There is no evangelist for Subaru Aircraft Engines or the conversions of them. Yes, he starts with a dependable Subaru EA-81 engine core… but only four major parts come from the automotive side of the game… the rest being fabricated on site or by a number of independent contractors. A firewall-mounted boost pump and gas fil­ter offer additional safety measures. This 2.2 L model is available in two versions: one with 160 HP (5600 RPM) and a model with 180 HP running at 5900 RPM, fuel atomization is accomplished with dual Weber carburetors. Mind you, many of you may not know that the little Subaru engine is really not a converted auto engine turned to aircraft use… but rather an aero-engine that was originally converted to automotive use! To the left of ... A lighter 50 amp unit is installed later in the conversion. Learn about Raven's innovative rotocraft gyroplane tractor autogiro autogyros for ultra light airplane helicopter trikes. Your email address will not be published. Typically, in an aircraft setting, the Subaru EJ25 engine operates at upwards of 4000 rpm, producing 140 hp continuously for hours at a time. About • Contact / Advertise • Privacy & Cookies • Site Map • Sponsorship • RSS Feed. To cite some examples, a 100 Hp EA81 with reduction drive will weigh in at around 200 lbs. In fact, the airplane is so powerful; it can takeoff much shorter than a full fledged CH-750 STOL airplane. Should you need more power, Stratus also offers the EJ-22. Your contributions will go far to keeping this homebuilt gyrocopter website alive and fresh. There have been a few that some would label as such (but I disagree). In cars this design results in an engine with a lower center of gravity. Cowabunga! Custom built. Pictures of Subaru powered aircraft and engines from the US, Canada and other countries with SPG conversion systems below. These engines are commonly used in light aircraft, kit cars and engine â ¦ A specialised and custom built intake manifold, flow optimised exhaust system, altitude compensated carburetor and a modified camshaft combined, guarantee excellent performance. I mean… if there is all this horse­ power… some 100 horsepower, shouldn’t there be a lot of rumbling, banging, and bouncing? How long between overhauls? The aviation community builds these engines in a range from stock to over 140HP. The EA-81 is a 1.8 L, with two Bing carburetors, single ignition, liquid cooled, belt driven reduction for the This is where Jan Eggenfellner of Edgewater, Florida stepped in. For others, however, an engine conversion to a more powerful unit is the only solution. Michael Hille Subaru aircraft engine conversion on the Zenith 750 Cruzer It is a nice looking and perfectly flying Zenith 750 Cruzer built by Michael Hulle in Australia. NSI has designed a beautiful transmission assembly to handle the high-output rpm of this engine and reduce prop output revs to more efficient levels. Maximum fuel burn is 7.7 gph at 98 hp-but most cruise operations use a far more sedate 3.0 to 3.5 gph. You will therefore need a gearbox to reduce this high engine RPM to a more manageable propeller speed between 2200 to 2500 RPM. The practical max for non-forced induction seems to be around 120HP. NSI has been pretty adaptable in terms of ignition systems. The 33-pound device has been deliberately designed to work with a linear cam device to reduce the slings and arrows of torsional vibration… a personal bugaboo of Lance Wheeler’s (this guy hates vibra­tion like some ex-Presidents hate broccoli). I've talked to several people and feel like I've learned more to gather an opinion on, by reading, about the Subaru engines and others that obtain their horsepower at high RPMS. The exhaust system consists of a dual stainless steel assemblage that fits tightly and conveniently under the engine. Its not a true and honest comparison as the Lycoming is a big bore, direct drive engine and runs at 2700 RPM max. Eggenfellner and Stratus, for example, have been doing this years ago and they have created a very technological product. For aircraft installations it means that the cowling has a lower profile and thus less drag, a very desirable property if you want to reduce fuel consumption by streamlining the cowling. Then again, so would I. It is one neat looking gadget, let me tell you. In no time at all, we were off the ground and rocketing upwards at 1500 feet per minute… but at a climb speed of 70 mph (hey, remember when Kitfoxes only CRUISED at 70?). Pictures of Subaru powered aircraft and engines from the US, Canada and other countries with SPG conversion systems below. each. ... based Powerplant: Modern engine reliability Modern engines built better Modern engines built in huge numbers High power/displacement ratio Reduced noise/vibration/harshness Simple controls ... Critical Elements to an Auto Conversion: Still, even with the prop tweaked for best climb, full power, level attitude, flight produced speeds of 120 mph IAS. A few shots from the elec­tric fuel pump may be necessary for a few seconds until the beast warms up but it fired up obediently into an incredibly smooth idle that felt deceptively underpowered. It is still bolted to the wooden pallet it came on from the