Novarossi ROMA .25 Truggy Off Road Engine (7 Port Turbo)

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About Novarossi ROMA .25 Truggy Off Road Engine

Cooling head: The cooling heads of the ROMA.21 engines are made lighter by making aditional holes in the cooling fins. This reduces the overall mass of the engine. Rear ball bearing: The outer diameter of 25.80 mm has been adopted in order to avoid ring distorsions and to increase fatigue resistance. Carburetor: This carburettor is made from plastic and have a sliding throttle valve. (reverse type) Sleeve: The sleeve has 7 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: The Turbo SG crankshaft is made from high quality steel. 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. Glowplug: The glowplug of engine is a Turbo type glowplug. Turbo glowplugs have a different shape than Standard glowplugs and therefor are not interchange able with engines that are using Standard glowplugs! Cilindrata / Displacement 4.04cc. Potenza massima / Max. power -- Hp. R.P.M (Max. power) 37.500 R.P.M. Regime di utlilizzo / Practical range 6.000 ~ 42.100 R.P.M. Alesaggio x corsa / Bore x stroke 17.10mm x 17.60mm Accoppiamento Sleeve N. Travasi / N. Transfer ports N. 7 Codice / Code 08500-25 Cuscinetti Ball Bearings Anteriore / Front Acciaio / Steel Posteriore / Rear Acciaio / Steel Tipo d'avviamento / Starting Starterbox Albero Crankshaft Tipo / Type 14mm - SG Codice / Code 15000-25 Carburatore Carburetor Tipo / Type 9mm - Scorrimento / Slide Materiale / Material Plastica / Plastic Regolazione / Adjustment Singola / Single Codice / Code 24069 Tipo di candela / Glowplug type - Codice/Code TURBO - C6TGC Tipo di scarico / Exhaust position Posteriore / Rear Tipo di miscele / Fuel type Consigliata / Advise: 25% Nitro peso / weight gr.