rotary engine muscles a go-kart

[Mr Turdle]

I just came across this, and it looks like an interesting prospect for a motorized bicycle. I'm guessing that when it becomes available the price point will make it out of reach, but thought I would post it anyhow. Here is a video of a go-cart powered with it. Small size, 3.5hp, smooth power band.
https://www.youtube.com/watch?v=-g4dKZTnxHo

 

[Ludwig II]

The rated cc of rotaries has been a subject of argment for years. Will it fall into a 50cc category for transport purposes?

 

[Tony01]

Huh. I thought they were making a 70cc 5hp. I would not mind seeing one around 20hp. Would make for a very light bike.

 

[16v4nrbrgr]

Check this one out, it makes 44hp but it's not cheap!
http://www.woelfle-engineering.com/Produkte/produkte_XR50rotaryengine_en.html
These engines make karts faster than 125 shifters due to improving the power to weight ratio dramatically! Technically this thing's 50cc.

 

[Mr Turdle]

The rated cc of rotaries has been a subject of argment for years. Will it fall into a 50cc category for transport purposes?

Good question!
I googled how to detemine the size of a rotory engine, and it got confusing pretty quickly.

 

[Mr Turdle]

Huh. I thought they were making a 70cc 5hp. I would not mind seeing one around 20hp. Would make for a very light bike.

You are correct Tony. Sorry for not posting a link to the original article.
The engine in the cart is claimed to be 70cc at 3.5hp, but they are developing a 5hp engine.


http://www.gizmag.com/liquidpiston-xengine-rotary/43776/?li_source=LI&li_medium=default-widget