rich's for the recommended fuel, and see if I can return or excchange the 10% PowerMaster.