espuny(at)terra.com.br
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 Posted: Sat Aug 09, 2008 2:48 pm Post subject: RES: Re: 91 octane, time to be heard! |
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Ethanol is a great fuel, more powerfull, cheaper and less poluent when used
with the proper engine.
The detonation of ethanol requires more compression rates, so the first
ethanol fueled engines couldn't run on gas because they were built for
ethanol.
Now we have the absolutelly safe "flex" technology that allows an engine to
run either on gas, ethanol, or any blend of them, but this required years of
research and the engines have an injection computerized system that "reads"
the fuel composition and performs as it has to be. The engines have also
higer compressiom rates to burn alcohol and are stronger to bear the burn of
gas at those rates, and other developments.
There are also many certified air engines and certified planes flying on
100% ethanol here, in Brazil (the world's largest ethanol producer and the
first to adopt the use of it in cars in large scale, more than 20 years
ago). Very safe for flying, but the hole project was directed to it (engine,
tanks, exhaust system, injection, materials, filters...).
What I want everybody to understand is the fact that we have to observe what
the engine factory writes in the manual. That's all.
So, when Rotax, Jabiru and other tell us formally that we can use ethanol,
they'll also tell us how much of it a fuel may contain. Because there's no
freedom of choice of % . There are narrow limits unless aviation adopts
today"s modern bi-fuel car tech.
So, lets just ask them and let the factories publish their instructions and
follow it.
-----Mensagem original-----
De: owner-kitfox-list-server(at)matronics.com
[mailto:owner-kitfox-list-server(at)matronics.com] Em nome de Roger Lee
Enviada em: sábado, 9 de agosto de 2008 18:43
Para: kitfox-list(at)matronics.com
Assunto: Re: 91 octane, time to be heard!
Hi Noel,
I think that's all anyone wants is some fuel we can use with no alcohol.
Many people like the unleaded 91 because it's cheaper and less damaging to
their engine than the leaded stuff.
--------
Roger Lee
Tucson, Az.
Light Sport Repairman - Maintenance Rated
Rotax Service Center
520-574-1080
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=197568#197568
Esta mensagem foi verificada pelo E-mail Protegido Terra.
Atualizado em 09/08/2008
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