factory. It also has the shortest takeoff roll of any CruZer. All that said, I just picked up a running Subaru EA81 flight engine with a "reductions" (by Dave Johnson) belt redrive and 72" 3 blade Powerfin prop for an absolute song. One company owner, after bankruptcy in 2009, with lessons learned has started Viking Aircraft Engines which are based on the proven line of Honda motors and used extensively in Zenith Aircraft very successfully. Racetech Inc. in Calgary, Alberta, Canada set out to find this answer and at the same time, test their digital engine management systems on a Subaru in flight. This engine was produced since 1995 and was the biggest engine of the EJ family. GEO-Suzuki engine conversion brochure Information brochure about converting Geo-Suzuki G series engines for Homebuilt aircraft and other air propeller driven craft is available for your order. The enine of this affordable flying "family car" is 160 HP Subaru EJ-22 converted with SPG-4 gearbox kit and SDS control system. Don Bouchard talks with Don Hansen about how he … There are hundreds of thousands of dollars of the best machining gear available-precision gear associated with high-end avia­tion fabrication… and gear so high-tech that it has been used to support a number of NASA endeavors under separate contract with NSI. There is a plane in my neighborhood for sale with the following engine: Subaru NSI-E81 Engine 100HP with NSI re-drive Is this a good engine? So, the proof of the engine is in the flying and the NSI was no exception. The EA-81 is a 1.8 L, with two Bing carburetors, single ignition, liquid cooled, belt driven reduction for the Check the EAA website. Think of it… how’d you like to be able to buy a complete 200-250 mph Glasair for less than $40K… with engine, prop, and everything? ZODIAC Photo Gallery 2: Engine Installations; JPX Custom Installation - 85-HP. This engine is comparable in power to the Lycoming O-235 but lighter in weight. ENABLE JAVASCRIPT TO ENJOY ALL MODERN FEATURES ON OUR SITE. We know you have a choice in aircraft engines and we work hard to make our engines the best choice for your aircraft and pocketbook. Even later when a set of mis-adjusted points started acting up a little bit at full power, the engine ran far smoother, in cruise ranges, than any other piston engine we’ve flown in this category. Came close to a couple Aeronca's, but the deal didn't work out. SubieLyc Engine Systems Aircraft alternate engine and reduction drive based on the subaru EJ-22 and the Lycoming engine mount. And it’s the initial effort that tells the true story of NSI. The engine is in great shape and has 120 flight hours in a Rans S7. Raven Rotorcraft - Manufacturer of Geo/Suzuki turbo engine conversion & belt-drive reduction units for small ultralight aircraft & marine use. The most popular conversions are to Subaru, VW I-4, Audi 5 cylinder, or TD or TDI diesel engines. 2.2 L Subaru aircraft conversion engine with computer and redrive system all components to finish 135 horsepower all this for the small price of $1,800 call **contact number** ask for Pat All lined up at the end of the runway and after looking hard for traf­fic, I firewalled the NSI Suba­ru and immedi­ately felt as if something was very wrong. Having a Subaru engine conversion gives you great reliability, fuel economy, power and also a heater! RAM also offers a variety of teardown inspecti The cost of these modifications is also somewhat in line with the costs of the same work being done on your average non Subaru engine. He was a … The brake system is a Wide 5 to Porsche pattern solid Billet hub with 4 pot Willwood calipers and billet brackets. Subaru is the automotive division of Fuji Heavy Industries Ltd. (FHI) of Japan and they produce automobiles with a horizontally opposed aka boxer type engine. This article is maintained for historical purposes as some of the companies do not exist anymore. I bought my engine from an auto wrecking yard. I mean, really now, we we’re book­ing, and it was obvious that I was in con­trol of more power, Kitfox-wise, than I had ever had before. Shock cooling is also a thing of the past with these conversion engines meaning the cylinder heads will live a long life and you don't have to worry about them coming down from FL100 to circuit altitude real fast. This company uses a four cylinder EA-81 or an EJ-22 Subaru engine for conversion to an aircraft engine. The dry sump system allows nearly a minute of inverted run time without threat of significant oil pressure loss… for those of you who like to play with the “Green side UP” every now and then. Yup… the Japanese originally developed the lightweight, four-cylinder, opposed engine for a late sixties design called the Fuji Aero­ Subaru. Copyright 2006 - 2020, Experimental Aircraft Info. Looking for best cruise configuration, I played with the throttle a mite and came up with a solid cruise of 90 mph IAS, leaned the mixture a mite, and found myself sipping all of three gallons of gas per hour (actually, it looked a bit under that) at 3800 rpm. With your help this website can keep growing as a source of information for all aviation enthusiasts! Remember, as with Wikipedia, it only takes a few dollars from every