Today's Message Index:
----------------------
1. 03:57 AM - yak 50 with electronic ignition (Jan Mevis)
2. 05:40 AM - Re: Housai cylinder bore diameter CJ6A (George Coy)
3. 06:05 AM - Re: yak 50 with electronic ignition (George Coy)
4. 10:43 AM - FW: Housai cylinder bore diameter CJ6A (George Coy)
5. 10:43 AM - FW: yak 50 with electronic ignition (George Coy)
6. 11:02 AM - Yak 55: Longwing winter cover (Epistaxis)
7. 11:39 AM - Re: Yak 55: Longwing winter cover (doug sapp)
8. 11:45 AM - Re: Yak 55: Longwing winter cover (Roger Kemp M.D.)
9. 11:49 AM - Re: yak 50 with electronic ignition (Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E)
10. 12:02 PM - Re: yak 50 with electronic ignition (DAVID STROUD)
11. 12:12 PM - Re: Yak 55: Longwing winter cover (Eric Wobschall)
12. 12:47 PM - Re: Yak 55: Longwing winter cover (A. Dennis Savarese)
13. 12:54 PM - Cowl mount bushings and more (Cpayne)
14. 01:55 PM - Re: yak 50 with electronic ignition (Didier Blouzard)
15. 05:02 PM - Re: yak 50 with electronic ignition (bill wade)
Message 1
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| Subject: | yak 50 with electronic ignition |
Hi all,
Yesterday I did a first succesful test flight with an electronic ignition
system on my Yak 50 (with M14R engine, 29 hours since new).
The idea and concept belongs to Mark Bitterlich, who also helped me thru a
lot of technical details. Thanks, Mark! I am indebted to you!
I have replace the coil and the high tension lead from the right mag with a
multiple spark, capacitive discharge system. The original points and also
the distributor from the mag are left in place.
First results are very promising. There's a noticeable difference in RPM
between the left mag (unmodified, only 20 hours since new) and the
electronics on the right. Particularly at low RPM and with a still cold
engine, the difference is obvious: the electronics delivers a series of very
hot sparks per cylinder. That is, multiple sparks per time.
Of course much more test results are necessary in order to prove the
reliability of the system, but after several ground runs since weeks and now
finally a first test flight, I am rather confident.
Originally I also thought about replacing the coil on the left mag, but for
safety reasons (general power failure) Mark and I decided not doing this and
leaving the left mag unaltered. Although it should be possible when
installing an independent backup alternator system.
Furthermore the extra performance gain with a second electronic system would
probably be very marginal.
It is also obvious that this electronic system necessitated the plug wiring
kit from Dennis Savarese. It is out of the question using a > 45000 volt
system on the Russian solid core plug wires.
One of the main goals was to find out if there's a workable alternative for
the mag coils. This has been proven.
BR,
Jan Mevis
YK50 RA2005K
YK52 RA1453K
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| Subject: | Housai cylinder bore diameter CJ6A |
Paul, I cannot answer for the Housai engine, but the M14 dimensions' are as
follows:
Standard size cylinder is a straight bore Min 104.970 mm (4.132 in) and Max
is 105.030 mm (4.135 in)
First oversize is a straight bore of Min 105.12 mm (4.138 in) and Max of
105.18 mm (4.131 in ).
In both cases the max "Ovality" is .040 mm (.0016 in )
You will note that very little ware is permitted and the oversize rings are
only .006 oversize.
We offer both standard and oversize pistons with the modern rings.
George Coy
Motorstar NA
714 Airport Rd.
Swanton VT 05488
802-868-5633 off
802-363-5782 cell
george.coy@gmail.com
SKYPE george.coy
motorstarna.com
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| Subject: | yak 50 with electronic ignition |
It sounds interesting. We developed an electronic mag several years ago and
are waiting for someone to do the test flying. It worked well on the test
stand. They claimed easier starts, much more stable operations. We gave it
to an individual for flight test and they never installed it. We finally got
it back.
It is basically the same thing as you describe. We took a regular
mag, had a reluctor wheel machined to replace the cam and used a Toyota
magnetic pick up. It then uses the standard GM ignition module and a Toyota
coil is installed in the base of the magneto case. It uses the regular rotor
and cap. The result is a 12 volt electronic magneto that is a drop in
replacement for the M9 magneto.
It sounds like you have a multiple coil system and it could
benefit from the reluctor wheel and magnetic pick up. Contact me off list
and I can supply the parts to replace the cam and points.
We are also developing a true electronic system with multiple
coils and a micro processor to do the timing. The hardware is done and the
software is now being tested. It has been a slow process and has to fit in
the available time. It has the advantage in that it allows different timing
depending on multiple variables. (RPM, temperature, fuel octane, manifold
pressure etc.). It is also a step to an electronic fuel injection system.
George Coy
Motorstar NA
714 Airport Rd.
Swanton VT 05488
802-868-5633 off
802-363-5782 cell
george.coy@gmail.com
SKYPE george.coy
motorstarna.com
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Jan Mevis
Sent: Tuesday, January 11, 2011 6:55 AM
Subject: Yak-List: yak 50 with electronic ignition
Hi all,
Yesterday I did a first succesful test flight with an electronic ignition
system on my Yak 50 (with M14R engine, 29 hours since new).
