These engines are Cheap to buy,run and rebuild. Spares available almost everywhere immediately. Just do it right and you will be stress free... engine rebuilds dont take 3months and they dont damage bank accounts.. making it possible for an average person to fly as well.
I have read about the cozy but he never mentions if the headers are stepped. He seems to know quite a lot about exhausts and said he looked at some race cars where it is very common to see stepped headers I dont even think you can buy aftermarket headers for a bike without them being stepped or having a expansion cone
It's lightweight but I have no experience with these engines so don't feel qualified to comment outside of saying that their lifespans probably won't be up where Lycomings and Rotax engines are.
My past association with Eggenfellner would make me biased so I won't do one on Viking. Aeromomentum I like, but only flight time on a bunch of engines will tell the reliability story. I may see if Mark there would supply info to cover the engine models at least though.
@@alessdre Just learning here. Why do you want to ditch the O2 sensor? Why would one want a manual mix knob? I think ECU machines should reduce pilot work load?
@@timduncan8450in my opinion the use of O2 sensor should be the best solution for reduce the pilot workload, the problem is that avgas use lead in composition and this deposit over the o2 sensor after few hours of flight. The solution would be the use of mogas, but it's not available in all the airports.
It's fun seeing all of these Subi power aircraft, and I'm glad to see there are those making it work. Do you have any experience with Mazda 13B and 20B engines with or without your SDS systems?
We did a 12A system for an airplane over 20 years ago and a bunch of systems for Wankel cars in the same era but no longer offer systems for Wankels. Too busy presently with our piston aviation business now.
I've been looking into 13b or 20b engines for a while, there's lots of available information from automotive tuners on getting them to run correctly and fuel consumption is less of an issue when you're running them in an aircraft at constant power. I think the biggest issue is a lack of a production gearbox. I'd like to have more people pushing skytrax for a wankel adaptation and we will be in business!
The biggest issue with the 13B / 20b is simply the engine itself. I'd done a tone of research on them 5-10 years ago and ultimately decided that while they can easily be built/rebuilt for cars I just don't think the same can be said for an aircraft. And as you may know, their greatest weakness is the apex seal. That and the efficiency / MPG. It's simply not a good design in it's current state which is why Mazda stopped making them. The RX-8, as an example, was notorious for having mass failures under 100k miles. I really wanted one for years but waited patiently to see what would happen, this after having owned an '85 RX-7 and yep, ...never bought another. Too many fails.
A builder installed one in his BD-4 and has been flying it for several decades. I don't know his name, but you might check out EAA's SPORT AVIATION Magazine archives.
Currently developing a stand alone EDFJ and a EDFJ/DIESEL HYBRID. The Rutan Long E-Z or the Cozy/side by side seating/based on the Rutan Verieze/Long E-Z design, possibly one of Revelaero's designs, as well as a Velocity 4-place, will be used as test bed aircraft. Tested will be a single and twin power-plant configuration (all electric twin and diesel/Jet-A hybrid on the Velocity aircraft). Twin configurations will be mounted much like the Honda Jet's power-plants. Goal: to fly faster, farther in a more quiet and comfortable manner than any other electric airplane using current battery technology. If you would like, we will keep you posted as to our progress and invite you to video document our results. Would be honored to have you. Please, keep up the great videos! Side note: have also considered hanging a twin configuration from wings of high wing aircraft, as seen on the Avro RJ.
Honda J35 engines have been pretty popular, used in Titan T51s. Almost no Toyota engines are flying that I'm aware of. If nobody builds a gearbox for them, an engine won't be used in any sort of numbers. Lots of good, aluminum V6s these days to choose from.
@@rv6ejguy He's actually right, they started as a Japanese WWII fighter plane engine manufacturer (en.wikipedia.org/wiki/Nakajima_Aircraft_Company) Although you are also right, Subaru didn't sell any of them hehehe
I can't grasp why people looked at the car industry, and then thought, yeah, lets pick the brand that has constant engine problems, and often needs their engines totally rebuilt every 60k miles? Is it all about the geometry of the engine and lower amount of vibrations? I for one rather have a working engine instead
Main reasons for installing a Subaru is they are an opposed four like traditional aircraft engines, are light and plentiful. As you can see from the video, properly assembled and installed, they can work well for a long time as well. No engine is perfect.
That Cozy is super impressive in the flesh. I saw it at the EAA hangar near me.
that airplane is something else
These engines are Cheap to buy,run and rebuild. Spares available almost everywhere immediately. Just do it right and you will be stress free... engine rebuilds dont take 3months and they dont damage bank accounts.. making it possible for an average person to fly as well.
I was wondering what the price comparison was, to a certified engine
@@ShawnSmith-uy3zr A overhauled O-320 using your core engine is around $22,000 if your crank and case are not damaged.
@@oneskydog4401 yep and the o-320 is way more likely to hit 2000+ trouble free hours.
@@oneskydog4401 what’s the cost and weight for some of these Soob conversions?
Great job! Great Subaru!
Great video !
I have read about the cozy but he never mentions if the headers are stepped. He seems to know quite a lot about exhausts and said he looked at some race cars where it is very common to see stepped headers I dont even think you can buy aftermarket headers for a bike without them being stepped or having a expansion cone
I have a 2.2 with a Ross.... I'd like to get the drawings for the 3.3 mount
What is your opinion of the turbocharged Apex snowmobile (snow machine?) engines coming from Edge Performance in Norway?
It's lightweight but I have no experience with these engines so don't feel qualified to comment outside of saying that their lifespans probably won't be up where Lycomings and Rotax engines are.
