Murnan Modified have introduced the M12 2.1cc nitro on-road engine, the company’s most powerful .12 engine to date. Using Novarossi parts as the base the engine is modified in a way to deliver an extreme amount of torque throughout the entire powerband while being durable and easy to tune at the same time. The engine also has an exceptional mileage, as it was tuned to easily finish 5 minutes with fuel to spare.
New from Murnan is the RBM3X .12 touring car engine which has undergone extensive design changes from the previous RBM3. The improved design allows a new level of performance to be achieved and the 3-port design is race legal around the world. The features include new port timing, a new cooling head and the engine is hand-tuned for improved power output.
Click here to view the features and specifications
New from Muran comes the RBM5 which was designed for today’s most demanding drivers who want exceptional power and fuel mileage together. The RBM5 delivers both and is a great engine to use for Buggy racing. The engine parts are all made in Italy, and are of the finest quality, while the engine is hand tuned by Murnan. The engine design allows for smooth controllable bottom end with a high top speed and has a very linear powerband, which is easy to drive. To top it off, the fuel mileage is exceptional.
Murnan Modified Motors have released this M21 on road engine which has been specially designed by Uriah Murnan and built by the Picco Factory in Italy, using their state of the art equipment. This engine claims to provide unbelievable power throughout the entire range with unmatched power in the low, middle and top end.
Murnan Modified has announced that their RBM3 engine for 2011 is now available. The engine has an increase in power over last year’s model, without sacrificing much run-time. In development over the past year with feedback from some top level on road drivers, at top level on road racing events around the world, the new design has been track and dynamo tested to ensure that it is faster and still easy to tune. The engine is also still getting enough run-time to easily finish a 5 minute qualifier in any conditions, even with the most aggressive drivers. The power increase can be attributed to the new sleeve, crankcase porting, new crankshaft timing and a special ceramic main bearing. The crankshaft also has a new, more balanced design, which helps overall power and r.p.m. while the new carburetor allows for very easy tuning and restarting when the engine is hot. Finally the new cooling head design keeps the engine temperature over 20 degrees cooler than last years model.
View images of the internals here
The new Murnan Modified RBM3 engine has been developed by Uriah Murnan using the .12 RB Concept T9 as a base. The engine has undergone extensive internal modifications to make one of the most powerful .12 engine to date. Not only is the engine extremely powerful, it is also very fuel efficient and the smooth, yet aggressive, power delivery will leave nothing to be desired. The aluminium carburetor insert has been given a special shape to improve airflow and the motor comes with a ceramic main bearing. Five out of the top ten drivers at this year’s US Nationals used this engine.
Source: Murnan Modified [murnanmodified.com]
Murnan Modified Motors, in conjunction with Novarossi, have introduced what they claim to be the ultimate .12 on road racing engine, the M353R Modified. Based on the Novarossi 353, it has undergone the Murnan treatment and so the engine internals have been hand selected to ensure the best tolerances and then modified to Murnan Modified Motors specifications. This new engine includes a rear ceramic bearing and the cooling head has been etched with special marking to denote this special edition engine. Thought has gone into making the most powerful engine possible, while still making more than 5 minutes of runtime. This engine is intended for serious racing applications.
Murnan Modified Motors have released their latest beast, the hand modified Team Orion Wasp 12 CRF. Famous for hand tuning motors, Uriah Murnan has gotten his hands on this already very quick motor and did some great work to it. The engine now has more torque, more power, and much crisper throttle response, while maintaining very good fuel consumption. The crankshaft has also been lightened and reshaped to maximize power and efficiency.
You can view more pictures of the engine here… content
