RANS S21 EP23 YAMAHA AIRPLANE ENGINE
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- čas přidán 11. 02. 2021
- 998T Yamaha Sidewinder Engine Mount on the P2Aero Rans S21.
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Awesome! Excited to see how this progresses!
Love what you guys are doing with the DA1👍
Can't believe we are finally getting to the power plant. This thing is really coming along and I am glad I am here for the ride!
I’m still amazed that It’s going this fast as well! Rans has just made it to easy!
This is the most exciting video I have seen so far. I love the innovation of going with an “interesting” engine. The frame jig looks amazing. The idea of a water-cooled, fuel injected, turbo powerplant makes all kinds of sense to me.
Epic! I cant wait to see how it all goes together.
Fantastic! I'm very excited to see your progress. Thanks for sharing this.
Great philosophy on the power plant choice.
Great stuff! Glad to see the innovation. No stealth here! Keep up the great work and inspiration for the rest of us S-21 builders.
That Yamaha engine will not disappoint you. I Have one in my Arctic cat 2020 just always use the Yamaha HP 15w50 or 10w40 for the colder outside temps. I love the engine it loves to scream 9,300 RPM is its sweet spot for power. but 10,500 RPM it likes also no problem.
Yamaha make very fine engines indeed. I shall follow your project with interest.
Sure am impressed with all your work! keep it up!
thanks!
Following with great interest. Always interested to watch your videos as my build is lagging yours. Keep up the great work!
Wow, great comments about progressing with modern technology. Super excited to see how she performs! I’m a bit paralyzed with my engine choice... keep up the great work.
Thank!
Great looking project. Go for it. Glad to see a new innovative approach. I want to offer some words of encouragement ... having done a very similar set up myself. I had a lot of detractors when I put a honda 1.8L (turbo) on my RV6A. I built the mount myself too. I now have 100 hours in the air and it is going well.
Appreciate that! Your project sounds awesome!
@@Project2Aero Thanks I want to build STOL now.. Ill be watching your build
You built that mount quick! Hope my measurements helped!
Yes sir, thanks again for that! It’s all still just tacked together. Once I get a little further with the intake and exhaust turbo manifolds I’ll make things a bit more permanent. I still have a few tubes to add in there👍
@@Project2Aero it looks very nice! Do you have someone to tig weld it for you?
@@DadandChad Yes sir, when I’m happy with everything, I’ll get it done by someone who knows what they are doin. I don’t feel I should learn on my engine mount.. lol
@@Project2Aero I don’t think that would be too wise. I have a nice tig welder in the shop and a friend that’s certified. He welds the exhaust stacks that are oem equipment on the Kodiak.
I meant to add he would do it if you can’t find anyone local. 👍
Well, I am now even more excited to see your project. You are adding my favorite engine to my favorite utility aircraft. I was under the impression that this engine posed challenges for mounting the Skytrax gearbox since this Yamaha version doesn't have a mounting flange to easily bolt onto. I was working on my own solution to mount the Skytrax. How has Teal configured his?
He’s developing a new gearbox for the 3 cylinders. Should be available soon from the looks of it. If your not a member of the Yamaha conversion Facebook group go check it out👍
Have you ever tried practicing with electrical tubing (EMT)? Nice engine, looking forward to the rest of the build!
Never crossed my mind but it might be a cheap way to get the hang of notching tubing👍
I agree completely. What’s the point of “experimental” if everyone just keeps using the same old engine technology from the 1930’s?
Yup, the crazy prices get me as well.. If everyone just keeps paying it, they’ll never come down. My engine is literally 1/4 the cost of what this airframe is designed around and will be light years ahead in tech and engineering development. Time will tell if the effort was all worth it🤷🏻♂️
@@Project2Aero Price is definately a driver. I'm researching the TitanT-51. I can put a 400HP GM V8 on it for a fraction of the cost of other engines. And when it "wear's out" I can just replace with a zero time unit from GM, again for pennies compared to the cost of rebuilding one of those engines from the 1930's.
@@Blackcloud_Garage my thoughts exactly sir! A new long block Yamaha is about 5k from the factory. No rebuilding needed, just swap it out!
Well congrats on passing me on the subs! I need my new camper ASAP hahahaha
Lol, yea you need to go get that thing so you can get some more videos out! Anyone interesting in camping related content go check out RotoCityTech👍
Very nice video! Is there a part number for the complete motor from Yamaha?
Cool, I love this route. What 4130 wall thickness have you used for the mount, out of interest?
The firewall stubs are 1/8” wall 9/16” and the rest is .049”
Japanese reliability. That’s what I like up in the air! 👍🏻👍🏻 can I have that turbo for my miata tho?
It’s probably about the right size for that car.. lol
Good progress. Will the battery, contactors, and ECU be in front of firewall?
Battery and starter relay will be on the forward side of the firewall, everything else you mentioned will be behind the panel. Thanks for watching Chet👍
What are people doing for sunshades for the skylight for these? I have an S 21 on order and don’t want to be cooking in the sun. I saw a neat device in a sling 2 that had a sliding accordion type sunshade.
I’ve been thinking a bit about that as well but am far from making those kinda choices. I’m considering tinting the skylight prior to final install to help with that I think..