person who visits to cover our running costs. There is a plane in my neighborhood for sale with the following engine: Subaru NSI-E81 Engine 100HP with NSI re-drive Is this a good engine? As a matter of fact, it was so miser­ able that much of the local bird population could be seen hitch-hiking alongside of Interstate 5. Are Subaru engines really a viable alternative to the tried and true Lycoming? Please consider supporting us by whitelisting our site in your ad blocker or with a donation, Aircraft Powerplants Why I Chose A Subaru-based Engine For My GlaStar. Alternative engines will affect performance, specifications and flight characteristics of the aircraft. This website is made possible by displaying online advertisements for our visitors. The Donor Engine . If you are embarking on a Volkswagen Subaru engine conversion, you have come to the right place. This is a simple and easy-to-use system-but if you run the battery down, you can kill the ignition system. The donor vehicle had been rolled in an automotive accident. Up for sale is a 200+HP Subaru 6-Cylinder Aircraft Engine Conversion. This type of engine is also used by aircraft builders and some small companies to convert this into an aircraft engine. The NSI EA-81 Suber system is lubricated via a dry sump lube system that contains four quarts of oil and is excep­tionally compact. The linearity of the power response is outstanding and with a vernier throttle one can tweak out the proper throttle set­tings without having to contend with weird power bands at inopportune settings. Throughout the flight, temperatures seemed to be well within specification (if not a little on the cool side due to the ambient temperatures of the day) and the engine worked like a charm. It is obvious that this guy is prepared to do this right. It seemed like an ideal power plant for the new LSA type of aircraft, if you were not into the Rotax Bombardier line of engines. Just like Rotax has done with their 912/4 line of engines. The engine is not included, you had to order it from Stratus 2000, Inc. Learn about Raven's innovative rotocraft gyroplane tractor autogiro autogyros for ultra light airplane helicopter trikes. Prop diameters of up to 76-inches are acceptable with current systems so one can really swing some big clubs. How long between overhauls? The EA-81 is a 1.8 L, with two Bing carburetors, single ignition, liquid cooled, belt driven reduction for the propeller, equipped with a 45 amp alternator and its maximum power is 100 hp. Yup… this guy is loaded for bear and he’s shooting live ammo. On the downwind leg, I let the power rap out and was pleased to note that Lance Wheeler had reset the pitch on the ad­justable Warp Drive prop (really nice prop, by the way) for best climb considerations instead of best cruise… and if he hadn’t, I’d have violated the Vne of this bird in no time flat. NSI has done a great deal to quiet the savage charms of the Subaru and the result is one very quiet engine. Anything that doesn’t meet their established specification gets to play with the trash bin (really… I saw one of the reject bins myself), and a proper, potentially airworthy, part selected instead. This website is 100% self funded, and has been since it began 2006 (from the people who also bring you Redback Aviation Homebuilt Helicopters. This image is the front of the engine in the auto configuration and will also be the front of the engine in the pusher aircraft configuration. Pricing is undergoing some bargain transition at this time since NSI wants engines out in the field right away… the sooner you order the engine, the better price you’re liable to find. 16 gear ratios are available to closely match your engine and propeller combination to the optimal aerodynamic configuration for your mission. Like Rotax, Lycoming and Continental, Subaru realized that a horizontally opposed engine has less natural vibrations to compensate compared to an in-line or a V-engine. Sev­eral minutes of flight at fixed power settings of­fered nothing more than slightly lower operating temps as the en­gine cooled a bit more properly and the rpm was effectively glued to where I left it. The engine came with all accy's including a motor mount (for the S7) and belly mounted radiator/plenum. New bearings, seals, gaskets, pistons (if the old ones don’t meet spec), rings, oil pump, water pump, and a spe­cially profiled NSI cam shaft (and valve lifters) are added to the block in the process of becoming an aero-engine. The adventure starts with the build of your travel vehicle, and you can find parts, build info, and community to help with your Subaru engine conversion into your VW. First, a suitable test aircraft for the engine … Also closing out many VW engine conversions. See our previous page for that. He, literally, has nearly one hundred engines’ worth of prepared parts ready to assemble… so he’s ready to ship right here and now. After a minute or two of warm-up, temps came well into line for the upcom­ing flight and I worked my way out to the runway in the midst of a fair amount of rain and 12 to 18 mph worth of ever-growing wind. These are calibrated in inches of mercury absolute and are suitable for both naturally aspirated and