The idea and concept belongs to Mark Bitterlich, who also helped me thru a
lot of technical details. Thanks, Mark! I am indebted to you!
I have replace the coil and the high tension lead from the right mag with a
multiple spark, capacitive discharge system. The original points and also
the distributor from the mag are left in place.
First results are very promising. There's a noticeable difference in RPM
between the left mag (unmodified, only 20 hours since new) and the
electronics on the right. Particularly at low RPM and with a still cold
engine, the difference is obvious: the electronics delivers a series of very
hot sparks per cylinder. That is, multiple sparks per time.
Of course much more test results are necessary in order to prove the
reliability of the system, but after several ground runs since weeks and now
finally a first test flight, I am rather confident.
Originally I also thought about replacing the coil on the left mag, but for
safety reasons (general power failure) Mark and I decided not doing this and
leaving the left mag unaltered. Although it should be possible when
installing an independent backup alternator system.
Furthermore the extra performance gain with a second electronic system would
probably be very marginal.
It is also obvious that this electronic system necessitated the plug wiring
kit from Dennis Savarese. It is out of the question using a > 45000 volt
system on the Russian solid core plug wires.
One of the main goals was to find out if there's a workable alternative for
the mag coils. This has been proven.
BR,
Jan Mevis
YK50 RA2005K
YK52 RA1453K
Message 4
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| Subject: | Housai cylinder bore diameter CJ6A |
Paul, I cannot answer for the Housai engine, but the M14 dimensions' are as
follows:
Standard size cylinder is a straight bore Min 104.970 mm (4.132 in) and Max
is 105.030 mm (4.135 in)
First oversize is a straight bore of Min 105.12 mm (4.138 in) and Max of
105.18 mm (4.131 in ).
In both cases the max "Ovality" is .040 mm (.0016 in )
You will note that very little ware is permitted and the oversize rings are
only .006 oversize.
We offer both standard and oversize pistons with the modern rings.
George Coy
Motorstar NA
714 Airport Rd.
Swanton VT 05488
802-868-5633 off
802-363-5782 cell
george.coy@gmail.com
SKYPE george.coy
motorstarna.com
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| Subject: | yak 50 with electronic ignition |
It sounds interesting. We developed an electronic mag several years ago and
are waiting for someone to do the test flying. It worked well on the test
stand. They claimed easier starts, much more stable operations. We gave it
to an individual for flight test and they never installed it. We finally got
it back.
It is basically the same thing as you describe. We took a regular
mag, had a reluctor wheel machined to replace the cam and used a Toyota
magnetic pick up. It then uses the standard GM ignition module and a Toyota
coil is installed in the base of the magneto case. It uses the regular rotor
and cap. The result is a 12 volt electronic magneto that is a drop in
replacement for the M9 magneto.
It sounds like you have a multiple coil system and it could
benefit from the reluctor wheel and magnetic pick up. Contact me off list
and I can supply the parts to replace the cam and points.
We are also developing a true electronic system with multiple
coils and a micro processor to do the timing. The hardware is done and the
software is now being tested. It has been a slow process and has to fit in
the available time. It has the advantage in that it allows different timing
depending on multiple variables. (RPM, temperature, fuel octane, manifold
pressure etc.). It is also a step to an electronic fuel injection system.
George Coy
Motorstar NA
714 Airport Rd.
Swanton VT 05488
802-868-5633 off
802-363-5782 cell
george.coy@gmail.com
SKYPE george.coy
motorstarna.com
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Jan Mevis
Sent: Tuesday, January 11, 2011 6:55 AM
Subject: Yak-List: yak 50 with electronic ignition
Hi all,
Yesterday I did a first succesful test flight with an electronic ignition
system on my Yak 50 (with M14R engine, 29 hours since new).
The idea and concept belongs to Mark Bitterlich, who also helped me thru a
lot of technical details. Thanks, Mark! I am indebted to you!
I have replace the coil and the high tension lead from the right mag with a
multiple spark, capacitive discharge system. The original points and also
the distributor from the mag are left in place.
First results are very promising. There's a noticeable difference in RPM
between the left mag (unmodified, only 20 hours since new) and the
electronics on the right. Particularly at low RPM and with a still cold
engine, the difference is obvious: the electronics delivers a series of very
hot sparks per cylinder. That is, multiple sparks per time.
Of course much more test results are necessary in order to prove the
reliability of the system, but after several ground runs since weeks and now
finally a first test flight, I am rather confident.
Originally I also thought about replacing the coil on the left mag, but for
safety reasons (general power failure) Mark and I decided not doing this and
leaving the left mag unaltered. Although it should be possible when
installing an independent backup alternator system.
Furthermore the extra performance gain with a second electronic system would
probably be very marginal.
It is also obvious that this electronic system necessitated the plug wiring
kit from Dennis Savarese. It is out of the question using a > 45000 volt
system on the Russian solid core plug wires.
One of the main goals was to find out if there's a workable alternative for
the mag coils. This has been proven.