Great content. I want to install a Yamaha sled as well into my very light experimental. Can you tell me how you bought a brand new engine? I thought only option was to buy used.
It depends on what Yamaha your after. This is the 998 turbo 3 cylinder model and is found in both Yamaha and Arctic Cat snow machines. Yamaha won’t sell a motor to you but Arctic Cat will. I just went online to and ordered it👍
Is that engine normaly at a slant or did u just decide that's the way you wanted it? Are you gonna fire her up on a stand to give us that thrill you know we all been waiting for? You gonna go with straight exhaust or does it need some kind of muffler for back pressure?
I’m a long ways from starting it but it’ll happen soon enough. The angle is how it sits in the snowmobile as well. Being turbo, back pressure isn’t needed but I do plan to run a muffler since I don’t want it to sound like a rice rocket Honda Civic with a fart can on the back.
Well, there's an engine option that came sizzling in out of left field! I admire and respect the experimental aspect of your choice. What prop(s) are you considering?
Lol, I’ll be using a 3 blade carbon NR brand prop (ground adjustable).. it’s been used on several of the apex builds and seems to be a good fit👍
Suck to hear about the file issues. Was hoping you would go in depth on this seeing as it’s a first
Yea I hear ya, I had shot the whole process but it is what it is I guess. I tried to talk through the steps I took as best I could. I’ll get in more detail as it continues👍
Wow, this was unexpected - but I wonder - what are you going to use to reduce the rpm to the prop?
Check out www.skytraxusa.com/yamaha3cylinder
Curious as to what you think the fuel burn will be? What type of fuel do you plan to run? I was thinking about the 915, but man is that a steep price?
I suspect someplace in the 5gph range for cruise. I’ll use 91 mogas unless I can’t find any, then 100ll is an acceptable alternative.
Mind if I ask you how many hours per week of work you’re putting in?
Really probably about 6-8hrs a week..
Was wondering what the total engine weight is when you have it all done?
Not sure yet, but I’m expecting it to be around 200lbs. Something close to a rotax 915 weight and about 100lbs lighter than a 180hp Titan. I will weight it all at some point when it comes off for final “finishing”.
Your videos are excellent and I have nothing but respect for what you're doing but there are some major gaps between drilling seat rails and hanging an engine on the front. Let's hear more about why you chose the Yamaha and how the custom engine mount came together. I'd also like to know about the performance comparison between the Yamaha and the Rotax/Titan. I'd like to build an S-21 and your opinions affect my decision. We don't fly the same flag but thanks for your service just the same.
Thanks bob👍 yes a one off engine choice is a lot to take on for sure. The performance of this specific engine is a bit of an unknown as there are none that I know of flying currently. There are however many apex installations performing well out there and this engine is somewhat similar. At similar weights to the rotax lines it should be a great performer with the added HP. I’m honored you view my opinions with such weight but do know I don’t recommend you follow me outside of what rans has tested and proven to work unless your willing to to take that responsibility on and savvy enough to go about it safely.
As for why I chose to go down this path, power to weight and dollar to weight can’t be matched. While still a bit unproven, I felt it was worth the chance to see what happens.
@@Project2Aero Thanks for the reply. I'm very interested in the results. I'm actually an AME (Canadian A/P IA) No doubt I could make it work but it's way cheaper to learn from your experience.
@@bob365gtb4 I bet you can handle it then👍
@@Project2Aero You're doing a great job. Keep it up.
What ECU are you planning to use? Thanks
Greg, I'm working with the guys at Hypersports (facebook.com/Hypersports-671038766253368) for the engine management.
Another option will be brought to market from Bryan Dacus at bdturnkeyengines.com/ in the near future so there will be options out there..
I'm building a rans 7 and have been thinking about which yamaha engine to ho with
Nice! If you haven’t already, join the Yamaha conversion FB group. It’s full of good info! Can’t wait to see what you come up with👍
I have and I’m thinking real hard on the three cylinder
@@bennietipton2820 it’s promising for sure. Time will tell..
Mount that turbo with the factory sled exhaust manifold and turbo pedestal.
I am leaning towards the factory location at the moment👍
What is the rated horsepower of this Yamaha Genesis 998.
Steve, Yamaha says 180 hp up to 10k feet. It’s capable of more and like any engine will operate most of the time at much less. Getting excited about it!
@@Project2Aero Very Nice ! WORK ! 😏
Where can I get more information on the engine?
There is a Face Book group called "Yamaha Aircraft Conversions" that is full of great info. Also you could reach out to Steve Henry at Wild West Aircraft or Teal Jenkins at SkytraxUSA.
@@Project2Aero Thanx! How do you like the engine so far? How are your numbers?
@@AndyTulenko I'm still building so I don't have any performance numbers for you at the moment. Hopefully be wrapping up things this fall/winter.
where did you get the engine from and how much?
I ordered it from Arctic Cat. It’s only a long block and pretty much came like you see it there. It was about $4300 and I’m predicting about 14k by the time I get a working firewall forward package including the gearbox and prop. Nobody has one completed yet so we shall see what that really turns out to be.
@@Project2Aero good evening sir!
Does the $4300 include turbo, ECU and wiring?
@@falrus No, I've been sourcing those parts individually.