Here’s a direct comparison of the Rotax 912ULS, 912iS, and 914 engines, focusing on weight and horsepower:
| Engine Model | Rotax 912 ULS | Rotax 912 iS | Rotax 914 |
|---|---|---|---|
| Horsepower | 100 hp | 100 hp | 115 hp |
| Max RPM | 5,800 rpm | 5,800 rpm | 5,800 rpm |
| Engine Weight | 63.6 kg (140 lbs) | 66.6 kg (147 lbs) | 64.7 kg (143 lbs) |
| Fuel System | Dual Carburetor | Fuel Injected | Dual Carburetor |
| Turbocharger | No | No | Yes |
Key Differences:
- The 912ULS and 912iS both deliver 100 hp, but the 912iS has a more efficient fuel injection system.
- The 914 provides a higher power output of 115 hp due to its turbocharger, which also allows better performance at higher altitudes.
- There is a slight weight difference, with the 912 iS being heavier due to the fuel injection system, while the 914 is marginally heavier than the 912ULS due to the turbocharger.