Not a KR2 but I knew a Europa Classic with EA81 engine with NSU conversion. It's very heavy for what it is, and very complex too. The two on this aircraft (the first one seized on takeoff, I have oil stains on my shed floor from dismantling the second to find out whether it was savable - it wasn't) had a dry sump ans separate oil tank. It wasn't a good installation, but the engine pretty much forced the installation it ended up with. The oil system ended up with non return valves to prevent the oil tank draining in to the crank case or unpriming its feed pump but they in turn prevented expansion after shutdown and it would burst oil coolers regularly. Coupled with dual ignition systems with siamese HT leads going to common spark plugs on the automotive cyclinder heads, the whole thing seemed like a bad idea to be honest. It had no obvious advantages over other powerplants around, but had a number of features (did I mention the installation is very heavy?) that made it an engine I would be nervous flying behind. Infact - I never did fly in this Europa - I only assisted the two owners the aircraft had while I knew it in diagnosing what was wrong with it this time and dismantling things. They're rare for a reason. I'd say avoid.
Sent from Yahoo Mail on Android On Thu, 31 Aug 2017 at 6:07, Hendrik van Rooyen via KRnet<krnet@list.krnet.org> wrote: Hi all, Thank you for your replies. Opportunity is knocking at my door and I can literally exchange my Rotax 582 for a recently overhauled and fully converted EA81 with proper toothed belt reduction that flew in a gyrocopter before. Comes with a Warp drive prop. Dyno tested to 100hp. So, before I rush into anything, I want to know from those who've flown the KR2 behind a similar engine. Kind regards, Henni -----Original Message----- From: KRnet [mailto:krnet-boun...@list.krnet.org] On Behalf Of Peter via KRnet Sent: Thursday, 31 August 2017 5:25 AM To: KRnet <krnet@list.krnet.org> Cc: Peter <storagehasti...@clear.net.nz> Subject: Re: KR> Subaru EA81 Problem is that EA81 will require a reduction and turbo to get that horsepower. You can get up to 70 @ 4000 rpm. No need to go for big numbers in a KR2. You should use the 10 BHP per litre per 1000rpm as a guide to what you can realistically expect any conversion to yield. This formula says the EA81 will give 72 hp @ 4000. 2100 revmaster gives 57hp @ 2700 by this formula. My retractable KR2 cruises at 120kts so is using less than 50 hp at this speed. Regards Peter - Original Message ----- From: "Mike Sylvester via KRnet" <krnet@list.krnet.org> To: "KRnet" <krnet@list.krnet.org> Cc: "Mike Sylvester" <shagste...@hotmail.com> Sent: Thursday, August 31, 2017 1:22 PM Subject: Re: KR> Subaru EA81 > As far as I know. If you can get a Subaru to make 100 horsepower > without over heating, you'll be the first. It's not the size of the > radiator but the amount of heat generated is more than the water > flowing through the block can handle. Just my 2 cents. > > Mike Sylvester > kr2s builder > Birmingham,AL. > > Cell no.205-966-3854 > > > ________________________________ > From: KRnet <krnet-boun...@list.krnet.org> on behalf of Hendrik van > Rooyen via KRnet <krnet@list.krnet.org> > Sent: Wednesday, August 30, 2017 2:55 PM > To: KRnet > Cc: Hendrik van Rooyen > Subject: KR> Subaru EA81 > > Hi all, > > What is your experience on the KR2 powered by the Subaru EA81 > converted to 100hp? > > Kind regards, > > Henni > South Africa > > > _______________________________________________ > Search the KRnet Archives at > https://www.mail-archive.com/krnet@list.krnet.org/. > krnet - The Mail > Archive<https://www.mail-archive.com/krnet@list.krnet.org/> > www.mail-archive.com > Messages by Thread KR> 4 More Attendees Signed for the Gathering John > Bouyea via KRnet; KR> Steve Glover Matt Quimby via KRnet; KR> IFly > Larry Flesner via KRnet > > > > Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. > KRNet "Basic" Instructions<http://www.krnet.org/info.html> > www.krnet.org > Join the KRnet email list by sending an email to > krnet-ow...@list.krnet.org. Please include your name, address, phone > number, and a sentence or two on why you'd like ... > > > > see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change > options. > KRnet Info > Page<http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org> > list.krnet.org > KRnet is a mailinglist devoted to construction and flying the KR series of > homebuilt experimental aircraft. To see the collection of prior postings > to the list ... > > > > To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org > _______________________________________________ > Search the KRnet Archives at > https://www.mail-archive.com/krnet@list.krnet.org/. > Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. > see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change > options. > To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org _______________________________________________ Search the KRnet Archives at https://www.mail-archive.com/krnet@list.krnet.org/. Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options. To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org _______________________________________________ Search the KRnet Archives at https://www.mail-archive.com/krnet@list.krnet.org/. Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options. To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org _______________________________________________ Search the KRnet Archives at https://www.mail-archive.com/krnet@list.krnet.org/. Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options. To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org
