Check this out!

This site may earn a commission from merchant affiliate
links, including eBay, Amazon, and others.
It's not a two stroke. That is a four stroke. You can find equivalent rotary engines in old snow scooters. Or in karting. But they are all WAY too big for Fifth scale. 1/3 scale would be closer into what you would need to build to use that kind of engine.

And actually a 20kg engine for 25hp. That's heavy. It would not be my choice. But the idea of a correct size wankel would be very interesting.

I remember there was one manufacturer (I don't remember the name anymore) that builds suitable size rotary gasoline engine that just might fit a 1/5 scale. The problem was price which was 24.000$. That is one huuuge inconvenience :D

tizdaz, that is a RADIAL engine, not a rotary engine. Uses normal pistons and one master conrod with slave rods.
 
Last edited:
Radials are engine porn as is their sound. Best sounding engine type ever made in my opinion. Unfortunately they are heavy and underpowered for their size.
 
Wankel engine in karting is Aixro XR50, 50hp, 300cc volume.

The suitable wankel for 5th scale is Cubewano 42 with 11hp. I asked the price from Cubewano back in 2009, it was 26.500USD. The company is in UK.
 
renbar said:
anybody fancy one looky here come on guys get ya money out and please somebody fit one into a largescale i bet they sound awsome on full chat


http://www.cubewano.com/products/engines.aspx
Click to expand...


That just looks the tits! Its amazing no1 has put anything like this in a large scale car before! Especially when you look at the bennefits in real cars like the mazda rx7 the engine is so small it just sits on the bulk head! And capacity wise the real thing is only a 1.3litre unit with the power equivelant to a 2.6litre! I know in the uk they had to be registered as a 2.6 because of this. Im not sure if it was like that worldwide.
 
i did look at getting a early rx7 in the mid 90's,that was down as a 1.3 on the log book but as you say there more like a 2.6 and they sound like a load of wasps in a coke can but they fly
 
There is an induction stroke, compression stroke, work stroke and exhaust stroke. But not in the conventional way "up-down". Rotary engine's rotating center section creates fill volume displacement changes like the conventional piston engines and timed valves work accordingly.
 
Back
Top