BR,
Jan Mevis
YK50 RA2005K
YK52 RA1453K
Message 6
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| Subject: | Yak 55: Longwing winter cover |
I would like to purchase a complete OEM Russian set of covers for a Yak 55 long
wing. I`m also looking for a Russian topdead center indicator as would be found
in the M14p tool kit. Please let me know off line if you have one or the other
and would like to sell... Thanks
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=326550#326550
Message 7
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| Subject: | Re: Yak 55: Longwing winter cover |
Shawn,
I carry the insulated engine cover/wraps in stock, Will fit all Yaks, CJ's
etc. Contact off list please.
Best,
Doug
On Tue, Jan 11, 2011 at 11:00 AM, Epistaxis <ShawnJBurwell@aol.com> wrote:
>
> I would like to purchase a complete OEM Russian set of covers for a Yak 55
> long wing. I`m also looking for a Russian topdead center indicator as would
> be found in the M14p tool kit. Please let me know off line if you have one
> or the other and would like to sell... Thanks
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=326550#326550
>
>
Message 8
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| Subject: | Re: Yak 55: Longwing winter cover |
Contact West London Aeroclub for TDC gauge.
Doc
Sent from my iPad
On Jan 11, 2011, at 1:00 PM, "Epistaxis" <ShawnJBurwell@aol.com> wrote:
>
> I would like to purchase a complete OEM Russian set of covers for a Yak 55 long
wing. I`m also looking for a Russian topdead center indicator as would be found
in the M14p tool kit. Please let me know off line if you have one or the
other and would like to sell... Thanks
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=326550#326550
>
>
>
>
>
>
>
>
>
>
Message 9
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| Subject: | yak 50 with electronic ignition |
George,
We (actually Jan) are not using a multiple coil array, but instead a
single (external) coil. The coil is fired by an MSD system, as
described to the list in a previous posting. The design would indeed
benefit from either a Hall Effect sensor, or some other form of "points"
replacement, but it was decided not to do this at first, but to instead
just go with a proof of concept test.
The plus side of this approach is that the Russian Mag (right side,
lower plugs) is left relatively intact. Jan has designed a replacement
for the original cigarette shaft, and just the coil has been removed.
Thus, this design remains as a truly "field installable" package.
Sounds like I am selling this thing, but actually not.
In any case, the only thing that the points do now is to provide a
trigger for the electronics package. The advantage of keeping the
points is that you can still do some sort of "relative" timing to the
other mag using points closure as your comparison. The points will
never erode or pit, since there is no high current demand on them
anymore. However, mechanical failure is of course still possible, and
the accuracy of point triggers are obviously not nearly as accurate as
magnetic or hall effect sensors.
The beauty of this design George, is that it is cheap, it is easily
available right now and the only 12 volt signal needed is a low current
turn on voltage. The rest of the whole design is being run directly off
of 28 VDC, so no conversion of the original design of the electrical
system is necessary. The electronic ignition is currently being run off
a B&C small alternator, with the aircraft battery as backup, and as
backup to that, there is of course the original left mag.
The design has provisions to add retarded timing for starting. When
that is added, the engine can be started on either the original system,
or the electronic system on the right mag. Thus you now have backup
starting ignition as well.
Your package sounds much more modern and obviously has great potential.
The design I came up with here, is very cheap, and should be extremely
reliable, and already has obvious gains at idle and with starting.
I still can't believe that Jan trusted me enough to put this design into
an M-14R engine. However, that engine also has a lot to gain from a
Multiple Spark Capacitive Discharge ignition system. In any case, Jan
really did it right and did not spare a nickel to do a really
professional installation. I believe he is taking pictures to document
everything.
The timing on this design is also variable should that be necessary, but
not nearly as complete as what you are discussing. Obviously, it would
be wonderful to have a complete package such as you are describing, but
for right now... this has some interesting potential, especially
considering price.
Lastly, in case anyone is thinking otherwise, this is not the Mark
Bitterlich ignition system, available with only a slight markup from my
new company. (Big Smile). As I said before, I am giving this design
away to anyone who needs it. Jan Mevis was generous enough to offer
flight testing on a VERY rare, expensive, and (almost) one of a kind
engine, and for this we should all be very grateful.
Mark Bitterlich
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of George Coy
Sent: Tuesday, January 11, 2011 1:39 PM
Subject: FW: Yak-List: yak 50 with electronic ignition
It sounds interesting. We developed an electronic mag several years ago
and are waiting for someone to do the test flying. It worked well on the
test stand. They claimed easier starts, much more stable operations. We
gave it to an individual for flight test and they never installed it. We
finally got it back.
It is basically the same thing as you describe. We took a
regular mag, had a reluctor wheel machined to replace the cam and used a
Toyota magnetic pick up. It then uses the standard GM ignition module
and a Toyota coil is installed in the base of the magneto case. It uses
the regular rotor and cap. The result is a 12 volt electronic magneto
that is a drop in replacement for the M9 magneto.
It sounds like you have a multiple coil system and it could
benefit from the reluctor wheel and magnetic pick up. Contact me off
list and I can supply the parts to replace the cam and points.
