What an Incredible Engine!

[@philhill184]

I learn so much every time Steve talks. I’m not a pilot but if I were, Steve would be building me a XL. The more I hear about the design, motor and console the more I want to learn. Thanks guys for the videos!

[@Calvin-xp4qp]

I remember when Yamaha put out the first 4 stroke snow machine engine back in 2003/4? The sled was an overweight turd, especially if you were at altitude/hill climbing. Then, someone put a turbo on it and the rest is history. Happy to see them in aviation

[@stevecarlisle3323]

Arctic Cat produced the 4 stroke model in 1999. Well Yamaha produces great engines, Suzuki is better, and in many more markets than Yamaha.

[@Calvin-xp4qp]

@@stevecarlisle3323 I will always be an Arctic Cat fan. To be honest, I own all four manufactures but kick myself in the rear for not getting a 2001 SRX. I ordered one but my dealer failed to come thru...sigh

[@warviking7647]

​@@stevecarlisle3323artic cat produced the first turbo 4 stroke sure, but it didnt really perform really good. The yamaha rx1/apex was a diffrent story. 200 hp os cilds play, 300 hp is no problem. There are sleds out there with almost 600 hp on a 1 little yamie engine

[@carveroutdoors]

Can't imagine being behind 400hp in something that is that light. Wild and really cool yall!

[@SteveHenry]

Thank you! It is really fun

[@davidlionberger4215]

This as well as all videos created by Steve and his daughter are in keeping with the tradition of an incredible vast knowledge of mechanics starting in his youth and continuing on into the passion of aviation. His willingness to share this to those of us just starting in the sport of STOL aviation is testimony to the infectious enthusiasm that permeates all of his videos. While I will never likely be using the horsepower that he is able to harness, its nonetheless comforting to know that the structural parameters and durability of the platform he is using his exactly the one I own. If it can take the stress and strain in his different variations you can rest assured that the limitations that aircraft provides are far greater than what I am capable of imparting on it. Again Bravo on this and many other educational videos..... Keep them coming !.

[@blancolirio]

Excellent briefing Steve! Thanks.

[@SteveHenry]

Thanks Juan!

[@TS34675]

Hey Steve - been watching you for a while. I watch another channel called Cleetus McFarland and he's gotten into aviation - specifically STOL with his Carbon Cub, and I think it would be magical if the two of you could link up. I know he would definitely enjoy seeing your skill in action and hearing your vast knowledge of STOL. I also think it would do a massive service to STOL to be exposed to his broad fan base who instantly gravitated to it. I'm just a 40yr old dad vicariously living through the two of you, but I have a feeling you guys would go together like peanut-butter and jelly.

[@Doug_Narby]

If Cleeter doesn’t already know about STOL drags he needs to

[@danmcburney3247]

I agree 😊

[@SteveHenry]

I met Cletus a couple months ago and it seems like a really fun guy. That would be pretty cool if we could work something out.

[@nickbayer7847]

Really appreciate ALL the little details Mr. Steve 🤠🤠

[@patrickheavirland3599]

Hello from Minnesota! Great episode!

[@FlyingDarkLord]

A very informative video! I love hearing about the technical aspects of that aircraft 😊👍🏼

[@bobwilson758]

This power plant you guys built is really nice ! I think your setup here is on the way - Super cool ! What a neat country camping aircraft ! I love it -

[@SteveHenry]

It would be great for camping! Thank you 😊

[@MrHansen]

Great combination of engine/plane and pilot! Been following Steve kick butt in the STOL competitions. Keep up the great work!

[@SteveHenry]

thank you!

[@captbad9313]

Omg, between you and Mike Patey, I'm a fish on a line. You rock. I've spoken to you on the phone some time back, but can't find your number yet. On an old phone probably. Just Wow!! Thanks, great dialog and info

[@SteveHenry]

thank you!

[@dgs0011]

Awesome video , and what an amazing engine . thanks 👍

[@SteveHenry]

thanks for the comment! -Sara

[@joshmyeraviation]

Cant wait to see you rock this weekend! Youll have to send some pictures.