Phillips plane has an incredible sound
Agreed, much much nicer than a Lyc on a canard!
Everyone comments on the sound of my Cozy.
could you make a video about aeromomentum and viking engines? are they reliable or not
My past association with Eggenfellner would make me biased so I won't do one on Viking. Aeromomentum I like, but only flight time on a bunch of engines will tell the reliability story. I may see if Mark there would supply info to cover the engine models at least though.
Is possible to use SDS system with a mixture control for increase the fuel consumption?
SDS comes with a standard mixture control knob so you can lean and richen mixture +/- 50% from the programmed values easily.
@@rv6ejguy nice to know about this, I think with this control I'll not have issues using avgas once I'll not have to use an oxygen sensor.
@@alessdre Just learning here. Why do you want to ditch the O2 sensor?
Why would one want a manual mix knob? I think ECU machines should reduce pilot work load?
@@timduncan8450in my opinion the use of O2 sensor should be the best solution for reduce the pilot workload, the problem is that avgas use lead in composition and this deposit over the o2 sensor after few hours of flight. The solution would be the use of mogas, but it's not available in all the airports.
@@alessdre thx. Didn’t know about lead on O2 sensor issue.
The RV7 is gorgeous. Too bad the radiator integration steals him knots. A belly mounted radiator would surely help.
Great engine when it's built right.
It's fun seeing all of these Subi power aircraft, and I'm glad to see there are those making it work. Do you have any experience with Mazda 13B and 20B engines with or without your SDS systems?
We did a 12A system for an airplane over 20 years ago and a bunch of systems for Wankel cars in the same era but no longer offer systems for Wankels. Too busy presently with our piston aviation business now.
I've been looking into 13b or 20b engines for a while, there's lots of available information from automotive tuners on getting them to run correctly and fuel consumption is less of an issue when you're running them in an aircraft at constant power. I think the biggest issue is a lack of a production gearbox. I'd like to have more people pushing skytrax for a wankel adaptation and we will be in business!
@@mercedescherokee6853 Marcotte makes a gearbox with a Mazda bellhousing. I understand he's semi retired and they are hard to come by.
The biggest issue with the 13B / 20b is simply the engine itself. I'd done a tone of research on them 5-10 years ago and ultimately decided that while they can easily be built/rebuilt for cars I just don't think the same can be said for an aircraft. And as you may know, their greatest weakness is the apex seal. That and the efficiency / MPG. It's simply not a good design in it's current state which is why Mazda stopped making them. The RX-8, as an example, was notorious for having mass failures under 100k miles. I really wanted one for years but waited patiently to see what would happen, this after having owned an '85 RX-7 and yep, ...never bought another. Too many fails.
A builder installed one in his BD-4 and has been flying it for several decades. I don't know his name, but you might check out EAA's SPORT AVIATION Magazine archives.
Currently developing a stand alone EDFJ and a EDFJ/DIESEL HYBRID.
The Rutan Long E-Z or the Cozy/side by side seating/based on the Rutan Verieze/Long E-Z design, possibly one of Revelaero's designs, as well as a Velocity 4-place, will be used as test bed aircraft.
Tested will be a single and twin power-plant configuration (all electric twin and diesel/Jet-A hybrid on the Velocity aircraft).
Twin configurations will be mounted much like the Honda Jet's power-plants.
Goal: to fly faster, farther in a more quiet and comfortable manner than any other electric airplane using current battery technology.
If you would like, we will keep you posted as to our progress and invite you to video document our results. Would be honored to have you.
Please, keep up the great videos!
Side note: have also considered hanging a twin configuration from wings of high wing aircraft, as seen on the Avro RJ.
I'd be very interested in your progress and results. Sounds like an interesting and challenging project!
my buddy built a Zenith kit plane with a Subaru engine. my 172 cant keep up with it
what PSRU did he use?
Just wondering why no one is using Toyota's 2GR FE V6 engine? Seem it would have a decent power to weight ratio / reliability.
Honda J35 engines have been pretty popular, used in Titan T51s. Almost no Toyota engines are flying that I'm aware of. If nobody builds a gearbox for them, an engine won't be used in any sort of numbers. Lots of good, aluminum V6s these days to choose from.
How much do they cost and do they use gasoline or diesel......??
No diesel engines here.
Are you guys putting constant speed props on these Subaru engines? Are you sourcing the PSRU's or building them entirely from scratch?
Many of them have C/S and VP props, the Cozy has a FP. Most folks are buying PSRUs from other companies.
where to buy the conversion kit of subaru engines?
You pretty much need to roll your own these days. All the vendors offering FWF packages are gone unfortunately.
👍
Wow OSam 😄😄😄💎
Liberar tradução para português Brasileiro
Westies are the best!
Isn’t the Subaru auto engine is derived from a Subaru aircraft engine?
Subaru never made a production engine for aircraft.
@@rv6ejguy He's actually right, they started as a Japanese WWII fighter plane engine manufacturer (en.wikipedia.org/wiki/Nakajima_Aircraft_Company) Although you are also right, Subaru didn't sell any of them hehehe
I can't grasp why people looked at the car industry, and then thought, yeah, lets pick the brand that has constant engine problems, and often needs their engines totally rebuilt every 60k miles?
Is it all about the geometry of the engine and lower amount of vibrations? I for one rather have a working engine instead
Main reasons for installing a Subaru is they are an opposed four like traditional aircraft engines, are light and plentiful. As you can see from the video, properly assembled and installed, they can work well for a long time as well.
No engine is perfect.
Great video !