We are also developing a true electronic system with multiple
coils and a micro processor to do the timing. The hardware is done and
the software is now being tested. It has been a slow process and has to
fit in the available time. It has the advantage in that it allows
different timing depending on multiple variables. (RPM, temperature,
fuel octane, manifold pressure etc.). It is also a step to an electronic
fuel injection system.
George Coy
Motorstar NA
714 Airport Rd.
Swanton VT 05488
802-868-5633 off
802-363-5782 cell
george.coy@gmail.com
SKYPE george.coy
motorstarna.com
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Jan Mevis
Sent: Tuesday, January 11, 2011 6:55 AM
Subject: Yak-List: yak 50 with electronic ignition
Hi all,
Yesterday I did a first succesful test flight with an electronic
ignition system on my Yak 50 (with M14R engine, 29 hours since new).
The idea and concept belongs to Mark Bitterlich, who also helped me
thru a lot of technical details. Thanks, Mark! I am indebted to you!
I have replace the coil and the high tension lead from the right mag
with a multiple spark, capacitive discharge system. The original points
and also the distributor from the mag are left in place.
First results are very promising. There's a noticeable difference in RPM
between the left mag (unmodified, only 20 hours since new) and the
electronics on the right. Particularly at low RPM and with a still cold
engine, the difference is obvious: the electronics delivers a series of
very hot sparks per cylinder. That is, multiple sparks per time.
Of course much more test results are necessary in order to prove the
reliability of the system, but after several ground runs since weeks and
now finally a first test flight, I am rather confident.
Originally I also thought about replacing the coil on the left mag, but
for safety reasons (general power failure) Mark and I decided not doing
this and leaving the left mag unaltered. Although it should be possible
when installing an independent backup alternator system.
Furthermore the extra performance gain with a second electronic system
would probably be very marginal.
It is also obvious that this electronic system necessitated the plug
wiring kit from Dennis Savarese. It is out of the question using a >
45000 volt system on the Russian solid core plug wires.
One of the main goals was to find out if there's a workable alternative
for the mag coils. This has been proven.
BR,
Jan Mevis
YK50 RA2005K
YK52 RA1453K
http://www.matronics.com/Navigator?Yak-List
http://forums.matronics.com
http://www.matronics.com/contribution
Message 10
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| Subject: | Re: yak 50 with electronic ignition |
Giday, George. I've done the same process you describe years ago with
Subaru engines in smaller planes. It works very well. I developed the
same system for a Corvair
engine using a Ford, slightly machined down reluctor with equal success.
I was looking into my Housai mags to see if that system would work well
too but didn't have
much time to continue development last year. It struck me though, that a
lobe reading pickup might be able to read directly from the existing cam
on the Housai mag eliminating
the need for a new, machined reluctor. I do note that the cam lobes are
not very well defined due to there being nine of them on a small
diameter. Any thoughts ?
David Stroud Ottawa, Canada
Christavia C-FDWS
Fairchild 51 replica
under construction C-FYXV
----- Original Message -----
From: George Coy
To: yak-list@matronics.com
Sent: Tuesday, January 11, 2011 1:38 PM
Subject: FW: Yak-List: yak 50 with electronic ignition
It sounds interesting. We developed an electronic mag several years
ago and are waiting for someone to do the test flying. It worked well on
the test stand. They claimed easier starts, much more stable operations.
We gave it to an individual for flight test and they never installed it.
We finally got it back.
It is basically the same thing as you describe. We took a
regular mag, had a reluctor wheel machined to replace the cam and used a
Toyota magnetic pick up. It then uses the standard GM ignition module
and a Toyota coil is installed in the base of the magneto case. It uses
the regular rotor and cap. The result is a 12 volt electronic magneto
that is a drop in replacement for the M9 magneto.
It sounds like you have a multiple coil system and it could
benefit from the reluctor wheel and magnetic pick up. Contact me off
list and I can supply the parts to replace the cam and points.
We are also developing a true electronic system with
multiple coils and a micro processor to do the timing. The hardware is
done and the software is now being tested. It has been a slow process
and has to fit in the available time. It has the advantage in that it
allows different timing depending on multiple variables. (RPM,
temperature, fuel octane, manifold pressure etc.). It is also a step to
an electronic fuel injection system.
George Coy
Motorstar NA
714 Airport Rd.
Swanton VT 05488
802-868-5633 off
802-363-5782 cell
george.coy@gmail.com
SKYPE george.coy
motorstarna.com
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Jan Mevis
Sent: Tuesday, January 11, 2011 6:55 AM
To: yak-list@matronics.com
Subject: Yak-List: yak 50 with electronic ignition
Hi all,
Yesterday I did a first succesful test flight with an electronic
ignition system on my Yak 50 (with M14R engine, 29 hours since new).
The idea and concept belongs to Mark Bitterlich, who also helped me
thru a lot of technical details. Thanks, Mark! I am indebted to you!
I have replace the coil and the high tension lead from the right mag
with a multiple spark, capacitive discharge system. The original points
and also the distributor from the mag are left in place.