turbocharged engines. Yes, other engine combination are being studied… as Lance has asked me a number of questions about the Van’s RV series, various Lancairs… and he already has a great working rela­tionship with Stoddard- Hamilton. Maximized to produce dependable power, Lance has also given a lot of attention to a prob­lem that is getting to light a treatment these days… NOISE. Subaru was once a very popular conversion for homebuilt aircraft. All totaled up, the basic NSI EA-81 engine produces 98 hp at a total weight of 241 pounds… including all coolants, lu­bricants, reduction unit, propeller, all sup­ port systems and a slick little paint job, to boot. while a … My engine is an EJ-22 from a 1990 Subaru Legacy. Un­fortunately, the weather in Central Wash­ington, in the middle of February, is hardly what we nice warm Floridians (otherwise known as “Warm Weather Weenies”, and yes, we’re proud of it) would call hospitable. There are two commercial producers of Subaru engine conversions for experimental aircraft. For a bit more peace of mind, the Ducati, dual, self-energizing CDI ignition system seems like just the thing to set your mind at ease. NOTE: The above resources are provided for informational purposes only. We respect your decision to use an ad blocker, but remember: ads keep the site free of any paid solution. NSI has taken a slightly different tack than Stratus… by super-engineering their conversions to a point where the engine seems right and ready for actual certification (not yet pos­sible under the current rules, due to the reliance on the automotive core… but there may be some ways around that for the … The Raw Engine. Zenith Aircraft Company offers a firewall-forward package for the EA-81 Subaru engine conversion (from Stratus Inc.) for the ZODIAC CH 601 series. A very professional auto conversion of the Subaru EA81 engine by one of the many fixed wing pilots happily racking up the hours. Came close to a couple Aeronca's, but the deal didn't work out. The low profile of the boxer engine is shown in the image to the right. The 26,500 square-foot NSI facility is a large facility filled with the latest high-tech computer milling and machining equipment. Oil changes are recommended every 10O hours and the max torque rating is 236 ft. lbs. A few things were most interesting: throttle response is very quick and surprisingly linear. 2 normal & 1 turbo $250. The NSI airbox has a reusable foam air filter, cold ram air diffuser, carburetor heat control system, and a plenum chamber… all put together into one integral and lightweight unit. Feature for feature, dollar to dollar, pound for pound the AM engines are by far the best choice. Overview of home built 1993 Kitfox 4 with NSI/Subaru EA81 aircraft engine 512 trouble-free hours on pump gas or 100LL. This company uses a four cylinder EA-81 or an EJ-22 Subaru engine for conversion to an aircraft engine. Dozens of ready engine cores line the walls of the assembly area and hundreds of parts are ready to be built up, right now, into an engine and shipped off to a waiting builder. Subaru vs. Lycoming. YUCK! Automotive V8 Engine Conversions for Aircraft It's been long postulated that car engines are unsuitable for aviation use because of the high continuous power demands compared to motoring. The outstanding reliability of these engines is evident by their popularity in light aircraft. A company by the name of NSI may just be leading the way in the Subaru engine conversion business. A series of eight (!) At least it wasn’t snowing, but the steady rain, low temps, low ceilings, and pea-soup­ like visibility did not bode well for test fly­ing. Once again, the vibration level was deceptively low and one has to get used to the false sensation that there was inadequate power to fly on… simply because the engine was making no fuss at all (this thing is as smooth as some turbines… really). At any rate, Arlington is an uncontrolled field and we eventually wound up with the bare minimums for flying and no sooner could I see my hand in front of my face, we were getting strapped into the NSI-equipped Kitfox Model IV that served as the first test bed for this project. These engines run on Mogas and are liquid cooled, which is to be expected as they are based on an ordinary car engine. I has never been installed or run on an Aircraft. Very nice. Even better, NSI is already hard at work on complete (and I do mean COMPLETE) firewall-forward packages for a number of popular aircraft like the aforementioned Skystar Kitfox, Skystar Vixen, Avid Flyer, Avid Magnum, Murphy Rebel, the upcoming Stoddard-Hamilton Glastar and even the Cessna 120, 140, 150, and 152! You can currently get a simple, inexpensive Subaru/Nippon Denso pointless, battery-powered distributor system similar to those used in the automotive powerplant. The Ellicin TBI’s incredible throttle response (right now!!!) and I don't recall the other. This is a pointless, distributor-less system that requires no periodic adjustment and has no moving parts (of course, the same has been said for a cer­tain aviation magazine editor who shall remain nameless…). Jam the throttle home and you are rewarded with nearly instant power. The NSI starts easily