Today's Message Index:
----------------------
1. 07:33 AM - 4 stroke engine (akflyer)
2. 07:54 AM - Re: 4 stroke engine (Bob)
3. 08:11 AM - Re: 4 stroke engine (akflyer)
4. 09:17 AM - Re: Re: aquamaster floats ??? (Guy Buchanan)
5. 12:26 PM - Re: External Alternator for 912S on Model 7? (SOURDOSTAN@aol.com)
6. 01:59 PM - Re: 4 stroke engine (Don & Dianne Usher)
7. 04:32 PM - 912 UL Carb Needle index (Jay Fabian)
8. 06:40 PM - floats (Don & Dianne Usher)
9. 10:55 PM - Re: Re: Tailwheel bolt went off.... and the rest (m4785@bellsouth.net)
10. 11:04 PM - Re: Re: 4 stroke engine (m4785@bellsouth.net)
11. 11:48 PM - Final Cerification (avtar412)
Message 1
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I have been looking around for an alternative engine to get a bit more power for
my Avid. 65 HP is fine for wheels and pounding pavement but that is just not
what I am into.
I have been looking at the Arctic Cat 660 turbo for awhile now and think this may
warrant really looking into what it will take to put the "C" gear box on it.
Raven RE-drive has been using the 3 Cylinder Suzuki engine for awhile now with
good success, but that was the car motor. This is the cut down version for the
snowmachines. I am working on getting an AUW for the various components but
It will for sure be better than the subie by a long shot.
Stock it is a 72% increase in HP (110 HP @ 6700) and at cruise a 82% increase in
torque... this means more pitch go faster at cruise..
If you want to monkey with boost and fuel curve etc the HP is nothing short of
spectacular..just once I would like to take off on floats with 145 to 160 HP..Gotta
be like flying a turbine otter empty with very little fuel.
--------
Leonard Perry
Soldotna AK
Avid "C" / Mk IV
582 IVO IFA
Full Lotus 1260
95% complete
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=137261#137261
Attachments:
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Message 2
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| Subject: | Re: 4 stroke engine |
You mentioned the 3-cylinder Raven, but have you checked into their 4-cylinder? The 1300 Suzi/Geo engine puts out 90-115 hp for a lot less money than a Rotax 912/912S. http://www.raven-rotor.com/html/redrive.html
I guess it's the never-changing trade-off of power vs reliability, isn't it? The
snowmobile racers can get a LOT of hp out of those their two-strokes, but they're
replacing pistons on a weekly basis. The 582 is pretty conservative by
comparison. There's an old rule of thumbs regarding not wanting to dip into the
last third of anything. Make sure you have a third of everything as an absolute
minimum reserve. A third of the hp beyond what you really need, a third
of the torque (load), a third additional fuel and oil flow capability, etc.
Bob
--------
Remember that internet advice may only be worth what you pay.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=137264#137264
Message 3
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| Subject: | Re: 4 stroke engine |
I would say that it would be quite safe at 112 HP for take off.... That would be
very conservative on what you really can do... and the snowmachine racers...
The guys at the drags that are getting crazy HP outa the engine that is true..
some change pistons after almost every run, but for mild trail porting and tuning,
it is nothing to go for years many thousands of miles and never do anything
other than change plugs and clean power valves.
With the new technology, fuel injection, ECU's, pipe sensors etc, alot of the old
issues are now gone. you done have to worry about jetting for temps or altitude
etc. I believe this is the largest contributing factor to all the bad wrap
the 2 strokes have gotten. I know a guy locally that has had 5 or 6 engine
outs, resulting in the loss of 2 aircraft. All because he know nothing about
a 2 stroke and just wont listen when it comes to jetting and operations... the
last one he barely hobbled away from and is still in a brace for his broken
back.
--------
Leonard Perry
Soldotna AK
Avid "C" / Mk IV
582 IVO IFA
Full Lotus 1260
95% complete
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=137267#137267
Message 4
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| Subject: | Re: aquamaster floats ??? |
At 02:34 PM 9/28/2007, you wrote:
>here are a few pics of the floats.. I have never seen them before..
Anyone can see those floats are heavy. Just look at the tires on that
pickup! ;-)
Guy Buchanan
San Diego, CA
K-IV 1200 / 582-C / Warp / 100% done, thanks mostly to Bob Ducar.
Do not archive
Message 5
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| Subject: | Re: External Alternator for 912S on Model 7? |
Check with B & C Specialties. They used to sell one that fit the 912ul.
Stan Specht
Kitfox Model IV Speedster "Columbine" (1250+ hrs)
Denver, Colorado
Message 6
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| Subject: | re: 4 stroke engine |
A friend of mine has the 4 cylinder geo engine in his Rans courier on
floats. It is the smoothest running aircraft engine I have ever heard,
and he has not touched it in one hundred hours of use. Weighs just a
little more than a 912 and he has about $6000 in it. Raven redrive bolts
right onto it. Four cylinder, 16 valve, 100hp computer controlled for
$6000, Not bad, and parts/service is readily availible and cheap.