First results are very promising. There's a noticeable difference in
RPM between the left mag (unmodified, only 20 hours since new) and the
electronics on the right. Particularly at low RPM and with a still cold
engine, the difference is obvious: the electronics delivers a series of
very hot sparks per cylinder. That is, multiple sparks per time.
Of course much more test results are necessary in order to prove the
reliability of the system, but after several ground runs since weeks and
now finally a first test flight, I am rather confident.
Originally I also thought about replacing the coil on the left mag,
but for safety reasons (general power failure) Mark and I decided not
doing this and leaving the left mag unaltered. Although it should be
possible when installing an independent backup alternator system.
Furthermore the extra performance gain with a second electronic system
would probably be very marginal.
It is also obvious that this electronic system necessitated the plug
wiring kit from Dennis Savarese. It is out of the question using a >
45000 volt system on the Russian solid core plug wires.
One of the main goals was to find out if there's a workable
alternative for the mag coils. This has been proven.
BR,
Jan Mevis
YK50 RA2005K
YK52 RA1453K
http://www.matronics.com/Navigator?Yak-Listhttp://forums.matronics.comhtt
p://www.matronics.com/contribution
-------------------------------------------------------------------------
-----
Checked by AVG - www.avg.com
01/10/11 07:34:00
Message 11
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| Subject: | Re: Yak 55: Longwing winter cover |
Hey, Doug, I forgot to thank you for that cover you sent. It's working
out great. -Eric
On Jan 11, 2011, at 2:30 PM, doug sapp wrote:
> Shawn,
> I carry the insulated engine cover/wraps in stock, Will fit all Yaks,
CJ's etc. Contact off list please.
>
> Best,
> Doug
>
> On Tue, Jan 11, 2011 at 11:00 AM, Epistaxis <ShawnJBurwell@aol.com>
wrote:
>
> I would like to purchase a complete OEM Russian set of covers for a
Yak 55 long wing. I`m also looking for a Russian topdead center
indicator as would be found in the M14p tool kit. Please let me know
off line if you have one or the other and would like to sell... Thanks
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=326550#326550
>
>
>
>
>
>
>
> ==========
> rget="_blank">http://www.matronics.com/Navigator?Yak-List
> ==========
> http://forums.matronics.com
> ==========
> le, List Admin.
> ="_blank">http://www.matronics.com/contribution
> ==========
>
>
>
>
>
>
>
Message 12
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|
| Subject: | Re: Yak 55: Longwing winter cover |
Be VERY careful using the Russian TDC gauge. I have had 2 jam inside
the cylinder and had to cut the gauge off just above the spark plug hole
to release the hook end of the gauge that touches the top of the piston.
Only then was I able to unscrew the bottom section of the gauge. The
problem is the poor manufacturing quality of the gauge. The slide
mechanism was binding and when it bound inside the cylinder, I hoped and
prayed that by cutting it off with a Dremel tool, I would be able to
remove the bottom section and not have to pull the cylinder.
I no longer use the Russian TDC instruments for this reason. I don't
want to try for 3.
Dennis
On 1/11/2011 1:41 PM, Roger Kemp M.D. wrote:
> --> Yak-List message posted by: "Roger Kemp M.D."<viperdoc@mindspring.com>
>
> Contact West London Aeroclub for TDC gauge.
> Doc
>
> Sent from my iPad
>
> On Jan 11, 2011, at 1:00 PM, "Epistaxis"<ShawnJBurwell@aol.com> wrote:
>
>> --> Yak-List message posted by: "Epistaxis"<ShawnJBurwell@aol.com>
>>
>> I would like to purchase a complete OEM Russian set of covers for a Yak 55 long
wing. I`m also looking for a Russian topdead center indicator as would be
found in the M14p tool kit. Please let me know off line if you have one or the
other and would like to sell... Thanks
>>
>>
>>
>>
>> Read this topic online here:
>>
>> http://forums.matronics.com/viewtopic.php?p=326550#326550
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
--
A. Dennis Savarese
334-285-2141
334-546-8182 (cell)
Skype: Yakguy1
www.yak-52.com
Message 13
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| Subject: | Cowl mount bushings and more |
I am now offering press-in cowling mount "donuts" with bushings. These are replacements
for older-style CJ-6 press fit items. After years of making them for
myself, I spent some time making a pile of scrap until I figured out a way to
manufacture them without a lot of waste. They are made from Neoprene (shoe heel
material) with steel bushing stock.
They will NOT fit the newer, and better, screw-in items. I consider them as wear
items as they soak up a lot of vibration, as well as carry the cowling loads.
Approximate diameter is 1" and 15/32" wide.
See my web site for Pics and Prices: http://home.joimail.com/~cpayne1/redstarwarbirdspecialties/
Once more I have "formation mirrors", helpful for watching your GIB or wingmen.
Craig Payne
Message 14
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| Subject: | Re: yak 50 with electronic ignition |
Hi George, Hi Jan,
BRAVO and congratulation Jan and thanks to you and Mark. This sounds really
promissing and I must say that with all that mind power I am not any more
worried about the future of our planes and motors.
Reading your mail Mark it is a pitty that nobody wanted to test your mag.
