Murnan Modified RBM3 .12 engine
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]