Stihl MS 170 vs Stihl MS 291 Chainsaw Comparisons
Specs that are different are highlighted in red. Specs that are better are written in bold. Notice that a chainsaw with a significantly larger number of bolded specifications is not necessarily a better chainsaw.
Chainsaw Details
Subjects of comparisons - brand and model.
| Manufacturer | Stihl | Stihl |
| Model | MS 170 | MS 291 |
| Photo |  |
 |
| Class | Homeowner | Farmowner |
| Warranty homeowner | 730 days 2 year |
730 days 2 year |
| Warranty commercial | 90 days 0.25 year |
365 days 1 year |
| Your rating |
Engine Specs Comparison
Power, displacement and type of fuel of the chainsaws.
| Fuel type | Gas | Gas |
| Fuel oil ratio | 50:1 | 50:1 |
| Weight | ~3.9 kg ~8.6 lbs |
~5.6 kg ~12.35 lbs |
| Engine | STIHL 2-MIX | Stihl 2-Mix |
| Power | 1.7 hp 1.27 kW |
3.8 hp 2.83 kW |
| Displacement | 30.1 cm³ 1.84 in³ |
55.5 cm³ 3.39 in³ |
| Torque | - Nm | Nm |
| Idle speed | 2800 RPM | 2800 RPM |
| Max speed | 8500 RPM | 13000 RPM |
| Spark plug | NGK BPMR7A | Bosch WSR6F, NGK BPMR 7A |
| Spark plug gap | 0.558 mm 0.022 in |
0.5 mm 0.02 in |
Chain and Bar Comparison
Detailed chain and bar specifications side by side.
| Bar length | 40 cm 16 in |
40 cm 16 in |
| Min bar length | 30 cm 12 in |
37 cm 15 in |
| Max bar length | 40 cm 16 in |
45 cm 18 in |
| Chain | 3/8" PMM3 | Rapid Micro 3 (RM3) |
| Pitch | 3/8 P | 3/8" |
| Gauge | 1.1 mm 0.04 in |
1.6 mm 0.06 in |
| Sprocket | Spur 6 teeth | Spur 7 Tooth |
Other specs
Fuel consumption, noise and liquid capacities.
| Fuel consumption | 0.604 l/hr 0.16 gal/hr |
1.458 l/hr 0.39 gal/hr |
| Fuel capacity | 0.25 l 8.45 fl oz |
0.5 l 16.91 fl oz |
| Oil tank capacity | 0.145 l 4.9 fl oz |
0.24 l 8.12 fl oz |
| Noise (ear level) | 100 dB(A) | 103 dB(A) |
| Vibration front | 5.2 m/s² 17.06 ft/s² |
4.5 m/s² 14.76 ft/s² |
| Vibration rear | 5.5 m/s² 18.04 ft/s² |
4.5 m/s² 14.76 ft/s² |
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