I
would love to test it on my M14P with certainly the help of Jan (Jan???) to
set it up.
Do you think it could be of any use???
If yes then I would be very enthousiastic about that testing...
best regards from Paris - France (1h from NAMUR!!!)
Didier
2011/1/11 George Coy <george.coy@gmail.com>
> It sounds interesting. We developed an electronic mag several years ago a
nd
> are waiting for someone to do the test flying. It worked well on the test
> stand. They claimed easier starts, much more stable operations. We gave i
t
> to an individual for flight test and they never installed it. We finally
got
> it back.
>
> It is basically the same thing as you describe. We took a regul
ar
> mag, had a reluctor wheel machined to replace the cam and used a Toyota
> magnetic pick up. It then uses the standard GM ignition module and a Toyo
ta
> coil is installed in the base of the magneto case. It uses the regular ro
tor
> and cap. The result is a 12 volt electronic magneto that is a drop in
> replacement for the M9 magneto.
>
> It sounds like you have a multiple coil system and it could
> benefit from the reluctor wheel and magnetic pick up. Contact me off list
> and I can supply the parts to replace the cam and points.
>
> We are also developing a true electronic system with multiple
> coils and a micro processor to do the timing. The hardware is done and th
e
> software is now being tested. It has been a slow process and has to fit i
n
> the available time. It has the advantage in that it allows different timi
ng
> depending on multiple variables. (RPM, temperature, fuel octane, manifold
> pressure etc.). It is also a step to an electronic fuel injection system.
>
>
> George Coy
>
>
> Motorstar NA
>
> 714 Airport Rd.
>
> Swanton VT 05488
>
> 802-868-5633 off
>
> 802-363-5782 cell
>
> george.coy@gmail.com
>
> SKYPE george.coy
>
> motorstarna.com
>
>
> *From:* owner-yak-list-server@matronics.com [mailto:
> owner-yak-list-server@matronics.com] *On Behalf Of *Jan Mevis
> *Sent:* Tuesday, January 11, 2011 6:55 AM
> *To:* yak-list@matronics.com
> *Subject:* Yak-List: yak 50 with electronic ignition
>
>
> Hi all,
>
>
> Yesterday I did a first succesful test flight with an electronic ignition
> system on my Yak 50 (with M14R engine, 29 hours since new).
>
>
> The idea and concept belongs to Mark Bitterlich, who also helped me thru
a
> lot of technical details. Thanks, Mark! I am indebted to you!
>
>
> I have replace the coil and the high tension lead from the right mag with
a
> multiple spark, capacitive discharge system. The original points and also
> the distributor from the mag are left in place.
>
>
> First results are very promising. There=92s a noticeable difference in RP
M
> between the left mag (unmodified, only 20 hours since new) and the
> electronics on the right. Particularly at low RPM and with a still cold
> engine, the difference is obvious: the electronics delivers a series of v
ery
> hot sparks per cylinder. That is, multiple sparks per time.
>
>
> Of course much more test results are necessary in order to prove the
> reliability of the system, but after several ground runs since weeks and
now
> finally a first test flight, I am rather confident.
>
>
> Originally I also thought about replacing the coil on the left mag, but f
or
> safety reasons (general power failure) Mark and I decided not doing this
and
> leaving the left mag unaltered. Although it should be possible when
> installing an independent backup alternator system.
>
>
> Furthermore the extra performance gain with a second electronic system
> would probably be very marginal.
>
>
> It is also obvious that this electronic system necessitated the plug wiri
ng
> kit from Dennis Savarese. It is out of the question using a > 45000 volt
> system on the Russian solid core plug wires.
>
>
> One of the main goals was to find out if there=92s a workable alternative
for
> the mag coils. This has been proven.
