Byron 4-stroke fuel  
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All Forums >> Glow Engines, Gas Engines, Fuel & Mfg Support Forums >> RC Fuels >> Byron 4-stroke fuel
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Byron 4-stroke fuel - 3/17/2006 4:57:26 PM   
Test005



Posts: 1044
Joined: 4/28/2004
From: Ţo, FINLAND
Status: offline 		I bought a case of Byron fourstroke fuel.
It's 15% nitro, 16% synth/castor mix.

Anybody tried this fuel?
I plan to run it in my .52-.70 sized fourstroke engines (3 OS, 1 Magnum)

       Post #: 1

RE: Byron 4-stroke fuel - 3/25/2006 12:00:58 AM   
broke_n_bummin



Posts: 838
Joined: 3/17/2006
From: Kershaw, SC, USA
Status: offline 		I'd be kinda hesitant. I mean, Byron makes good fuel, but most 4 cycles require 18% oil. I have used 5/16 in a 4 cycle, but not for long. It really needs the extra oil to keep the cam gear and lifters lubricated (that's what I was told). I'd run the 15 / 16 in the Magnum maybe, but not the OS 4 C's.
I do, however, run the Byron 15 / 16 in my .15, .25, .40's and .46's. My bigger 2C's I run Byron 10 / 18, and my 4C's love 20 / 20

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I may have to give up R/C Airplanes and Golf ... They make my Torrets act up...

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       Post #: 2

RE: Byron 4-stroke fuel - 3/26/2006 7:39:03 PM   
Test005



Posts: 1044
Joined: 4/28/2004
From: Ţo, FINLAND
Status: offline 		Thanks.
I'm gonna try running it and see how it goes.
I have read lots on RC universe and other forums and the "which fuel" & "Castor or no castor" seem to be very diffrent opinion among people.
My engines are not run very hard and I try to keep them rich.

(I guess Byon would be out of business if they made fuel that killed 4c engines? Besides, Byron is the only locally available fuel for me)

(in reply to broke_n_bummin)
       Post #: 3

RE: Byron 4-stroke fuel - 4/18/2006 2:57:16 AM   
dingo9882


 

Posts: 141
Joined: 4/1/2005
From: Sandy Hook, CT, USA
Status: offline 		I was using the Bryon fuel for about a gallon in my O.S. FL-70. It runs pretty good. But, if you add any sort of castor oil it will actually bog the engine down at idle because of the build. If you do add any type of oil to the mixture, try not to add to much.

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"This is a model airplane...But like Burger King, FLY IT YOUR WAY!"

(in reply to Test005)
       Post #: 4

RE: Byron 4-stroke fuel - 4/18/2006 4:14:50 AM   
Hobbsy



Posts: 10688
Joined: 12/2/2001
From: Colonial Beach, VA, USA
Status: online 		Castor is routinely added to fourstroke fuel, it will not effect the engine at all except to make it last much longer, especially the cam shaft. I've been running WildCat premium Extra with a castor blend sinc 1991. No problem.

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"I have gone faster backwards, upside down and on fire than most people have gone at all" Don Garlits

(in reply to dingo9882)
       Post #: 5

RE: Byron 4-stroke fuel - 4/20/2006 4:21:10 AM   
dingo9882


 

Posts: 141
Joined: 4/1/2005
From: Sandy Hook, CT, USA
Status: offline 		If you do add to much castor oil though, could it actually build up in the engine like it did mine.

_____________________________

"This is a model airplane...But like Burger King, FLY IT YOUR WAY!"

(in reply to Hobbsy)
       Post #: 6

RE: Byron 4-stroke fuel - 4/20/2006 1:26:04 PM   
Hobbsy



Posts: 10688
Joined: 12/2/2001
From: Colonial Beach, VA, USA
Status: online 		No sir, I ran my Enya .46 MKII, Saito .80 and Saito 1.50 for 2 seasons, 3 in the case of the Enya, on Fox 15% nitro fuel with 20% castor. A goldish color on the exhaust valve and about half of piston top was the only thing noticeable inside the engine, the mufflers, another story.

_____________________________

"I have gone faster backwards, upside down and on fire than most people have gone at all" Don Garlits

(in reply to dingo9882)
       Post #: 7

RE: Byron 4-stroke fuel - 4/20/2006 1:56:20 PM   
dingo9882


 

Posts: 141
Joined: 4/1/2005
From: Sandy Hook, CT, USA
Status: offline 		then what else could have caused my engine to constantly flame out at idle? Because as soon as I changed to the Hobbytown fuel 18% oil, the problem vanished. And I mean this was a problem for a while until I changed the fuel. Could It have been just that the fuel didn't work good for this type of engine.

_____________________________

"This is a model airplane...But like Burger King, FLY IT YOUR WAY!"

(in reply to Hobbsy)
       Post #: 8

RE: Byron 4-stroke fuel - 4/20/2006 2:31:57 PM   
downunder



Posts: 3198
Joined: 10/10/2002
From: Adelaide, AUSTRALIA
Status: offline 		Byron mixes fuel by weight and not volume so if your fuel has 16% oil by weight then this is about 13% by volume. A few people have done evaporation tests on Byron fuels and come up with quite low oil which seems to confirm this.

(in reply to dingo9882)
       Post #: 9

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