new novarossi .12 competition longstroke
Novarossi long-stroke RR12L engine
News of a new Novarossi RR12L long-stroke competition .12 engine is beginning to surface. The new RR12L will be available in legal 3-port trim for sanctioned racing in the US and abroad, and it will also be available in a 5-port turbo configuration for outlaw classes and non-sanctioned racing.
The new RR12L features a bore of 13.7mm and a longer stroke of 14.25mm. The current NS12 engines have a 13.8mm bore and a 14.0mm stroke. Difference may not appear to be much, but relative to the engine size, it's a significant change.
The longer stroke will give the RR12 more bottom end punch, which will be ideal for 200mm touring cars.
Specs
legal 3-port
Bore: 13.7mm
Stroke: 14.25mm
Ports: 3 or 5
Glowplug: Standard plug for 3-port
Crank diameter: 11.5mm
Claimed bhp: 1.52 (3-port)
illegal 5-port
CAPACITY 2.1 c.c.
POWER 1.6 H.P.
RPM 43.500
STROKE 14.25m/m
BORE 13.70m/m
PORTS 5
SHAFT 11.5 mm
HEAD Turbo