>
>
> BR,
>
>
> Jan Mevis
>
> YK50 RA2005K
>
> YK52 RA1453K
>
>
> * *
>
> * *
>
> **
>
> **
>
> **
>
> **
>
> **
>
> **
>
> *http://www.matronics.com/Navigator?Yak-List*
>
> **
>
> **
>
> **
>
> *http://forums.matronics.com*
>
> **
>
> **
>
> **
>
> **
>
> *http://www.matronics.com/contribution*
>
> **
>
> * *
>
> *
>
===========
===========
===========
===========
> *
>
>
--
Didier BLOUZARD
didier.blouzard@gmail.com
0624243672
Message 15
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| Subject: | Re: yak 50 with electronic ignition |
Hay guys and gals lets kick it up a notch. Due you think we could leave the
=0Acarburetor on an M14 just turn the fuel off to it=C2-and use it as a
backup and a =0Aplace to mount the throttle position unit until were comfy
with EFI take a bunch =0Aof lower intake tubes=C2-and put=C2-electronic
fuel injectors in them and coil over =0Aplug ignition with a programmable
electronic control unit? SAWEEEET=0A=0ABill Wade=0A=0AProgrammable ECUs =0A
A special category of ECUs are those which are programmable. These units do
not =0Ahave a fixed behavior, but can be reprogrammed by the user.=0AProgr
ammable ECUs are required where significant aftermarket modifications have
=0Abeen made to a vehicle's engine. Examples include adding or changing of
a =0Aturbocharger, adding or changing of an intercooler, changing of the ex
haust =0Asystem, and conversion to run on alternative fuel. As a consequenc
e of these =0Achanges, the old ECU may not provide appropriate control for
the new =0Aconfiguration. In these situations, a programmable ECU can be wi
red in. These =0Acan be programmed/mapped with a laptop connected using a s
erial or USB cable, =0Awhile the engine is running.=0AThe programmable ECU
may control the amount of fuel to be injected into each =0Acylinder. This v
aries depending on the engine's RPM and the position of the =0Aaccelerator
pedal (or the manifold air pressure). The engine tuner can adjust =0Athis b
y bringing up a spreadsheet-like page on the laptop where each cell =0Arepr
esents an intersection between a specific RPM value and an accelerator peda
l =0Aposition (or the throttle position, as it is called). In this cell a n
umber =0Acorresponding to the amount of fuel to be injected is entered. Thi
s spreadsheet =0Ais often referred to as a fuel table or fuel map.=0ABy mod
ifying these values while monitoring the exhausts using a wide band lambda
=0Aprobe to see if the engine runs rich or lean, the tuner can find the opt
imal =0Aamount of fuel to inject to the engine at every different combinati
on of RPM and =0Athrottle position. This process is often carried out at a
dynamometer, giving =0Athe tuner a controlled environment to work in. An en
gine dynamometer gives a =0Amore precise calibration for racing application
s. Tuners often utilize a chassis =0Adynamometer for street and other high
performance applications.=0AOther parameters that are often mappable are:
=0A* Ignition: Defines when the spark plug should fire for a cylinder.
=0A* Rev. limit: Defines the maximum RPM that the engine is allowed to r
each. =0AAfter this fuel and/or ignition is cut. Some vehicles have a "soft
" cut-off =0Abefore the "hard" cut-off.=0A* Water temperature correction
: Allows for additional fuel to be added when the =0Aengine is cold (choke)
or dangerously hot.=0A* Transient fueling: Tells the ECU to add a speci
fic amount of fuel when =0Athrottle is applied. The term is "acceleration e
nrichment"=0A* Low fuel pressure modifier: Tells the ECU to increase the
injector fire time =0Ato compensate for a loss of fuel pressure.=0A* Cl
osed loop lambda: Lets the ECU monitor a permanently installed lambda probe
=0Aand modify the fueling to achieve stoichiometric (ideal) combustion. On
=0Atraditional petrol powered vehicles this air:fuel ratio is 14.7:1.=0ASo
me of the more advanced race ECUs include functionality such as launch =0Ac
ontrol, limiting the power of the engine in first gear to avoid burnouts. O
ther =0Aexamples of advanced functions are:=0A* Wastegate control: Sets
up the behavior of a turbocharger's wastegate, =0Acontrolling boost.=0A*
Banked injection: Sets up the behavior of double injectors per cylinder, u
sed =0Ato get a finer fuel injection control and atomization over a wide RP
M range.=0A* Variable cam timing: Tells the ECU how to control variable
intake and exhaust =0Acams.=0A* Gear control: Tells the ECU to cut ignit
ion during (sequential gearbox) =0Aupshifts or blip the throttle during dow
nshifts.=0AA race ECU is often equipped with a data logger recording all se
nsors for later =0Aanalysis using special software in a PC. This can be use
ful to track down engine =0Astalls, misfires or other undesired behaviors d
uring a race by downloading the =0Alog data and looking for anomalies after
the event. The data logger usually has =0Aa capacity between 0.5 and 16 me
gabytes.=0AIn order to communicate with the driver, a race ECU can often be
connected to a =0A"data stack", which is a simple dash board presenting th
e driver with the =0Acurrent RPM, speed and other basic engine data. These
race stacks, which are =0Aalmost always digital, talk to the ECU using one
of several proprietary =0Aprotocols running over RS232 or CANbus, connectin
g to the DLC connector (Data =0ALink Connector) usually located on the unde