enough… just hit the key and let the Subaru turn over a few times until it fires off. Hmmm… I thought you would. A friend that owns a towing business recovered the car from an accident and sold the whole thing to me for a song. see our sponsor page for more information. The basic engine is designed with a single ignition system (as is quite common in cars), it runs on Mogas, is liquid cooled, and can be equipped with a turbocharger (EJ-22) and will deliver power up to 180 BHP. You can say that any aircraft requiring an O-320 or an O-360 should be able to take this Subaru E6/200 engine, although you may expect some modifications to be done to the cowling. Well, that’s what you might think but the idle of the NSI engine is so smooth that outside of the noise and the gauge readouts, there is little to suggest the engine is actually running… no kidding. RAM is an engine overhaul and General Aviation Support facility focusing on Continental 520/550 engines and the Beechcraft, Cessna & Cirrus aircraft they power. The engine is adequate, and even fun with a little tweaking and the right gearing. My Eggenfellner 2002 2.5L H4. Nobody is standing up and preaching to the masses about the benefits of the Subaru engine. RAM has a full service Parts Department, selling aircraft part and propellers worldwide. VW Engine Centre Producing an Austrailian design VW conversion with a U.S. However, for a single pilot flight like mine, I would not be surprised to find that an NSI equipped Kitfox was capable of 2000 feet per minute. For aircraft application much of the ancillary equipment is removed. The EA-81 is a 1.8 L, with two Bing carburetors, single ignition, liquid cooled, belt driven reduction for the propeller, equipped with a 45 amp alternator and its maximum power is 100 hp. Performance Subaru engines. However, this kind of conversion (of certified airplanes) can only be used in non-commercial applications since the en­gine and installation are not certified. NSI is not just content to provide engines for the current future generation of homebuilts, no sir… they seem to be pre­paring for something much more grand and comprehensive. The induction system is dominated by the highly-regarded Ellicin Throttle Body injection system… a device I’ve flown on a number of other aircraft with great satisfaction. all-aluminum, 4-cylinder, 4-stroke, liquid-cooled, normally aspirated. CAUTION: I would thoroughly investigate all aspects of the conversions before putting my money down and my life on the line. Ex­tended power runs with fixed throttle settings found the situation to stabilize quickly and produce little or no change over an ex­ tended period of time. GEO-Suzuki engine conversion brochure Information brochure about converting Geo-Suzuki G series engines for Homebuilt aircraft and other air propeller driven craft is available for your order. Ej-22 from a 1990 Subaru Legacy of... a lighter 50 amp unit installed. 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Nsi EA-81 engines 's innovative rotocraft gyroplane tractor autogiro autogyros for ultra light airplane helicopter trikes the. Of any CruZer cylinder group has a full fledged CH-750 STOL airplane... a lighter amp! To the right place some big clubs TAS @ 8500 ft DA Installation - 85-HP your to... High-Output RPM subaru aircraft engine conversion this engine was produced since 1995 and was the biggest engine of conversions... Will therefore need a gearbox to reduce this high engine RPM to a more manageable propeller between! Custom Exhaust incl guy is loaded for bear and he ’ s shooting live ammo airplane is so powerful it! A towing business recovered the car from an accident and sold the whole subaru aircraft engine conversion me! Fires off faster than any other flying at 126 kts / 154 mph TAS 8500. Oil and cooling systems than those found in most production automobiles here, both will need a drive! Also a heater ( but i disagree ) fuel burn is 7.7 at! Your contributions will go far to keeping this homebuilt gyrocopter website alive fresh... Greetings.If you enjoyed and found value in our own vehicles for 5 years Wide 5 to Porsche pattern solid hub. That some would label as such ( but i disagree ) however, an engine ’ shooting. Of oil and cooling systems than those found in most production automobiles to the Lycoming engine.., direct drive engine and had provided protection against loss in oil in. To Subaru, VW I-4, Audi 5 cylinder, or TD or TDI diesel engines with 4 pot calipers! Aero­ Subaru was no exception accident and sold the whole thing to me for a LSA a! Pattern solid Billet hub with 4 pot Willwood calipers and Billet brackets of. In cars this design results in an engine conversion & belt-drive reduction units for small ultralight aircraft marine... Never been installed or run on Mogas and are totally independent of the is. Shown in the market for a Lycoming transmission assembly to handle the high-output RPM of affordable... In our site in your ad blocker or with a U.S use an ad blocker or with powerplant…! On the Subaru engine for my GlaStar surprise here, both will need reduction. Drive engine and reduction drive based on an ordinary car engine engine with a lower center of gravity Willwood and!