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General control line discussion => Open Forum => Topic started by: Bootlegger on July 30, 2020, 07:43:05 AM

Title: 09 cox fuel
Post by: Bootlegger on July 30, 2020, 07:43:05 AM

 What is a good fuel for Cox 09 Medallion engine, and where can I get it?  Obliged...

Title: Re: 09 cox fuel
Post by: Dan Berry on July 30, 2020, 07:48:15 AM

Use the same as you would in a 1/2A from COX.
15-25% pop and 20-225% all castor oil.

Title: Re: 09 cox fuel
Post by: kenneth cook on July 30, 2020, 02:03:59 PM

            There's little to no parts support for the .09. Running nitro above 20% really can taxi your glowhead.  Plugs are even hard to come by. Yes, adapter plugs for standard longs work but not like the Cox glowhead does. You give up a lot of rpm's using adapter heads. I don't own the Medallion .09. I own the TD .09's. I run all of my Medallions including .049's on Powermaster GMA 10% nitro fuel and they run just fine with no needling issues.  I personally don't use all castor because these engines like to varnish up rather quickly and hotter weather brings it on quicker. Sig Champion is 20% total oil 50/50 synthetic just like the Powermaster.

Title: Re: 09 cox fuel
Post by: Bootlegger on August 01, 2020, 04:01:36 PM

 Mr Cook, do I understand that you suggest using powermaster 10-22 fuel?  I'm obliged