Today's Message Index:
----------------------
1. 11:33 AM - Re: Jabiru Powered MKIII (JetPilot)
2. 11:41 AM - Re: Jabiru Powered MKIII (lucien)
3. 12:35 PM - Re: Re: Jabiru Powered MKIII (Richard & Martha Neilsen)
4. 08:12 PM - Monument Valley (Jon LaVasseur)
5. 09:06 PM - Re: Monument Valley (b young)
6. 09:08 PM - Re: Monument Valley (Larry Cottrell)
Message 1
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| Subject: | Re: Jabiru Powered MKIII |
600 Bucks [Shocked] That is less than 1/10 th what the same parts would cost
for the Rotax 912-S. I ask because my friend bought a Great Planes VW for his
Kitfox, it seems like a really nice engine at a very good price. My friend
will be using direct drive which should solve a lot of problems. The Redrive
still seems like a a constant problematic area for many of the engine conversions,
how is your latest redrive working out for you ? Is it still a belt drive.
I don't like the slide carb either, they seem to be very sensitive to fuel pressure,
I read a report of a guy getting vapor lock with one several times. It
just seems like a bad idea to be running such low fuel pressure that the slide
carb requires. Are you up and flying again this season ?
Mike
--------
"NO FEAR" - If you have no fear you did not go as fast as you could
have !!!
Kolb MK-III Xtra, 912-S
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=242943#242943
Message 2
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| Subject: | Re: Jabiru Powered MKIII |
JetPilot wrote:
> 600 Bucks [Shocked] That is less than 1/10 th what the same parts would cost
for the Rotax 912-S. I ask because my friend bought a Great Planes VW for
his Kitfox, it seems like a really nice engine at a very good price. My friend
will be using direct drive which should solve a lot of problems. The Redrive
still seems like a a constant problematic area for many of the engine conversions,
how is your latest redrive working out for you ? Is it still a belt
drive.
>
> I don't like the slide carb either, they seem to be very sensitive to fuel pressure,
I read a report of a guy getting vapor lock with one several times. It
just seems like a bad idea to be running such low fuel pressure that the slide
carb requires. Are you up and flying again this season ?
>
> Mike
FWIW, A friend of mine who used to run a VW conversion said the usual TBO for the
VW is about 500 hours, at least for the top end. Is that about right?
If so, the 912 parts aren't actually that much more expensive since they'll last
(now unofficially) 2000 hours at least. I.e. you won't be buying them as often
long as the engine stays together.
VW is still intriguing tho, especially if it has a good redrive....
LS
--------
LS
Titan II SS
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=242944#242944
Message 3
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| Subject: | Re: Jabiru Powered MKIII |
Mike/Lucien
Redrives do add some issues but give some benefits that more than out way
any negatives. The VW redrive takes the gyroscopic and harmonic load off the
crank shaft. VW engines almost died out as aircraft conversions due to crank
shaft breakage. Better cranks and a extra large main bearing on the pulley
end solved that issue. Way too much heat in the heads shortens the life of
VW valves. My redrive engine runs so much cooler than my direct drive engine
so I'm hoping it will have a longer valve life. I have also seen titanium
racing valves that might be a solution. Great Plains is also working on
water cooled heads and that will solve the top end TBO issues. The biggest
reason for a redrive is the increased thrust. My direct drive engine could
barely get me off the ground and ran high oil and CHT temperatures and still
would only fly 65 MPH at cruise. My redrive engine gets me and a passenger
off the ground in fine fashion, runs almost 50 degrees cooler CHT 20 degrees
cooler oil temps, a gallon and hour less fuel burn and my cruise is 75MPH.
Say what you want but I'm convinced a redrive on a VW is a good thing.
I'm starting my third season on the original redrive belts and am
considering replacing them this year.
Rick Neilsen
Redrive VW powered MKIIIC
----- Original Message -----
From: "lucien" <lstavenhagen@hotmail.com>
Sent: Wednesday, May 06, 2009 2:41 PM
Subject: Kolb-List: Re: Jabiru Powered MKIII
>
>
> JetPilot wrote:
>> 600 Bucks [Shocked] That is less than 1/10 th what the same parts
>> would cost for the Rotax 912-S. I ask because my friend bought a Great
>> Planes VW for his Kitfox, it seems like a really nice engine at a very
>> good price. My friend will be using direct drive which should solve a
>> lot of problems. The Redrive still seems like a a constant problematic
>> area for many of the engine conversions, how is your latest redrive
>> working out for you ? Is it still a belt drive.
>>
>> I don't like the slide carb either, they seem to be very sensitive to
>> fuel pressure, I read a report of a guy getting vapor lock with one
>> several times. It just seems like a bad idea to be running such low fuel
>> pressure that the slide carb requires. Are you up and flying again this
>> season ?
>>
>> Mike
>
>
> FWIW, A friend of mine who used to run a VW conversion said the usual TBO
> for the VW is about 500 hours, at least for the top end. Is that about
> right?
>
> If so, the 912 parts aren't actually that much more expensive since
> they'll last (now unofficially) 2000 hours at least. I.e. you won't be
> buying them as often long as the engine stays together.
>
> VW is still intriguing tho, especially if it has a good redrive....
>
> LS
>
> --------
> LS
> Titan II SS
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=242944#242944
>
>
>
Message 4
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Looks like I will be delivering the cookies this year.Shipping is so expensive.
Boyd, will you have your trunk for warming them? :-)
We expect to fly out of Minneapolis on Tuesday or Wednesday next week but won't
have the red Firestar this time. I'm bringing a friend who wouldn't fit in the
back.
See you next week.
Jon L
Minnesota
Message 5
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| Subject: | Re: Monument Valley |
Looks like I will be delivering the cookies this year. Shipping is so
expensive. Boyd, will you have your trunk for warming them? :-)
We expect to fly out of Minneapolis on Tuesday or Wednesday next week but
won't have the red Firestar this time. I'm bringing a friend who wouldn't
fit in the back.
See you next week.
Jon L
Minnesota
>>>>>>>>>>>>>>>>>>>>>>>
I don't think so. unless the weather turns off bad, my wife is still
undecided if she wants to fly down with me or drive down with my son and
daughter in law to Moab, the weather for southern ut is for clear and
sunny for the next 7 days.. northern ut is still a bit iffy.
boyd
Message 6
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| Subject: | Re: Monument Valley |
Looking forward to seeing you there in person. Practice putting up your
tent before you get there though. :-)
Larry C
----- Original Message -----
From: Jon LaVasseur
To: kolb-list@matronics.com
Sent: Wednesday, May 06, 2009 9:09 PM
Subject: Kolb-List: Monument Valley
Looks like I will be delivering the cookies this year. Shipping is so
expensive. Boyd, will you have your trunk for warming them? :-)
We expect to fly out of Minneapolis on Tuesday or Wednesday next week
but won't have the red Firestar this time. I'm bringing a friend who
wouldn't fit in the back.
See you next week.
Jon L
Minnesota
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05/06/09 17:58:00
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