Webber 750 engine

Joined
Feb 18, 2010
Messages
2
Location
Penticton BC
Aircraft
300c 500c 206
Hello all;
I'm new to your forum, but not new to helicopters, I was just reading some posts on this site the other day. I design and build equipment for the helicopter industry and try to keep apprised on a wide variety of topics.
I saw the new MH1 aka Mini 500, (please don’t take offence to my ignorance to the differences between the two). and was interested to see that it is still evolving. Carbon fiber rotors kind of scare me, for one, they would be very light, having said that, I hope they are tip weighted. The difference between believing in God and meeting him is often found in rotor inertia. My experience with carbon fiber is: yes its light, no it isn’t very resilient to impact of any kind. My weave of choice is the carbon fiber Kevlar blend, very nice stuff, tough as hell.
Moving on.. I notice the MH1 is boasting an increase in horsepower, 4stroke power at that, very good. What make is the engine? During the development of a number of our products we have found the need for a power-plant that demonstrates a great power to weight value coupled with reliability, I know, that’s an oxymoron you say. Chasing the holy grail again.. but I have run across an interesting power-plant; The Webber MPE750. This engine is a little big for what we typically need an engine for but I was impressed by its versatility and power. Weber has taken an interesting approach to the MPE (Multi Purpose Engine). It is used in a variety of off road vehicles and personal watercraft, but Weber intended this motor to be a modular power-plant self contained and applicable to any number of applications. They have designed and sell the motor for use in projects outside their scope of marketing.
It comes in naturally aspirated and turbo versions, its fuel injected, the ECU is integral to the package and it is designed to be stand alone. Other attractive features are that it has its PTO either front or back, naturally aspirated is about 104 hp and the turbo version is 135hp overall weight is 100lbs! I know they make a larger version because it is in the Hydrospace sit down jet ski and its producing the 160+ range of Horsepower. Polaris also uses this motor in some of its quads and snowmobiles I believe.
Very cool engine, great reliability, a little pricey though, but we are talking aircraft here, safety and reliability should come first.
In my limited opinion this should be the engine of choice for kit aircraft of all kinds.
Check it out, and don’t overlook the marine version.
www.weber-motor.com/en/products/mpe-750/index.html
Feel free to check out my site as well www.heliap.com

Keep the spinny side up!
Kurt.
 
Curt,

This engine has already been discussed on the forum and you can look up the threads on it and read what has already been said. I agree with you and think this engine has great potential for experimental aircraft. I know that the Butterfly LLC has plans to use that engine in future models and I am sure others will also once they know more about it and it has a little track record, Thank you for bringing it up as we all should be checking it out more closely. It and the Yamaha snowmobile engine both should see a lot more action in rotorcraft in the near future.
 
Hey does anyone know what models of polaris Quads have a weber 4 stroke in them, or are they just in their snowmobiles & watercraft?

Brian
 
I don't think it is this engine as far as know only the snowmobiles have it. look for a FST or IQ amother engine to use will be the 660 tubro Artic cat.
 
Last edited:
polaris

polaris

The 2009 polaris has the 750. For 2010 or 2011 not sure which will use the new 850 weber. It is a cool concept. If you go to the polaris website and search for the turbo model, you will find it. You can even click on the engines and see it.

https://www.polarisindustries.com/e...rformance/IQ-Turbo-Dragon/Pages/Features.aspx

On the left side click on turbo charged fst engine and you will see it.
 
A new German gyrocopter, the Cloud Dancer II (manufactured by Rotortec in Germany), is going to be propelled by the new Weber motor. The engine will be downgraded to 130 hp.

-- Chris.
 
GyroDoug... Can you give any more information on the plans for using this motor on the Butterfly / Monarch gyros?

Thanks, GaryMac
 
Hey boys this engine is no toy!
I do own one of these sleds and it never stops leaving me in shear aw!
A 1000 cc arctic cat can run with it not bad but this one always can leave it behind more so on top end.
The 1000 ac is rated at around 175 hp but the torque is back around 100
Mine is 145 hp with a 6 second burst to 155 but my torque is around 150
I now have over 2000 miles on this sled with absolutly no problems and just love it.
when running with other 2 strke sleds it uses 1/2 of the fuel they use running together on the same trails and NO OIL! AND QUIET AND NO SMOKE AND NO NOISE!
I will never go back!
I would not even consider a yamaha just a big heavy pig that wont go in 2 feet of snow.
In a drag race the 1000 4 yamaha will keep up inch for inch to roughly 70 mph and then when the turbo and intercooler combo kick in it all changes.
It is a hard site to get into but Amsno publishes the shootout race results every year and the record holder for 3 or maybe now 4 years in a row have been the Weber turbo 750
May the RX 1 ton yamaha rest in peace!!!!!!!!!
 
Been watching these motors for awhile... I'm impressed more now that I've seen it it person. Amazed with the power there pulling out of em & the abuse there taking!
 
nice gearbox on that turbo engine from the SME site.

this is the engine we need to get out of the polaris sleads, someone has got to be in the snow looking for some.

racer?
 
I want one real bad, I wonder how much they cost.
I also wonder how much had to be changed from the snowmobile application.
 
You can get turbo (bare) long blocks starting at about $4500. But then you'll have to add intake, exhaust/turbo, intercooler, sensors, ecu, radiator, etc... So it's probably more cost affective to pickup a used machine.
 
Better off with the complete sled and selling what is not going in the air.

Not much needing changed to get one in the air and the actic cat t660 looks just as EZ. the raven redrive guy said he had 2 cats to sell. I was going to call me but here it is weeks later.
 
This looks like a real gut ache for Rotax, but then if you look at the title of the engine it is "MPE" (multi-purpose engine) so it had multi use as a design feature and this is what is making it so "usable" especially in our "aviation" use. looks like they have done a nice job on producing a custom gear box for it as well. Wish them the best of luck on sales growth and production in the market place. They might eventually get some govt contracts for "drone engines" and make some other "big" name manufacture a little nervous.

Tony
 
Now all we need is "proof of performance and durability" and the race is on.

Tony
 
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