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 |