POLINI THOR 200 EVO
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¥28000
原价：￥0
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服务热线 : 18126387187
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Polini Motori is glad topresent the new Polini THOR 200EVO, which means never ending technical evolution for PoliniMotori. The THOR 200 EVO engine has many improvements thanks to the newfollowing features:
• New transfers and exhaust diagrams
• New head drawing with embedding in the cylinder
• New crankshaft with filling inserts
• New cooling shroud And a modification for the Walbro carburetor
All these mechanics improvements concretize in advanced technology, betterperformance, and extraordinary weight/power ratio and above it is possible toexploit all the engine power.
The cooling is better after a careful inspection of the air flows for theengine cooling and thanks to the new cooling shroud which keeps the operatingtemperatures under 10-15% (in standard conditions) increasing the enginereliability.
The most important development refers to the carburation. Polini has been ableto develop both the models together, one equipped with bowl carburetor and onewith Walbro carburetor. And during this stage it has been clear that to finishthe job it was necessary to follow two different ways:
- Thanks to the upgrade the models with bowl carb proved to be reallyperforming with a constant power output at all rpm, contained temperatures andreduced consumptions. Furthermore it features a torque increase and a widerengine range. Now the engine reaches 8000-8200 rpm. It is recommended the useof a propeller with more pitch to better exploit the engine trust that the newThor 200 EVO offers.
- To find the best Wabro carburetor setting the opening of the throttle valvehas been limited: this allowed a torque increase and a smoother power output.The maximum engine range is 7400-7500 rpm and it is reached faster than withthe previous Thor 200 model. It is not necessary to use a different propeller.
TECHNICAL LIST
THOR 200 EVO
Polini Engine | 2 stroke monocylinder |
Cooling | Forced air |
Bore for stroke | 64 x 60 |
Displacement | 193 cm3 |
Power | Walbro carb. 28 HP a 7400 RPM / Pwk carb.model 29 HP a 8000 RPM |
Cylinder | Aluminum with Gilnisil coating |
Compression ratio | 11,4:1 |
Piston | Two chromium plated rings mm 1 |
Intake | Reed valve in the crankcase |
Carburetor | Polini Ø28 / Walbro WB37 |
Air filter | Air box |
Ignition | Electronic and with battery charger possible |
Battery charger prearrangement | Output power 80 W at 5500 RPM |
Spark plug hood | 5k Ω resistance |
Fuel type | Lead free petrol with 2% synthetic oil |
Gear reduction unit | Helical teeth in oil bath with 2,8 reduction ratio |
Starting (Electric starter optional) | Pull start with self winding cable FLASH STARTER |
Clutch | Centrifugal in oil bath |
Muffler | Expansion with oval silencer |
Engine weight | 17,5 Kg (18,5 with electric starter) |
Propeller rotation | Clockwise |
TECHNICALFEATURES
CARBURETORS
The new THOR 200 EVO is an advanced engine that can use two different fuelsystems: d.28 PWK model carburetor or WB37 WALBRO carburetor.
CENTRIFUGAL CLUTCH
The centrifugal clutch has been studied to grant the best safety featuresduring all the stages: starting, take off, flight and landing.
BALANCING COUNTERSHAFT
It is equipped with a balancing countershaft which cancels any vibrationgranting more comfort and longer last of the engine when flying.
EASY STARTER
THOR 200 EVO engine is provided with the new Polini “Flash Starter”, reallyeasy to start. A version with electric starter is also available.
SPECIFIC POWER UNIT
The cylinder is cast in light alloy and its liner has a nickel-chromecoating for the best piston sliding. The piston is gravity die-cast in lightalloy at high silicon content with 2 special chromed and nitride steel rings.The design of the piston top optimizes the compression ratio.
CRANKSHAFT
Crankshaft with filling inserts to increase the primary compression ratio andgrant a better mixture flow.
EXHAUST SYSTEM
The exhaust system is completely hand made for a better product quality.Compact design and contained dimensions. The reduced overall dimensions improvethe aerodynamic and grant a low noise level.
FRAME CONNECTIONS
The frame-engine connecting points of the Polini Thor 200 EVO are exactly thesame as the other engines: Thor 130, Thor 190, 200 and 250.
ADVANCED SOLUTIONS
Polini THOR 200 EVO engine features many other technical solutions and safetycharacteristics. System with closed circuit for the fuel collection during itstransportation (only for models equipped with PWK model carburetor)Prearrangement for 12V exit for future electric devices. Very low propelleroverturning torque granted by the counterturning masses.
WEIGHT AND DIMENSIONS
It is important to underline that all these improvements haven’t compromisedthe weight and the overall dimensions which remain exactly the same as theprevious model.
DEVELOPMENT
It has been developed and produced following all the criteria for the handcraftproducts with the most modern and advanced production methods and under thesupervision of highly specialized technicians who have achieved greatexperience, skill and creativity during the years.