[@SteveHenry]

Its going to be a good weekend for sure :)

[@bertruttan129]

I run a RX-1 in my gyrocopter and one of Teal's original adapters for the rotax gearbox. No problems 5yrs running. Water pump is in tip top shape. Although I don't ring out my engine like you do racing I anticipate I won't run into water pump issues. Keep kicking it and thankx for all the yamaha engine development! Why ppl think Rotax is the bomb, well u described that well enough.

[@markh672]

I know Teal has a Yamaha engine in his RV and appears to be having great success with it. You guys should get together and design a FWF for the RV’s. With the price and waiting times for a Lycoming, think there’s a huge untapped market there.

[@MN-RV]

I'm starting on an RV7 this fall and would love to run a modern engine like this. My concern is with weight and balance, but if Teal has that figured out...

[@Project2Aero]

Killing it Steve! Love your setup👍

[@SteveHenry]

Thank you!

[@dougarroyo794]

Awesome setup Steve.. cant wait to see it in action. perhaps you can do a video showing what it can do. another great video Sara thanks

[@SteveHenry]

New video coming out today! Thanks for watching -Sara

[@tdbassman1]

What is the installed weight, and I wonder what the highest time hours are on these so far?

[@SteveHenry]

Install the weight for everything is around 200 pounds. I think there’s only a couple of us even flying with one of these engines so far so no one has very many hours at all yet. At least not that I know of.

[@captarmour]

Man o man this is a nice motor! Wish i had a part number to see if my dealer down here in Dominica can bring in one for me!

[@Coops777]

Great video thankyou Steve and Sara. With 400 HP in front, is pulling to the left much of a problem when applying the power on take-off? Also, what is the recommended TBO on the engine?

[@SteveHenry]

Yes, I hold a lot of right rudder on takeoff! I don’t think anybody knows the TBO

[@kidkhaos6427]

I'm building a custom engine right now myself, nothing this crazy though. I'm building it to be able to handle 11k rpm and plan to run it no more than 6300. Same story though, finding the toughest possible internals and hoping for some reliability 😁

[@skyepilotte11]

Very nice !

[@Stubby0266]

If you going to be at the EAA 292 Fly In and STOL Event in August, I have a small challenging airstrip I would like to see if it could support a Highlander. The strip is around 6 miles from the 7S5.

[@SteveHenry]

It’s extremely unlikely that I’m going to make that event this year.

[@MISTERLeSkid]

I'd love to know what the TBO is on that little 998 producing so much power. My gut tells me 200-300 hours. I guess for such applications, longevity isn't as big of a concern as it is in GA.

[@tomcoryell]

I think part of your success is your own personal power to weight ratio. If the pilot is light, the plane doesn’t need as much power to overcome gravity.

[@mitto4504]

Cleetus has to meet this man.

[@desertfox3860]

Nice! Thanks for sharing!

[@SteveHenry]

Thanks for watching

[@paulg.yarger8797]

Yee Haa Steve! Yee Haw! Powerd Up!!!

[@justinninke6405]

Hey Steve, do you have weighed the engine in airplane configuration and stock form? Just trying to understand differences to something that makes similar horsepower to a low horsepower version of this, around the 270-300hp range, such as an O-540 or IO-540 or similar.

[@justinparker7795]

Okay, What is it going to cost me firewall forward? And @ 9:47 in the video there's an airplane behind you in the hanger , How much ya want for it? I'm down here in Hal country , Elko Nv.

[@SteveHenry]

Hi Justin! Get ahold of us at wildwestaircraft.com

[@justinparker7795]

will do thank you.

[@timduncan8450]

Love this channel and this engine!!

[@flyingmaniac3827]

what turbo are you running Steve i am looking for on on a 998 genesis engine to

[@goldknight40]

What kind of burn rate on the stock version? Thinking of replacing the ea81 i run now

[@SteveHenry]

Fuel burn is going to be close to the same as other engines, if they are tuned correctly and pulling the same load.

[@BigWheelHawaii]

Talented Man,,,,

[@trentcarlson4857]

Great stuff, makes me want to Start a project with one of these Yamaha’s.