Don
Message 7
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| Subject: | 912 UL Carb Needle index |
Hi List,
I am pulling my Kitfox 4 out of the hanger after a while of not flying
it. I have drained all the Auto fuel with10% alch in it, and just
filled it back up with non alch auto gas from the airport.
I had moved the Carb needle last year , as I was using the 10% eth gas
and had problems. Now I am going to use the new gas but the needle
settings are making the 912 run rough at the 2k RPM mark, but smooth at
the 3k and higher settings.
Out of the 4 slots on the needle, which one will give me the best
operations? it is about 65 deg F OAT here in Ma.
I started with the clip in the second slot from the bottom of the
needle, ( Ran Bad)
I moved it one notch up and got the same results, moved it to the bottom
one and the low rpms are rough sounding like a Harley sound, middle rpms
are fine.
Any suggestions? i had this nipped in the but last year but now I am
banging my head again
Thanks
Jay Fabian
Message 8
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I have to sell my new full lotus floats. Home is on a beach that is
always windy. either amphibs or nothing. Great performance with KF 3.
Cruise at 80mph and off water in 8 seconds flat calm. Comes complete
with rigging that allows main gear left in place. Takes one hour to
change from wheels to floats. Have lots of pics email
denver7@xplornet.com.
Don
Message 9
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| Subject: | Re: Tailwheel bolt went off.... and the rest |
Curious why you stripped the covering,Ihave a kitfox 4 with a 2leaf spring and
no problems yet with the tail wheel...lots of 3 point landings..some graceful&some
not...
I have hear some folks are going to 3 leaf springs,maybe that might work as a
solution..
Did you have a hard landing when this occured?, or do you think this is a structural
failure in the mounting brackets,and/or metal fatage on the the bolts
them selves.....A/N hardware?
Note: epoxy braced fills [metal on wood] will give a harmonic that the wood might
not support,succesfully causing a fracture in the high stress point...
Thanks ...Mark..N61AC
-------------- Original message from "Zimmermans" <jezim@pro-ns.net>: --------------
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<P>Curious why you stripped the covering,Ihave a kitfox 4 with a 2leaf spring and
no problems yet with the tail wheel...lots of 3 point landings..some graceful&some
not...</P>
<P> I have hear some folks are going to 3 leaf springs,maybe that might work
as a solution..</P>
<P> Did you have a hard landing when this occured?, or do you think this
is a structural failure in the mounting brackets,and/or metal fatage on the the
bolts them selves.....A/N hardware?</P>
<P> Note: epoxy braced fills [metal on wood] will give a harmonic that the
wood might not support,succesfully causing a fracture in the high stress point...</P>
<P> </P>
<P>Thanks ...Mark..N61AC<BR></P>
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Message 10
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| Subject: | Re: re: 4 stroke engine |
Thanks don,we needed more people like you to help our effort in after market engines,I
fly my fox4 with a VW 2180 82hp and love it,parts are cheap,motor is around
$6000.00 new and has a TBO of 1000 hrs.
Rotax is way over priced in my opinion for what you get....there motto is market
the Rich/famous/just those lost souls that can put it on there credit card....lol
-------------- Original message from "Don & Dianne Usher" <denver7@xplornet.com>:
--------------
A friend of mine has the 4 cylinder geo engine in his Rans courier on floats. It
is the smoothest running aircraft engine I have ever heard, and he has not touched
it in one hundred hours of use. Weighs just a little more than a 912 and
he has about $6000 in it. Raven redrive bolts right onto it. Four cylinder,
16 valve, 100hp computer controlled for $6000, Not bad, and parts/service is readily
availible and cheap.
Don
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<P>Thanks don,we needed more people like you to help our effort in after market
engines,I fly my fox4 with a VW 2180 82hp and love it,parts are cheap,motor is
around $6000.00 new and has a TBO of 1000 hrs.</P>
<P> Rotax is way over priced in my opinion for what you get....there motto
is market the Rich/famous/just those lost souls that can put it on there
credit card....lol<BR></P>
<BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px
solid">-------------- Original message from "Don & Dianne Usher" <denver7@xplornet.com>:
-------------- <BR><BR>
<META content="MSHTML 6.00.2900.2180" name=GENERATOR>
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<DIV><FONT face=Arial size=2>A friend of mine has the 4 cylinder geo engine in
his Rans courier on floats. It is the smoothest running aircraft engine I have
ever heard, and he has not touched it in one hundred hours of use. Weighs just
a little more than a 912 and he has about $6000 in it. Raven redrive bolts right
onto it. Four cylinder, 16 valve, 100hp computer controlled for $6000, Not
bad, and parts/service is readily availible and cheap.</FONT></DIV>
<DIV><FONT face=Arial size=2>Don</FONT></DIV><PRE><B><FONT face="courier new,courier"
size=2 color000000?>
</B></FONT></PRE></BLOCKQUOTE>
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Message 11
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| Subject: | Final Cerification |
Well I finally finished the 40 hr test period and received my non terminating Certificate
on Airworthiness! Aircraft flying beautifully. John A New Zealand.
Kitfox Series 5 EA 81 Turbo
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=137373#137373
Attachments:
http://forums.matronics.com//files/cath1st_ride_706.bmp
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