rside of the dash, inline with the =0Asteering wheel=0A=0A=0A______________
__________________=0AFrom: Didier Blouzard <didier.blouzard@gmail.com>=0ATo
: yak-list@matronics.com=0ASent: Tue, January 11, 2011 4:51:49 PM=0ASubject
: Re: Yak-List: yak 50 with electronic ignition=0A=0AHi George, Hi Jan,=0A
=0ABRAVO and congratulation Jan and thanks to you and Mark. This sounds rea
lly =0Apromissing and I must say that with all that mind power I am not any
more =0Aworried about the future of our planes and motors.=0A=0AReading yo
ur mail Mark it is a pitty that nobody wanted to test your mag.=C2- I =0A
would love to test it on my M14P with certainly the help of Jan (Jan???) to
set =0Ait up.=0A=0ADo you think it could be of any use???=0A=0AIf yes then
I would be very enthousiastic about that testing...=0A=0Abest regards from
Paris - France (1h from NAMUR!!!)=0A=0ADidier=0A=0A=0A=0A=0A=0A2011/1/11 G
eorge Coy <george.coy@gmail.com>=0A=0AIt sounds interesting. We developed a
n electronic mag several years ago and are =0Awaiting for someone to do the
test flying. It worked well on the test stand. =0AThey claimed easier star
ts, much more stable operations. We gave it to an =0Aindividual for flight
test and they never installed it. We finally got it back. =0A=0A>=C2-=C2
-=C2-=C2-=C2-=C2-=C2-=C2-=C2- It is basically the same thin
g as you describe. We took a regular mag, =0A>had a reluctor wheel machined
to replace the cam and used a Toyota magnetic pick =0A>up. It then uses th
e standard GM ignition module and a Toyota coil is installed =0A>in the bas
e of the magneto case. It uses the regular rotor and cap. The result =0A>is
a 12 volt electronic magneto that is a drop in replacement for the M9 =0A>
magneto. =0A>=0A>=C2-=C2-=C2-=C2-=C2-=C2-=C2-=C2-=C2- It
sounds like you have a multiple coil system and it could benefit =0A>from t
he reluctor wheel and magnetic pick up. Contact me off list and I can =0A>s
upply the parts to replace the cam and points. =0A>=0A>=C2-=C2-=C2-
=C2-=C2-=C2-=C2-=C2-=C2- We are also developing a true electron
ic system with multiple coils =0A>and a micro processor to do the timing. T
he hardware is done and the software is =0A>now being tested. It has been a
slow process and has to fit in the available =0A>time. It has the advantag
e in that it allows different timing depending on =0A>multiple variables. (
RPM, temperature, fuel octane, manifold pressure etc.). It =0A>is also a st
ep to an electronic fuel injection system. =0A>=0A>=C2-=0A>=C2-=0A>Geor
ge Coy=0A>=C2-=0A>Motorstar NA=0A>714 Airport Rd.=0A>Swanton VT 05488=0A>
802-868-5633 off=0A>802-363-5782 cell=0A>george.coy@gmail.com=0A>SKYPE geor
ge.coy=0A>motorstarna.com=0A>=C2-=0A>=C2-=0A>=C2-=0A>=C2-=0A>From:o
wner-yak-list-server@matronics.com =0A>[mailto:owner-yak-list-server@matron
ics.com] On Behalf Of Jan Mevis=0A>Sent: Tuesday, January 11, 2011 6:55 AM
=0A>To: yak-list@matronics.com=0A>Subject: Yak-List: yak 50 with electronic
ignition=0A>=C2-=0A>Hi all,=0A>=C2-=0A>Yesterday I did a first succesf
ul test flight with an electronic ignition system =0A>on my Yak 50 (with M1
4R engine, 29 hours since new).=0A>=C2-=0A>The idea and concept =C2-bel
ongs to Mark Bitterlich, who also helped me thru a lot =0A>of technical det
ails. Thanks, Mark! I am indebted to you!=0A>=C2-=0A>I have replace the c
oil and the high tension lead from the right mag with a =0A>multiple spark,
capacitive discharge system. The original points and also the =0A>distribu
tor from the mag are left in place.=0A>=C2-=0A>First results are very pro
mising. There=99s a noticeable difference in RPM between =0A>the left
mag (unmodified, only 20 hours since new) and the electronics on the =0A>r
ight. Particularly at low RPM and with a still cold engine, the difference
is =0A>obvious: the electronics delivers a series of very hot sparks per cy
linder. That =0A>is, multiple sparks per time.=0A>=C2-=0A>Of course much
more test results are necessary in order to prove the reliability =0A>of th
e system, but after several ground runs since weeks and now finally a first
=0A>test flight, I am rather confident.=0A>=C2-=0A>Originally I also tho
ught about replacing the coil on the left mag, but for =0A>safety reasons (
general power failure) Mark and I decided not doing this and =0A>leaving th
e left mag unaltered. Although it should be possible when installing =0A>an
independent =C2-backup alternator system.=0A>=C2-=0A>Furthermore the e
xtra performance gain with a second electronic system would =0A>probably be
very marginal.=0A>=C2-=0A>It is also obvious that this electronic system
necessitated the plug wiring kit =0A>from Dennis Savarese. It is out of th
e question using a =C2-> 45000 volt system on =0A>the Russian solid core
plug wires.=0A>=C2-=0A>One of the main goals was to find out if there
=99s a workable alternative for the =0A>mag coils. This has been proven.
=0A>=C2-=0A>BR,=0A>=C2-=0A>Jan Mevis=0A>YK50 RA2005K=0A>YK52 RA1453K=0A
>=C2-=0A>=C2-=0A>=C2-=0A>=C2-=0A>http://www.matronics.com/Navigator
?Yak-List=0A>http://forums.matronics.com=0A>http://www.matronics.com/contri
bution=0A>=C2-=0A> et="_blank">http://www.matronics.com/Navigator?Ya
k-List =0A>tp://forums.matronics.com _blank">http://www.matronics.com/con
tribution =0A>=0A=0A=0A-- =0ADidier BLOUZARD=0Adidier.blouzard@gmail.com
=0A=0A=0A=0A
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