Today's Message Index:
----------------------
1. 04:40 AM - Re: Fuel Injection 0-360 (John Mireley)
2. 05:07 AM - Re: copper gasket (Cy Galley)
3. 06:17 AM - Re: Fuel Injection 0-360 (Jim Combs)
4. 08:34 AM - Super charging a Mazda rotary conversion (John Burns)
5. 01:22 PM - Re: Super charging a Mazda rotary conversion (MLSRV6@aol.com)
6. 02:10 PM - Mazda rotary (Terry Watson)
7. 02:34 PM - Re: Super charging a Mazda rotary conversion (Tracy Crook)
8. 02:42 PM - Re: Fuel Injection 0-360 (Tracy Crook)
9. 03:11 PM - Re: Fuel Injection 0-360 (Tracy Crook)
10. 06:30 PM - Re: Mazda rotary (Tracy Crook)
11. 08:33 PM - Re: Front seal leaking. WHY? (Jim & Jeanette Oberst)
Message 1
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| Subject: | Re: Fuel Injection 0-360 |
--> Engines-List message posted by: John Mireley <mireley@pilot.msu.edu>
Tracy Crook wrote:
>
>In all honesty, it will probably take significant effort to get everything
>ready for a change like this but if you want to proceed, let me know if you
>have any other questions. Off-list would probably be better to avoid
>clogging the list up with EFI conversion trivia.
>
>All the best,
>Tracy
>
>
>
Why take it off list? It was pretty much dead before you guys started
this thread.
I'm interested in listening in.
John Mireley
Message 2
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| Subject: | Re: copper gasket |
--> Engines-List message posted by: "Cy Galley" <cgalley@qcbc.org>
YES!
Cy Galley, TC - Chair, Emergency Aircraft Repair, Oshkosh
Editor, EAA Safety Programs
cgalley@qcbc.org or experimenter@eaa.org
Always looking for articles for the Experimenter
----- Original Message -----
From: "Dave Ford" <dford@michweb.net>
Subject: Engines-List: copper gasket
> --> Engines-List message posted by: "Dave Ford" <dford@michweb.net>
>
> Ok, an elementary question--which side of the copper gasket goes to the
engine for my oil temp. sensor, flat copper or split/fiber side?
>
> Dave Ford
>
>
Message 3
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| Subject: | Re: Fuel Injection 0-360 |
--> Engines-List message posted by: "Jim Combs" <jimc@mail.infra-read.com>
I too would like to know how this goes. PLease keep the dialog on the
list.
I am interested in the Jabiru 8 cyl engine but would want to have it
be fuel injected with altitude compensation. Maybe this would be
suitable for this application as well.
Jim C
Message 4
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| Subject: | Super charging a Mazda rotary conversion |
--> Engines-List message posted by: John Burns <jgburns@comcast.net>
Does anyone have experience with super charging a Mazda rotary engine for an aircraft?
If yes, I'd like to have an email dialog on the subject.
I've decided that if stray away from the recommended (Lycoming) brand for my RV-7A,
I'll go with a super-charged Mazda rotary. Albuquerque summer density altitudes
at airport elevation are around 9,500 feet and I like to fly between 12,500
and 13,500 (DA = 15,000 to 17,000). I think it'd be a kick to leave the
Lycoming powered RV's in the dust while enjoying the economy and mechanical reliability
of the rotary. I've already read Tracy's book and investigated the
challenges for a normally aspirated installation - it'd be great to learn from
someone else's super charging experiences. By the way, I'd prefer not to get
into the turbo verses super charging debate. As far as I'm concerned it sounds
like 'six to one, half a dozen to another' regarding tradeoffs.
Message 5
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| Subject: | Re: Super charging a Mazda rotary conversion |
--> Engines-List message posted by: MLSRV6@aol.com
I AM ALSO BUILDING A RV-6 AND I WOULD LIKE TO FIND OUT IF IT WOULD BE WORTH
THE MONEY TO INSTALL A SUPER CHARGER ....THE WEIGHT ....HORSEPOWER .....WHAT
EVER...
Message 6
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--> Engines-List message posted by: "Terry Watson" <terry@tcwatson.com>
Tracy, or anyone else:
What is the aircraft conversion potential of the new higher-horsepower Mazda
rotary design that's going into the RX8? I understand it has substantially
more power than the 13B.
Terry
Message 7
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| Subject: | Re: Super charging a Mazda rotary conversion |
--> Engines-List message posted by: "Tracy Crook" <lors01@msn.com>
> --> Engines-List message posted by: John Burns <jgburns@comcast.net>
>
> Does anyone have experience with super charging a Mazda rotary engine for
an aircraft? If yes, I'd like to have an email dialog on the subject.
>
> I've decided that if stray away from the recommended (Lycoming) brand for
my RV-7A, I'll go with a super-charged Mazda rotary. Albuquerque summer
density altitudes at airport elevation are around 9,500 feet and I like to
fly between 12,500 and 13,500 (DA = 15,000 to 17,000). I think it'd be a
kick to leave the Lycoming powered RV's in the dust while enjoying the
economy and mechanical reliability of the rotary. I've already read Tracy's
book and investigated the challenges for a normally aspirated installation -
it'd be great to learn from someone else's super charging experiences. By
the way, I'd prefer not to get into the turbo verses super charging debate.
