[AT] RE: high octane??

[Gene Dotson]

    I have seen the demonstration myself. Our Young Farmer group
had a representative from the Standard oil refinery who was our
guest presenter one evening. He has a variety of fuels and test
cylinders for his demonstration. He had clear Lexan cylinders of
approximately 2 1/2 inches in diameter. Each tube had one or two
spark plugs near the ends. When the low octane mixture was
ignited by the spark, the mixture burned very fast. When the
high octane mixture was used the burn rate was noticably slower.
He also demonstrated detonation with a tube that had a spark
plug in each end. When the mixture was ignited from both ends,
you could actually see the flame fronts travel through the tube
and when the two flame fronts collided, the result was a very
dramatic explosion. If anyone in the classroom was asleep, he
had their immediate attention.
    This would be an interesting demonstration for the Portland
show.

                        Gene



----- Original Message -----
From: "charlie hill" <chill8 at cox.net>
To: "Antique tractor email discussion group"
<at at lists.antique-tractor.com>
Sent: Wednesday, April 13, 2005 4:09 PM
Subject: Re: [AT] RE: high octane??


: My thinking runs with yours Andy.
:
: Charlie
: ----- Original Message -----
: From: "Andy Glines" <andyglines at hotmail.com>
: To: <at at lists.antique-tractor.com>
: Sent: Wednesday, April 13, 2005 1:51 PM
: Subject: [AT] RE: high octane??
:
:
: > Does high octane actually burn slower?  I thought that it
was simply
: > harder to light making it suitable for high compression
engines.  This may
: > be a little off-topic but I'm finding it very educational.
: >
: >>
: >>     Dean;
: >>     Actually your information is flawed. High octane
gasoline
: >>burns slower than lower octane. The additives slow down the
burn
: >>rate so it can be used in a high compression engine. Any
engine
: >>will develope the maximum power on the lowest octane fuel
that
: >>it can use without detonating.
: >
: >
: > _______________________________________________
: > AT mailing list
: > http://www.antique-tractor.com/mailman/listinfo/at
: >
:
:
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