Murnan Modified RBM3X touring engine

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.

Features:
– 11.9mm tungsten balanced crankshaft
– Exhaust side lubrication holes
– New port timing
– New cooling head
– Black coated crankcase
– Special low friction front steel bearing
– 11.9mm ceramic rear bearing
– CNC machined piston
– Hand-tuned

Specifications:
– Displacement: 2,1 cc
– R.P.M. (max power): 43.500 RPM
– Practical RPM range: 6,000 – 45,000
– Bore/stroke: 13.70/14.25 mm
– Sleeve: 3 ports
– Rear ball bearing: ceramic
– Front ball bearing: steel
– Crankshaft: 11.9 mm balanced
– Carburettor: Aluminium – 6.5 mm – slide
– Glowplug: Turbo

Source: Murnan [murnanmodified.com]