[@SteveHenry]

Great idea 😁

[@stevetheborg]

since i was i child, i have dreamed of building my own airplane. recently i have been imagining a slow toroidal split level counter rotating multi blade design powered by a small turbo engine. maybe even active noise cancellation via multiple small speakers around the prop shrouds. i want to be as quiet as a hot air balloon floating by.

[@chippyjohn1]

What RPM are you running it at? How many bar of boost to make the 300KW?

[@211ratsbud]

Dark Aero should have went with a Yam!

[@vr6chrisvw]

What are you using for the turbo oil scavenge pump?

[@Blackcloud_Garage]

Really interesting engines. I'm always wondering how hard is it to find mo-gas at airports. Is it widely available at FBO's?

[@SteveHenry]

It can be pretty hard to get mogas at airports so then we just put in avgas.

[@permastone1]

What turbo on your motor Steve?

[@dustinalexander4620]

You've made a helicopter. 😂🚁

[@bradsmith4004]

Definitely interested in changing out my rotax uls for this ! I have a Kitfox 7 though. How much different are they?

[@SteveHenry]

They are a lot different. But they are similar weight and size.

[@Jack-ne8vm]

Wonder if there's an electric clutch for propeller reduction so you could use 6 blades.

[@PistonAvatarGuy]

A centrifugal clutch would work, that's what the gearbox from Auto PSRU uses.

[@stevemyers2092]

Steve can we have a constant speed prop on the Factory spec 275HP turbo yamaha? I want to have an Amphib plane with some punch for getting off the water. I live in BC and we have allot of smaller high elevation lakes. 180hp doesn't cut it all the time. and more than that and you are getting heavy.

[@SteveHenry]

Yes, you can put an air master electric constant speed on it if you want to.

[@danmcburney3247]

Always enjoy your video's but this was great getting to here all about the new engine !!!! Thank you 😉 an super glad someone put a little of Sara in there to ❤😀

[@RICHIE_RICH89]

That engine is sick. Excellent power. Owe yahmaha 998 turbo sidewinder😊 i can get massive power out of them. I set records doing built sleds im out of wisconsin few miles from eaa wittman field area all the jsts buzz me. We pushed 600 hp out of one but to keep reliability 500 is reliable range for the builds we been doing. Check out our osp outlaw yahamaha nytro 😊😊😊 i knew you had a turbo. You want dependability too. The new sidewinder engines can put massive power. I like the apex motors 😊. All yahmmys are insane. Stick to yahmaha id go to the edge of the earth with them. If you come to eaa let me know id love to go up if able . Im a few blocks out. One stop performance really can crank some stuff up. Man i love it i was watching your vids of you cooking 😊 run em open exhaust i love it. You can get a kit that opens and closes electronically but everythings weight.¹ you would think im coo coo if you seen me tuning my sleds im out all night playing but i learned them well from it. I am asuming your using the nytro 1049cc god i love that motor but ill say the newer sidewinder motors are much more capable and lighter.different spund though . The older apexes ypu could get stupid power out of them. I dont know what your allowed but the new polaris rzr makes a four cylinder and man that can take a piss pounding and ive seen 1000hp out of them from a place i know thats really good in florida. That new four cylinder is ridiculously tuff. I am more partial to yahmaha though. But at the end of the day the rzr r 4 cylinder is just meant to take boost. Id really like to go up if you come to eaa. You know alot and seem like a gu ru . I love it. Those engines done right can really take a beating. Yamaha is my favorite ever . A billet blocks the way to go. I know guys that makem . Thumbs up all day. I dont know what your allowed to do though. I still love yahmaha im just thinking out loud. Throw me in there please if you come to eaa this yr my company does all the traffic control out there. Contact jamie at stom companies plz we are just a few miles from eaa. Thats are home.

[@jorbedo]

Supercool Steve!, which ECU? Motec or AEM? Using 2 electric water pumps helps to increase the max continuos power? Or still running on the 160+ hp? Yamaha have to hire you and Teal's to become development heads for the incoming aircraft emgines!

