Why are Rotax engines limited to 150/160hp?

[Racerx]

With the weight you're saving put a parachute on it, worked for Cirrus.

Having a lighter engine means the cg moves aft making spin recovery more difficult. Adding a chute most likely makes that aft cg worse. Unless you plan on packing the rocket in the cowl.

The 914 is 30 pounds lighter than the o200.

 

[Pinecone]

Having a lighter engine means the cg moves aft making spin recovery more difficult. Adding a chute most likely makes that aft cg worse. Unless you plan on packing the rocket in the cowl.

The 914 is 30 pounds lighter than the o200.

So you move it forward. Or use a heavier prop.

 

[rockwoodrv9a]

I have seen videos of the Yamaha EPeX engine. They have a series of up to 300 hp at quite a bit less than Rotex in cost. If I ever have to replace my 0-320, I will consider the Yamaha. I have no connection with this company but they have quite a bit of info about the engines in airplanes.

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[Checkout_my_Six]

Why don't we have larger Rotax engines?....because not every design scales up easily.....and the market may not be there.

 

[wanttaja]

The 914 is 30 pounds lighter than the o200.

So you move it forward. Or use a heavier prop.

Or...you just add ballast. Do what you can to shift weight forward (battery, heavier prop, etc.) then add a set of steel plates as far forward as you can. 30 pounds is equal to about 110 cubic inches of steel. That's a set of 10x6 plates about two inches thick. Need even less if you just oversize the tubing in the mount.

Ron Wanttaja

 

[STHardin]

Rotax seems to be loved by a lot of people, even preferred over the Lycoming/Continental in many situations.
Why don't they produce engines up to 300 hp to compete with Lyc/Con? Is there something fundamentally limiting in their design?
It seems like there would be a huge market if they can make engines for Cessnas 172/177/180/182/185/210s, Bonanzas, etc.

I'd love to install a pair of the Rotax 916iS on my turbo twin comanche, it currently has the IO-320 160hp engines with the RaJay turbos and I can only imagine the difference I would get out of a pair of the 916iS engines, would definitely be alot smoother, probably faster at half the fuel burn and burning mogas at that.