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Mark,
I am using
http://www.navzilla.com/mogas.php
however, you have to take it with a grain
of salt and call first. For example, I called Bob Hope airport at Burbank and found that
although they list Mogas, it is only available for ground equipment and they
will not pump it into airplanes.
Airports for Texas.
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1E7
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BUFFALO
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AMARILLO
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TX
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806-622-1374
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100LL MOGAS
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ELA
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EAGLE LAKE
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EAGLE LAKE
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TX
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979-234-2640
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100LL A MOGAS
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T27
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HORIZON
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EL PASO
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TX
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915-852-3554
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100LL A MOGAS
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7T7
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SKYWEST INC
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MIDLAND
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TX
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432-570-5983
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100LL MOGAS
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RFG
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ROOKE FIELD
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REFUGIO
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TX
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361-526-4141
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100LL MOGAS
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2F1
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SHAMROCK MUNI
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SHAMROCK
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TX
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806-256-3281
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100LL MOGAS
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F51
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WINNSBORO MUNI
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WINNSBORO
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TX
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903-342-3654
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100LL MOGAS
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B2
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From: Rotary motors in aircraft
[mailto:flyrotary@lancaironline.net] On
Behalf Of Mark Steitle
Sent: Monday, August 29, 2011 9:04
PM
To: Rotary
motors in aircraft
Subject: [FlyRotary] Re: How to
tune with ADI?
Bill,
What is your source for airports selling mogas? I would sure like
to find something in my neck of the woods (Central Texas).
Mark S.
On Mon, Aug 29, 2011 at 4:36 PM, Bill Bradburry <bbradburry@bellsouth.net> wrote:
David,
I don’t know how close to you any of these airports are, but they
are supposed to have Mogas and are in California.
Bill B
From: Rotary motors in aircraft
[mailto:flyrotary@lancaironline.net]
On Behalf Of David Leonard
Sent: Monday, August 29, 2011 4:55
PM
To: Rotary
motors in aircraft
Subject: [FlyRotary] Re: How to
tune with ADI?
Thanks Mark,
There is another nail in that coffin. I usually use 91 MOGAS when at
home, but there is no where to get MOGAS at airports here in the west.
Dave Leonard
On Mon, Aug 29,
2011 at 1:29 PM, Mark Steitle <msteitle@gmail.com> wrote:
David,
My wideband O2
sensor started acting up soon after I switched to 100LL. I called the
company rep to talk about a warranty replacement and he said that leaded gas will
kill the sensor (and offered to sell me another sensor). I mentioned that
there was nothing on their web site that said not to use with leaded fuel and
he (basically) said, "so what". So, save your money if you're
running 100LL.
Mark S.
On Mon, Aug 29,
2011 at 3:19 PM, David Leonard <wdleonard@gmail.com> wrote:
Thanks Bobby,
What number are you looking for for mixture?
On Mon, Aug 29,
2011 at 7:24 AM, Bobby J. Hughes <bhughes@qnsi.net> wrote:
David,
Where are you injecting the water?
I am injecting into the plenum just before the throttle body and after the
intercooler.
Here are the few facts I think
I know about water injections.
- Water is better for detonation
prevention than an alcohol mix.
- Alcohol mixture allows timing
advance and more HP.
Those are
contradictory points. For, what is it that allows more timing advance
other than prevention of detonation. I think you mean that water is
better at cooling, but alcohols make up for it by providing an apparent
increase in fuel octane as well as cooling.
- Injection in the intake some
distance before the engine block = more cooling.
- Injection at the block = better
detonation margin.
what is the
purpose of cooling other than improving detonation Margin?
- Windshield wiper fluid is a
good alternative to dealing with methanol. Usually about 40% alcohol.
Not in Southern California. They sell blue stuff but I
cant find any rated below 20deg F (7%methanol). I even found one, a deep
blue color, going for $4/gal no less, that proudly proclaimed in big letters:
"Protects from freezing down to 32 degrees!"
Also a good wideband is very useful. http://www.jdmpartswholesale.com/product/plx-dm-5-wideband-o2-52mm-display-sm-afr-combo-black
It’s my most used instrument.
I Guess I should break down and get a WBO2 like the one you
linked. But that is an expensive sensor that I will probably burn out
with 100LL. Have you had any problems with 100LL?
--
David Leonard
Turbo Rotary RV-6 N4VY
http://N4VY.RotaryRoster.net
http://RotaryRoster.net
From: Rotary motors in aircraft
[mailto:flyrotary@lancaironline.net]
On Behalf Of David Leonard
Sent: Sunday, August 28, 2011
10:24 PM
To: Rotary
motors in aircraft
Subject: [FlyRotary] How to tune with ADI?
Ok, So I have
the new ADI system installed and working.... I think?
Some of you smart
racing guys probably have experience with ADI.
Most of the
instructions that come with tuning it are directed toward car guys that have
computers and knock sensors. All they do is turn the system on and the
computer allows more advance because I is not sensing any knock. The only
real advise I have so for for me is that I should be running just less than the
amount of ADI that it takes to bog down the engine. My system is a fixed
flow so I don't have much choice but it seems to be about right. If I use
straight water (which I did for initial testing), the engine bogs after about
10-15 seconds of ruining the ADI system. But when I uses a 50/50 mix of
water and denatured alcohol (too hard to find methanol around here, but close
enough) the engine does not bog.
So assuming my
amount of ADI injected is about right, now I am supposed to be able to lean to
better power and advance the timing a little. But how much? For the
last testing flight I was using EGT for lack of a better guide. When the
ADI comes on, my EGT drops by about 30 deg C, and there is a hint of roughness
to the engine. I can then lean a little and the roughness clears
up. For my test flight I leaned until my EFT came back up to where I
normally limit it (890 deg C). But if I then add 5 more inches of MAP,
there is still a hint of roughness even at 890 deg and I get the sense that it
wants to be leaned a little more. But I am afraid to do that... We are talking
45" MAP and 7300 RPM here (185 KTS indicated (Vne) and climbing at
500 fpm).
So here are my
questions:
Is EGT a useful
tool here, and does leaning to get the EGT back to 890 make any sense?
Since Methanol will
do such a good job at preventing detonation, is it safe to lean further toward
best power (peak EGT)? (note, that will be hard on the turbo... I need to
remember to bring the spare one to Reno)
How much advance
do you think i can add? I was previously ruining 5 deg ahead of
Tracy's
recommended initial set up. Can't give a number because the EC2
retards the timing with higher MAP's. How much, I have not heard. I
can easily add one deg at a time using Ed's EFI monitor. But without a
knock sensor am really in the blind.
--
David Leonard
Turbo Rotary RV-6 N4VY
http://N4VY.RotaryRoster.net
http://RotaryRoster.net
--
David Leonard
Turbo Rotary RV-6 N4VY
http://N4VY.RotaryRoster.net
http://RotaryRoster.net
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