As far as I'm concerned it sounds like 'six to one, half a dozen to another'
regarding tradeoffs.
I agree with your accessment of turbo vs super. And using the supercharger
gets you away from all the potential problems associated with turbo in
aircraft. They are too numerous to go into in a short email.
Tom Jordan uses my EC2 EFI/Ignition controller and has a supercharged 13B in
his Limo-ez (modified Long-ez). Doesn't have much time on it yet because he
keeps modifying the landing gear (now has retracts) but it sure makes a lot
of power. He used an Eaton supercharger like the ones used on some Buick
3.8L V6s and the supercharged T birds. I'd probably go for something like a
Vortech centrifugal type myself. And I like the idea of being able to
switch it on or off as needed. Ever see the movie 'Mad Max'?
Anyway, the turbo version of the EC2 will handle up to 55" Hg of manifold
pressure regardless of whether it is a turbo or supercharger that supplies
the boost. The 13B running on boost would require the RD-1B (300 HP max)
reduction drive rather than the RD-1A used on normally aspirated 13Bs.
Tracy Crook
>
>
Message 8
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| Subject: | Re: Fuel Injection 0-360 |
--> Engines-List message posted by: "Tracy Crook" <lors01@msn.com>
> --> Engines-List message posted by: "Jim Combs" <jimc@mail.infra-read.com>
>
> I too would like to know how this goes. PLease keep the dialog on the
> list.
>
> I am interested in the Jabiru 8 cyl engine but would want to have it
> be fuel injected with altitude compensation. Maybe this would be
> suitable for this application as well.
>
> Jim C
Ok, we'll keep it on-list. I forgot to look where the message came from and
thought we were on the RV-List.
I'm willing to develop the EC2 software for any engine that the builder can
supply the required information on. Main thing I need is the ignition
triggering device specs. Most engines have something that I can use as-is
but others will require mounting an additional sensor. Anything using
points or mags will require an 'update'.
Tracy Crook
>
Message 9
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| Subject: | Re: Fuel Injection 0-360 |
--> Engines-List message posted by: "Tracy Crook" <lors01@msn.com>
> --> Engines-List message posted by: Livingston John W Civ ASC/ENFD
<John.Livingston@wpafb.af.mil>
>
> You might consider the timing modules that Jeff Rose uses for his
electronic ignition. They replace the mag and have a single output wire. I
do believe they are a simple hall effect device. Really nice looking. I have
to of these on my Lyc. replacing both mags with two Rose units.
>
> John
I agree, always best to use something off the shelf rather than reinvent the
wheel unless there is a good reason. Does anyone know the timing specs on
the Jeff Rose sensor/trigger? I would assume it is a 'Missing Pulse' type
if it only has one wire. Need to know how many pulses/revolution and what
position the missing pulse is in, i.e. , how many degrees BTDC on Cyl 1
does the missing pulse occure.
Wonder if Rose would mind selling the timing device for use on other
systems? I know of others in the same business who *do* mind.
Tracy Crook
Message 10
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| Subject: | Re: Mazda rotary |
--> Engines-List message posted by: "Tracy Crook" <lors01@msn.com>
> --> Engines-List message posted by: "Terry Watson" <terry@tcwatson.com>
>
> Tracy, or anyone else:
>
> What is the aircraft conversion potential of the new higher-horsepower
Mazda
> rotary design that's going into the RX8? I understand it has
substantially
> more power than the 13B.
>
> Terry
Potential is huge! engine & all systems weighing less than an O - 320 but
producing 250 HP. I am salivating at the thought of obtaining one. Only
problem is that they develop that 250 HP at 8500 - 9000 RPM. I am designing
a new version of my gear reduction drive (RD-1C) with a ratio of 2.85 : 1 to
use with this engine.
Tracy Crook
>
>
Message 11
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| Subject: | Re: Front seal leaking. WHY? |
--> Engines-List message posted by: "Jim & Jeanette Oberst" <joberst@cox-internet.com>
You may want to take a look at "Lycoming Nose Seal Leakage" on pages 92 to
94 or the Sky Ranch Engineering Manual. It may give you a few other ideas.
Jim Oberst.
----- Original Message -----
From: "flyseaplane" <flyseaplane@netzero.net>
Subject: Engines-List: Front seal leaking. WHY?
> --> Engines-List message posted by: "flyseaplane"
<flyseaplane@netzero.net>
>
> "Another possibility to consider is wear of the cam....."
>
> Ummmm.......shouldn't be. It's all new stuff (well, yellow tagged
re-manned,
> or whatever) and the engine was pickled properly after assembly and before
> storage three years ago.
> It has GOBS of power. Warp Drive said to set the prop at 10 degrees of
> pitch, I decided to go with 13 degrees to load the engine up harder to get
> the rings to seat in. It almost hit redline. I didn't have a spring scale
> tied on the tailwheel, but the amount of thrust produced during the test
run
> was unbelievable. I'm really curious to see how she flies.
> I really don't think it is the cam - the rings may not be seated yet, but
I
> still don't think that would cause the oil to seep out. I'll have some
time
> off tomorrow and I'll look everything over. Maybe pull the seal and have
> look at it.
>
> Thanks guys,
> Linc
>
>
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