---------------------------------------------------------- Kolb-List Digest Archive --- Total Messages Posted Wed 05/06/09: 6 ---------------------------------------------------------- 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 _____________________________________ Time: 11:33:21 AM PST US Subject: Kolb-List: Re: Jabiru Powered MKIII From: "JetPilot" 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 _____________________________________ Time: 11:41:34 AM PST US Subject: Kolb-List: Re: Jabiru Powered MKIII From: "lucien" 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 _____________________________________ Time: 12:35:15 PM PST US From: "Richard & Martha Neilsen" Subject: Re: Kolb-List: 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" 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 _____________________________________ Time: 08:12:56 PM PST US From: Jon LaVasseur 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 ________________________________ Message 5 _____________________________________ Time: 09:06:42 PM PST US From: "b young" Subject: Re: 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 >>>>>>>>>>>>>>>>>>>>>>> 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 _____________________________________ Time: 09:08:12 PM PST US From: "Larry Cottrell" Subject: Re: Kolb-List: 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 ------------------------------------------------------------------------- ----- Checked by AVG - www.avg.com 05/06/09 17:58:00 ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message kolb-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Kolb-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/kolb-list Browse Digests http://www.matronics.com/digest/kolb-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.