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POLINI THOR

POLINI THOR 250 SS

THOR 250 engines have new BLACK crank-cases and the well-known features of reduced and compact dimensions match perfectly with the unique weigh/power ration with improved performance.

The main novelties are about reduced consumption, improved maximum power and torque out-put. Thanks to the new cylinder optimized admission transfers, the head has been modified with the optimization of the combustion chamber and squish, while the fuel system has been redesigned with new carburetor setting and new air-intake that improve the gas-petrol flows, making them more stable.

Polini THOR 250 engine feature a liquid cooled system, that grants an extraordinary steady power output and better performance at every rpm.

The advanced technology and the great performance of the new THOR 250 give a better feeling when driving making the flight even more performing, dynamic, reactive, beside granting more stability.

Polini Engine 2 stroke monocylinder
Cooling Liquid cooled
Bore for stroke 72 x 60
Displacement 244 cm3
Power 36 HP
*Max trust 105 Kg with Ø 150 cm propeller
R.P.M. max 8.000
Cylinder Aluminum with Gilnisil coating
Compression ratio 11,5:1
Piston Two chromium plated rings mm 1
Intake Reed valve in the crankcase
Carburetor Polini Ø28 float
Air filter Air box
Ignition Electronic with battery charger possible
Battery charger prearrangement Output power 80 W at 5500 RPM
Spark plug hood 5k Ω resistance
**Fuel type E5 petrol or LL AV GAS-al with 2,5% synthetic oil 100%
*Consumption 2,9 Lh 30 Kg of static trust
Gear reduction unit Helical teeth in oil bath with 2,8 reduction ratio
Starter Flash Starter – (Electric starter -optional)
Clutch Centrifugal in oil bath
Muffler Expansion with oval silencer
Engine weight From 18 Kg (without radiator)
Propeller rotation Clockwise

POLINI THOR 250 DS

THOR 250 DS engines have new BLACK crank-cases and the well-known features of reduced and compact dimensions match perfectly with the unique weigh/power ration with improved performance.

The main novelties are about reduced consumption, improved maximum power and torque out-put. Thanks to the new cylinder optimized admission transfers, the head has been modified with the optimization of the combustion chamber and squish, while the fuel system has been redesigned with new carburetor setting and new air-intake that improve the gas-petrol flows, making them more stable.

Polini THOR 250 DS engine feature a liquid cooled system, that grants an extraordinary steady power output and better performance at every rpm.

The advanced technology and the great performance of the new THOR 250 DS give a better feeling when driving making the flight even more performing, dynamic, reactive, beside granting more stability.

Polini Engine 2 stroke monocylinder
Cooling Liquid cooled
Bore for stroke 72 x 60
Displacement 244 cm3
Power 36,5 HP
*Max trust 105 Kg with Ø 150 cm propeller
R.P.M. max 8.000
Cylinder Aluminum with Gilnisil coating
Compression ratio 11,5:1
Piston Two chromium plated rings mm 1
Intake Reed valve in the crankcase
Carburetor Polini Ø28 float
Air filter Air box
Ignition 1 Electronic
Ignition 2 Electronic battery powered
Battery charger Output power 80 W at 5500 RPM
Spark plug hood 5k Ω resistance
**Fuel type E5 petrol or LL AV GAS-al with 2,5% synthetic oil 100%
*Consumption 2,9 Lh 30 Kg of static trust
Gear reduction unit Helical teeth in oil bath with 2,8 reduction ratio
Starting Electric starter + Flash Starter
Clutch Centrifugal in oil bath
Muffler Expansion with oval silencer
Engine weight From 18 Kg (without radiator)
Propeller rotation Clockwise

POLINI THOR 200 HF

The new Polini Thor 200 HF has been developed by the Polini R&D team using the new 3D modeling software systems and flow dynamic simulation. The result of this research and the introduction of the innovative HF System grant better cooling improving the performance of the Thor 200 HF. It has been used during the last 2018 French Championship and it has already won its first title with the pluri-world champion Alex Mateos, confirming the reliability of the new THOR 200 HF.

Technical features:
COOLING SHROUD

The new design of the “HIGH FLOW” cooling shrouds combines the now existing air forced system with fan, the extraction generated through the propeller and the specific design of the cooling shroud. This system, together with the SPARK COOLER lets the lowering of the engine working temperatures.

SPARK COOLING SYSTEM

SCS is the innovative cooling system of the spark plug that lows the working temperatures in the point of highest warm and in the burning chamber, eliminating the events of over-heating. Polini SCS system reduces the EGT temperatures till 100 C° and till 60 C° the ones under the spark plug.

HEAD

The new profile of the burning chamber improves the propagation of the flame optimizing the fuel combustion phase. This peculiarity, together with the increasing of the compression ratio, improves the engine performance reducing the fuel consumption.

