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All Forums >> Glow Engines, Gas Engines, Fuel & Mfg Support Forums >> RC Fuels >> Changing Fuels
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Changing Fuels - 8/6/2007 5:47:32 PM   
Kirkyboy


 

Posts: 51
Joined: 4/2/2007
From: Leicester, UNITED KINGDOM
Status: offline 		Hey guys,

Have just finished my last bottle of Flair Yellow Spot which is 5% Nitro, 20% Castor and rest Methanol. Have just gone to model shop and bought Model Technics Formula Irvine. Which is 5% Nitro, 18% Oil (4% Castor and 14% "Klotz" and remainder methanol.

From what I have found, my new fuel is a great general sport flying fuel. But it is now mainly synthetic oil, do I need to do anything before switching to this fuel?

Cheers for any help

Paul

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RE: Changing Fuels - 8/6/2007 6:04:17 PM   
Jim Thomerson



Posts: 2718
Joined: 10/9/2002
From: Austin, TX, USA
Status: offline 		What engine(s)?

(in reply to Kirkyboy)
       Post #: 2

RE: Changing Fuels - 8/6/2007 6:22:46 PM   
Kirkyboy


 

Posts: 51
Joined: 4/2/2007
From: Leicester, UNITED KINGDOM
Status: offline 		Irvine .46

Cheers

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RE: Changing Fuels - 8/6/2007 6:40:10 PM   
carrellh



Posts: 3125
Joined: 3/30/2003
From: Garland, TX, USA
Status: offline 		Just Engines indicates 18% total oil is fine for Irvine engines:
http://www.justengines.unseen.org/fuels.htm

Since you’ll now have 2% more methanol in the mix you’ll probably need to adjust the needles some to compensate.


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Regards,
Carrell

(in reply to Kirkyboy)
       Post #: 4

RE: Changing Fuels - 8/6/2007 10:57:55 PM   
Kirkyboy


 

Posts: 51
Joined: 4/2/2007
From: Leicester, UNITED KINGDOM
Status: offline 		Yes, I expected that, but I don't need to do anything else then? I thought there was maybe some sort of procedure when switching from castor to synthetic.

Cheers
Paul

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Life is simple, Eat, Sleep, and Fly!

(in reply to carrellh)
       Post #: 5

RE: Changing Fuels - 8/7/2007 1:53:50 AM   
downunder



Posts: 3011
Joined: 10/10/2002
From: Adelaide, AUSTRALIA
Status: offline 		There aren't any procedures needed when switching (other than a retune of course) but personally I'd run a little richer with synthetics just to be on the safe side.

(in reply to Kirkyboy)
       Post #: 6

RE: Changing Fuels - 8/7/2007 6:14:40 PM   
carrellh



Posts: 3125
Joined: 3/30/2003
From: Garland, TX, USA
Status: offline 		There's no procedure that I know of other than tune and run.

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Regards,
Carrell

(in reply to Kirkyboy)
       Post #: 7

RE: Changing Fuels - 8/7/2007 6:46:57 PM   
Kirkyboy


 

Posts: 51
Joined: 4/2/2007
From: Leicester, UNITED KINGDOM
Status: offline 		Thanks for your help guys. Think i'm going to run slightly rich for the first tankful just to be on safe side.

Cheers people!
Paul

_____________________________

Life is simple, Eat, Sleep, and Fly!

(in reply to carrellh)
       Post #: 8

RE: Changing Fuels - 9/16/2007 5:55:23 PM   
tom woodward


 

Posts: 13
Joined: 8/8/2007
From: , OR, USA
Status: offline 		What @ nitro to run in .15 black jack 28 boat?

(in reply to Kirkyboy)
       Post #: 9

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