Novarossi Pre-Run Engines
Novarossi Pre-Run engines new engines that have been run by the Novarossi factory technicians. The engines are run for a designated time to help the break-in process. This also helps check for any flaws or running issues. Once the process is finished, each glow plug is replaced and the engine data is recorded and documented. Each engine is given a certificate with this data such as RPM.
Please Note: Although the engines are pre-run, they are not ready for a race tune. It is recommended by Novarossi to run 3-4 tanks through your pre-run engine before leaning it out for a race tune.
New R4/18 conrod, redesigned and made with a special aluminum alloy that allows it to have a high resistance while maintaining the lightness and performance of the previous R4/17.
The crankshaft is grinded to increase the mixture flow and has a special shape to reduce turbulences inside the crankcase. The balancing is done by three inserts made of tungsten alloy and the inlet has a silicon filling to reduce the weight of the crankshaft to improve acceleration. The durability has been significantly improved with the DLC coating.
Rear ball bearing:
The rear ball bearing has high quality ceramic balls to minimize wear and inertia to improve acceleration and fuel consumption.
New compact carburettor:
The new three tuning needles gives a better idle and improves the ability of the engine to return to low rpm after throttling.
The sleeve has 9 transfer ports and an exhaust with booster ports. The special shape and positioning of the ports improve the internal fluid-dynamics to obtain the maximum possible performance.i.
The underhead designed to work with a mixture of 16% nitromethane (code 28038), but optionally the engine can be supplied with a underhead to operate at 25% (code 28025).
New head, redesigned to improve the flow of air and thus increase cooling and ensuring an optimal center of gravity.
- Displacement: 3,49 cc
- Bore x stroke: 15,88x17,80 mm
- Sleeve: 9 ports
- Rear ball bearings: ceramic
- Front ball bearings: steel
- Crankshaft: 14,5 mm – DLC - turbo - tuned
- Carburetor: aluminum - 9 mm - slide 3 adj.
- Glowplug: Turbo (CT8)
- Exhaust position: rear
- Starting: standard
- Weight: 341 g
- Carter: Black
- Head: Fuxia - New form