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Propene oxide - 12/16/2002 10:34:23 AM   
Rudeboy



Posts: 3255
Joined: 12/9/2002
From: Bejing, BELGIUM
Status: offline 		Any info on the use of this substance in four stroke glow engines?
I understand it is used as a detonation inhibitor...
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Propene oxide - 12/23/2002 5:22:10 PM   
rsieminski



Posts: 1406
Joined: 4/24/2002
From: Sarasota, FL, USA
Status: offline 		propylene oxide?
http://www.holdfastmac.com.au/techcharts.html


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Propene oxide - 12/24/2002 4:04:13 AM   
downunder-RCU



Posts: 1125
Joined: 12/27/2001
From: Adelaide, South Australia
Status: offline 		Wow...great link and some fantastic stuff! Oh, wait a minute, that's my web page.......

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Propene oxide - 12/24/2002 4:31:16 AM   
rsieminski



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Status: offline 		I learn from the best.


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Propene oxide - 12/24/2002 5:27:12 AM   
Rudeboy



Posts: 3255
Joined: 12/9/2002
From: Bejing, BELGIUM
Status: offline 		So where does one get this stuff? What else is it used for?

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Propene oxide - 12/24/2002 8:54:32 AM   
rsieminski



Posts: 1406
Joined: 4/24/2002
From: Sarasota, FL, USA
Status: offline 		VP racing, or a sprint car supply place. I couldn't tell any difference when I added it to my fuel. I'm almost sorry I bought it, as it was about $40/gal. Why would you want it?


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Propene oxide - 12/24/2002 8:45:48 PM   
Rudeboy



Posts: 3255
Joined: 12/9/2002
From: Bejing, BELGIUM
Status: offline 		I have some books on building your own four strokes from a highly respected german engineer. There are some chapters in it on fuel mixtures, lubricants and power boosters. It is supposed to act as an anti-knock agent. If the effect is so minimal, I guess there's no point in paying big bucks for it...
One of them engineers also talks about the use of TETRAnitromethane. It would be capable of boosting power like 500% in the right engine...contains more oxygen as liquid oxygen! It would be impossible to stop the engine with the throttle however. Highly explosive stuff, avoid, avoid! But, interesting reading.

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PROPYLENE OXIDE - 12/24/2002 10:39:03 PM   
MECHANIC


 

Posts: 25
Joined: 2/23/2002
From: Eastern PA
Status: offline 		I would not use this stuff. It is nasty to work with. It has a low flash point and really stinks. I think it is toxic as well. I had to use it to make racing fuel for a carrier flyer in the 70's. We used 70% nitro and 10% PO along with 20% of a special synthetic oil. I only made one liter at a time. The purpose of the PO was to light the nitro and make sure it all burned. I don't think anyone needs to use it these days. Very expensive now and not worth the trouble and hazard.

Regards, Duane

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Propene oxide - 12/25/2002 12:04:20 AM   
rsieminski



Posts: 1406
Joined: 4/24/2002
From: Sarasota, FL, USA
Status: offline 		Yeah, the only time I've seen it used is with very high nitro fuels, exactly like you said. I thought it would be like nitro. The sprint car guys add 10% to their methanol. The mechanic said the rule of thumb was open up the jets by the same % as the propylene oxide you use. 15% propylene oxide, open the jets by 15%. But it doesn't seem to react that way in our fuels.

< Message edited by rsieminski -- Dec 25 2002 3:22AM >


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