check this out, we just came across this on ebay and this is the first i have ever heard of this...

http://cgi.ebay.com/ebaymotors/RotaM...spagenameZWD1V



1300cc RotaMax Rotary Engine

170 HP @ 7,750 RPM

130 ft-lbs Torque @ 3,700 RPM

153 lbs

Gasoline, Carbureted, 4-Cycle Rotary, CDI Ignition, 40 AMPS Charging.

Based on the Wankel principal, our rotary engine design offers a high power-to-weight ratio, very low vibration, light weight, long TBO, low-cost maintenance, and a low parts count (only 2 moving parts in the single, 3 in the dual), yet it's big on horsepower and torque! High Performance and Power Sports enthusiasts are always looking for the next breakthrough. Our all-aluminum engine housings make our 1300cc engine half the weight of another strong rotary: the Mazda 13B. RotaMax can give your power application a measurable advantage in reliability, simplicity, endurance, and performance with strong torque across the power band! From designers to motor heads, from racing fanatics to power-hungry performance hounds, from scientists to future technology corporate R&D staff: if you're designing or building that one-of-a-kind, application, that next generation engineering marvel, a thing of beauty, you want it to be as powerful, and reliable, and eco-friendly as possible! For every Application: This is your engine!

 

here's a 1rotor.....


Specifications

Single rotor, 650cc displacement
85 HP @ 7,759 RPM
110 lbs
44.5cm L x 42cm W x 44.5cm H
(17.5”-L x 16.5”-W x 17.5”-H)
Gasoline carburetor (standard)*
Fuel injection (optional)
Electric starter
Spark ignition
Coolant pump
Metered oil lubrication system
32 Amp generator coil (standard)
Specifications for battery, exhaust
and cooling system provided
Metric standard design



here's their website

http://www.rotamax.net/

 

Ummm, buy it now of 7500? Ha, good luck with that.

 

wow! thats pretty interesting, i've never heard of this before...really cool! i wonder the longevity of this product and where its going...? huh.....

 

they are aircooled so they can have like 250 degree intake temps and pass emissions with really high exhaust temps

 

• There are several advantages to the charge-cooled rotor:

• The first is to fully vaporize the charge. This is important because a fully vaporized mix is inherently less susceptible to quenching. Complete vaporization also reduces the possibility of particulate formation in the combustion process.

• The second effect is an increase of the charge temperature itself. The incoming charge is heated to approximately 250 deg. F as compared to near ambient conditions for two and four stroke piston engines. This increased temperature also reduces the tendency to quench the combustion flame. While the preheating of the charge does decrease the volumetric efficiency of the engine, this loss is balanced by the elimination of cooling hardware and the advantage of more complete combustion.

• The charge-cooled rotary engine rejects approximately one-half as much heat to the cooling system as a four-stroke piston engine does. Consequently much of this heat ends up in the exhaust. This increases the exhaust temperature where it sets up a naturally occurring thermal reactor for reduced emissions. This higher quality exhaust energy is available to be extracted as useful energy by, for example, an exhaust driven turbine.

• HC and CO emissions can be eliminated from exhaust either catalytically, by the use of chemical reaction, or thermally by burning them with excess oxygen. In order to burn the residue hydrocarbons, the exhaust gases must be resident at a temperature of at least 1100 deg F. To oxidize CO requires a temperature of 1300 deg. F. With exhaust temperatures in 1400-1700 deg. F ranges, the Rotamax engine has more than sufficient thermal energy to minimize these emission components.

 

they even can run on diesel? WTF
• The Rotamax engine has a unique advantage over the piston engine in its ability to operate on the traditional four-stroke Otto cycle using diesel fuel. Since diesel fuel has a very low effective octane rating (40 to 60) it would detonate in a piston engine where the fuel/air mixture is homogenous and combustion begins through spark ignition. The lengthy combustion chamber of the Rotamax engine provides as opportunity to slow the combustion process and allow the Rotamax engine to operate using diesel fuel. This capability was demonstrated under contract to the US Army

 

I believe that Roto Max is currently under contract with the military to provide rotary powered generatorsets as well as rotary powered water pumps. they were listed in the GSA gatelog several years ago, but I don't get it (catalog) anymore.

kenn

 

thats pretty cool, it shows that an all aluminum rotary certainly can be made, and sold....

 

Rotamax is good people. Met them at Revolution this year. If I had the money, I'd be building a go-kart using the single rotor...

 

I'd be looking this way for a rotary go kart motor.

http://www.uavenginesltd.co.uk/

 

KOOL! wow, this is amazing.

 

https://www.rx7club.com/showthread.p...hlight=rotamax

 

Here is an all aluminum two rotor, 588cc, 90 horsepower engine for aero use:

http://www.uavenginesltd.co.uk/index.php?id=405

We ran one of their little one rotor engines here at the lab, and it is as obnoxious sounding as my peripheral ported 13B race car.

 

did you actually get them to sell you one, ive heard that they arent too keen on selling engines or even parts unless its for a UAV. I think the 2 rotor version has parts that are interchangeable with the Norton engine

 

the mazda rotary would have too be more reliable....

 

here is a local non mazda rotary engineering facility:

http://www.freedom-motors.com/

also can run diesel