[@SteveHenry]

I use a Hypersports/ Link ECU.

[@djal1030]

How to contact Hypersports?

[@timduncan8450]

When is the next engine focused video?

[@ac2-rm141]

I own a Yamaha MT09SP motorcycle, it has an 890cc three cylinder and is a spirited motor. Had no idea the engines from snowmobiles were being used in aircraft (Rotax?). Thanks for this video and all the best to you Mr. Steve.

[@RaphaHey]

Im a newbie looking for guidance on what makes an autoconversion reliable. I desperately want to lower costs for GA, but I don't want to risk safety or fall prey to a low price tag due to ignorance.

[@curtispechacek1814]

Steve, what would it cost me to build a good 300 Hp Version of what you have there with the 3 cylinder engine and 4 blade prop. I know that is hard, your best guess.

[@SteveHenry]

I think you can do a firewall forward if you put it all together yourself for about 25 to 30k for 275 hp

[@youtoo2273]

I wonder how this compares to a LS3 engine which make 426 Hp which is a stock engine with no modification, and weight is 410 lbs. You can get a LS3 engines for around 5 K. There must be other reasons that makes Yamaha a better engine. Is it more relievable or lighter?

[@SteveHenry]

It is much lighter

[@travisw9071]

Cool

[@michaelspunich7273]

Awesome! Do people know what the TBO is?

[@SteveHenry]

I don’t think anybody knows that yet.

[@VeteranAviator]

I’ve been under the impression that this airplane is useless for travel. Do you actually travel and recreate in your race plane? I’d love to see some backcountry flying if you do!

[@SteveHenry]

We are hoping to get some time for the backcountry this summer! Our competition keeps us pretty busy but it’s an excellent backcountry airplane 😁

[@propz0ut545]

Looks like my 2016 Yxz1000r lol

[@robertbelcher5068]

Have used the electric Davies Craig water pumps on prime power diesel engines running over 10k without a failure if the unit.

[@Mike-01234]

Usually mechanical water pumps don't fail they are so simple in general with most engines. Yamaha must have had a bad design. Rest of the engine is very well built.

[@Bushmasterpilot]

Goodbye EdgePerformance???

[@SteveHenry]

Edge Performance is a good company, and I still have one of their engines on Yeehaw6 but for me Hypersports is a better fit at this time.

[@ecomandurban7183]

🤗🤗💯💯

[@chrishenniker5944]

I’ve heard about people putting motorbike engines into small cars but this might be the first time I’ve heard of people putting one in a plane.

[@L2FlyMN]

The Yamaha engine has become the new rage, & a lot of sleds are now being destroyed, simply in order to get their engines. 2 strokes are simply getting to expensive to run, especially when a gallon of good quality 2 stroke oil is up to $50 or more!

[@SteveHenry]

I don’t think very many people are buying sleds anymore for the engines, most of us are just buying new engines.

[@joshhhab]

Just try to install Toyota Prius electric water pump

[@Patrickakustisk]

Koenigsegg Gemera 3 cyl engine have the power you need 2 litre 600 hp

[@warviking7647]

The 4 cyl yamaha 1 litte can be tuned and buildt for 600....and is probably cheaper...

[@guillermoplatero1891]

Look that ftuuuuututututu

[@johnrisher3007]

I'm sorry for me i would not want a clutch on an airplane propeller

[@มดดํา-ภ5ต]

เรียบง่ายแล้วก็ยอดเยี่ยมมากมันเป็นเครื่อง yamaha

[@IsakHtta-ub7bu]

Country musikk

[@robertd7073]

your nuts jr...

[@Salzbuckel]

What a stupid commercial, who would believe that beeing honest independent reporting

[@harborside10]

Steve, things have changed and probably not for the better. It would be nice if Formula One stuff didn't make it's way into American aviation. I'm not blaming you but you're at the forefront, like it or not?

[@chippyjohn1]

Lycoming and continental were obsolete 40 years ago. This engine design is 20 years old. Times have changed for the better.

[@tracygrimes7324]

"promosm" 🤩