Novarossi Keep ON .21 9 Port On/Road TUNED Limited Edition 

This is new Novarossi Keep On .21 On/road 2018 Edition Version.

The engine cranckcase is modified, for mount the rear ball bearing 16001, and not a special 16009.

FEATURES



Cooling head

This a 'Lighter&Lower evolution 3' type of cooling head. It is drilled and milled out to reduce the mass of the coolinghead which sits high up in the car and thereby lowering the Center of Gravity of the engine/car. 

9 Ports ABC Piston Sleeve

The sleeve has 9 transfer ports and an exhaust with booster ports.
The special shape and positioning of the ports, covered by a patent, improve the internal fluid-dynamics to obtain the maximum possible performance.

Crankshaft TURBO

The new crankshaft gives the engine a better balancing. This will reduce the vibration produced by the rotating and the alternating masses.

Rear Cover

The rear cover presents a round shape to optimize the filling and reducing the dead spaces. the steel plate is to reduce friction and to expand the lifespan of the conrod.

Gasket:
The inner shape of the gasket has a new shape, and with that more material. Together with a change in material these gaskets are more resistant to high temperatures.


Technical Data

C.Capacity : 3,49 cc 
Power: R.P.M. 40.100 Rpm
Bore : 15,88 mm 
Stroke : 17,66 mm 
Ports : 9 
Crankshaft :  14,50 mm Turbo Tuned
carburettor :  9mm metal + reducer 
Bougie : Turbo 
Main Bearing : High Speed