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Mixing gasoline with Glow Fuel - 5/8/2003 9:15:49 PM   
John Wells



Posts: 817
Joined: 12/11/2001
From: Overland Park, KS, USA
Status: offline 		I was wondering if adding a tad bit of gasoline to glow fuel would help a 4 stroke engine retain heat between combustion strokes. I have several gallons of 5% glow fuel and was wondering if there's anything I could do besides buying some nitro to add to the 5% mix, or buying different fuel?

Thanks,

JW
       Post #: 1

NOOOOOOOOOO - 5/10/2003 1:16:08 AM   
tylerin2000


 

Posts: 10
Joined: 5/9/2003
From: Ft. Lauderdale, FL, USA
Status: offline 		I assume you like your face the way it is. Therefore I SERIOUSLY recommend NOT putting ANY quantity of gasoline in a glow ignition engine. It MAY work in a very small percentage, but gasoline has a lower flash point than methanol and will preignite like crazy. Plus I don't know how gasoline mixes with methanol; i.e. what chemical reactions may occur. Nothing may appear to have happened until you try to use the fuel, then all bets are off. Stay safe ok buddy?

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Mixing gasoline with Glow Fuel - 5/10/2003 1:22:27 AM   
PigMan Buggerus



Posts: 827
Joined: 11/26/2002
From: Cincinnati, OH, USA
Status: offline 		Keep it safe, buy some Nitroil from Klotz. 78% Nitro Methane, 22% all synthetic oil. It should give you the results your looking for.

[url]www.klotzlube.com[/url]

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Mixing gasoline with Glow Fuel - 5/10/2003 2:26:41 AM   
John Wells



Posts: 817
Joined: 12/11/2001
From: Overland Park, KS, USA
Status: offline 		OOOOOOOOOOOkkkkkkk !!


It was just an idea.

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Mixing gasoline with Glow Fuel - 5/10/2003 3:53:09 AM   
Homebrewer



Posts: 1335
Joined: 12/29/2001
From: Colorado Springs, CO, USA
Status: offline 		Adding up to 3% acetone will work as well on low nitro.

Your best bet is to use higher nitro fuel and the hottest plug you can find (OS F is undisputablely best plug for 4 stroke).

Another thing you can do is find some 15 or 20% nitro and mix them 50/50 with your low nitro stuff. I mix fuel types and brands all of the time. Most recently I decided to mix Coolpower 15% with Sig fuel. The result is a fuel containing 18.5% oil, 15% nitro, and about 75% castor/25% synthetic.

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Mixing gasoline with Glow Fuel - 5/10/2003 8:32:17 AM   
downunder-RCU



Posts: 1125
Joined: 12/27/2001
From: Adelaide, South Australia
Status: offline 		Gasoline was a common additive (up to about 10% I think) used in glow fuel back in the days of CL team racing to extend the range. The downside was a somewhat hotter running engine because gasoline has far less internal cooling capacity than methanol. Flash point is of no consequence (the flash point for methanol is 61F, acetone is 0F, ether is -40, gasoline -45F) but resistance to detonation is. Gas will tolerate a higher compression than nitro.

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Mixing gasoline with Glow Fuel - 5/10/2003 10:51:45 AM   
Ed Cregger



Posts: 7645
Joined: 1/31/2002
From: Ringgold, GA, USA
Status: offline 		Which brand of four-stroke glow engine is having difficulty utilizing 5% nitro glow fuel?

My little OS .20 four-stroke loves 5% nitro fuel. It easily hand starts, is outstandingly reliable at idle and all other speeds above.

I use mostly OS Type-F glowplugs, Enya #3 or McCoy four-stroke plugs on engines with a short reach requirement. No problems with any of them.

The latest trend in utilizing high nitro fuel in four-strokes has caused some of the manufacturers to change their engines to accomodate such fuel. Saito and YS come immediately to mind. Is your engine one of these brands?

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Mixing gasoline with Glow Fuel - 5/10/2003 4:04:34 PM   
John Wells



Posts: 817
Joined: 12/11/2001
From: Overland Park, KS, USA
Status: offline 		I haven't tried it yet, but I just got a Saito 91. All of the "experts" that give free advise say I need to use at least 10% nitro. I'm going to try 5% nitro as soon as I can get the engine installation finished.

JW

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Mixing gasoline with Glow Fuel - 5/10/2003 6:42:18 PM   
PigMan Buggerus



Posts: 827
Joined: 11/26/2002
From: Cincinnati, OH, USA
Status: offline 		I bet your Saito 91 will run fine on 5%. You just won't be getting the maximum performance out of the engine. I have a Saito 100, I broke it in using 15% nitro fuel, 20% all synthetic oil. It would turn an APC 15x6 at about 9400. After the first gallon I switched to 30% nitro and 20% all synthetic, and it turned the same prop at 9950 RPMs. So go ahead and give the 5% a try, if you find you need more power, bump the nitro up a bit. Saitos love the Nitro for Maximum power.

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Gasoline can be used - 5/13/2003 8:14:30 AM   
theredcad



Posts: 36
Joined: 2/4/2002
From: Grand Rapids, MI, USA
Status: offline 		Gasoline was often added to glow fuel in the old days and I sometimes substitute the acetone for gasoline when I'm out of acetone. I use about 1 to 3 %. Sometimes I will make a winter brew and add a dash of ether to aid cold stars too.
However I think your engine will run just fine on 5% . I have actually had better results with all around usability with 10% and seen some idle problems occur with too much nitro.

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Mixing gasoline with Glow Fuel - 5/13/2003 4:23:11 PM   
John Wells



Posts: 817
Joined: 12/11/2001
From: Overland Park, KS, USA
Status: offline 		So, perhaps mixing a small amount isn't as suicidal as some think. I tried the 5% and it runs fine. It leaves me wondering what 30% nitro would do for the performance. Thanks.

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Mixing gasoline with Glow Fuel - 5/13/2003 8:06:25 PM   
PigMan Buggerus



Posts: 827
Joined: 11/26/2002
From: Cincinnati, OH, USA
Status: offline 		If your 91 is anything like my 100, the 30% makes a big improvment. The transition to full speed with large props is considerably better, much less spool up. You will also see higher top end RPM's. After the first gallon for break in, I only run 30% in my Saitos.

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