CARBURETOR AND AIR BOX

The new carburetor set up has been improved thanks to a series of workings inside the carburetor finalized to increase the power output and the vaporization of the petrol/air mixture. Two fuel systems are available: bowl Ø28 carburetor or Walbro WB37 carburetor.

Polini Engine 2 stroke monocylinder
Cooling Forced air
Bore for stroke 64 x 60
Displacement 193 cm3
Power 30 HP
R.P.M. max 8.100
Cylinder Aluminum with Gilnisil coating
Compression ratio 12:1
Piston Two chromium plated rings mm 1
Intake Reed vale in the crankcase
Carburetor Walbro / Polini Float Ø28
Air filter Air box
Ignition Electronic 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 Pull start with self winding cable Flash Starter – Electric starter (optional)
Clutch Centrifugal in oil bath
Muffler Expansion with oval silencer
Engine weight 17,5 Kg (18,5 with electric starter)
Propeller rotation Clockwise

POLINI THOR 190 HF

As its Thor 200 HF older brother, the Polini Thor 190HF has been developed by the R&D team using the new 3D modeling software systems and flow dynamic simulation. The result of this research and the introduction of the innovative HF System grant better cooling improving the performance of the Thor 190HF. Polini THOR 190 HF engines feature: 193cc displacement, reduced weight till 12,3 kg if equipped with Titanium exhaust system (available as an optional).

Technical features:
COOLING SHROUD

The new design of the “HIGH FLOW” cooling shrouds combines the now existing air forced system with fan, the extraction generated through the propeller and the specific design of the cooling shroud. This system, together with the SPARK COOLER lets the lowering of the engine working temperatures.

SPARK COOLING SYSTEM

SCS is the innovative cooling system of the spark plug that lows the working temperatures in the point of highest warm and in the burning chamber, eliminating the events of over-heating. Polini SCS system reduces the EGT temperatures till 100 C° and till 60 C° the ones under the spark plug.

HEAD

The new profile of the burning chamber improves the propagation of the flame optimizing the fuel combustion phase. This peculiarity, together with the increasing of the compression ratio, improves the engine performance reducing the fuel consumption.

Polini Engine 2 stroke monocylinder
Cooling Forced air
Bore for stroke 64 x 60
Displacement 193 cm3
Power 28 HP
R.P.M. max 8.000
Cylinder Aluminum with Gilnisil coating
Compression ratio 12:1
Piston Two chromium plated rings mm 1
Intake Reed valve in the crankcase
Carburetor Walbro WB37
Air filter Air box
Ignition Electronic with inductive discharge
Battery charger prearrangement Output power 80 W at 5500 RPM (with electric starter only)
Spark plug hood 5k Ω resistance
Fuel type Lead free petrol with 2% synthetic oil
Gear reduction unit Belt transmission with 2,83 reduction ratio
Starter (Option electric starter) Pull starter with self-winding rope.
Clutch Dry centrifugal (for model with clucth only)
Muffler Expansion with aluminum silencer
Engine weight 13,6 Kg – 14,4 Kg clutch – 14,9 Kg elect. starter – 17 Kg clutch+elect. Starter
Propeller rotation Counterclockwise

POLINI THOR 80

An even more improved, modern, innovative engine, with an original and advanced air filter, especially planned to exploit the power at best and fully optimize the performance of the smallest paramotor produced by the factory in Bergamo.

The project of the updated Polini Thor 80 was born by the precise will to match its unbelievable power and compactness features to its extraordinary weight/power ratio, as well as its thrust and upward potential.

The original air filter stands out for its modern, carbon look design, with very compact dimensions. If compared to the previous air filter, the new one reduces the noise. The filtering element has an advanced technology, to ensure maximum air cleaning features during the aspiration.

The main feature of the Thor 80 engine is the new carburetion setting, which ensures a more homogeneous and linear power output at every rpm.

Polini engine 2-stroke monocylinder
Cooling Liquid cooled
Bore for stroke 50×44
Displacement 86 cm3
Power 18 HP
Max trust* 62 Kg with Ø 130 cm propeller
R.P.M max 10.450
Cylinder aluminum with Gilnisil coating
Compression ratio 14:01
Piston Two chromium plated rings (mm 1)
Intake Reed valve in the crankcase
Carburetor CP Polini Ø21 – Walbro WG8
Air filter Air box
Ignition Electronic
Spark plug hood 5k Ω resistance
Fuel type** E5 petrol or LL AV GAS-al with 2,5% synthetic oil 100%
Consumption* 2,7 Lh 30 Kg of static trust
Gear reduction unit Helical teeth in oil bath with3,58 reduction ratio
Starter Flash starter
Clutch Centrifugal (wet)
Muffler Expansion with aluminum silencer
Engine weight 11,4 Kg (with radiator)
Propeller rotation Clockwise