The BMW N43B20 engine has varying horsepower outputs depending on its specific tune and application. It can produce up to 168 horsepower (bhp), though it was also available in a 121 horsepower (bhp) configuration.
Understanding N43B20 Power Output
The N43B20 is a 1,995 cc (121.7 cu in) engine that replaced the 1,599 cc N43B16 in certain BMW models. While its maximum potential output reaches 168 bhp, BMW utilized different power tunes for various vehicle applications.
For instance, when the N43B20 was introduced in the BMW 116i in 2009, replacing the smaller N43B16, its power output was set at 121 bhp (90 kW). This specific tune maintained the power level of the engine it replaced, but benefited from increased torque.
N43B20 Specifications Overview
To provide a clear understanding of the N43B20's capabilities, here's a summary of its key power specifications:
| Characteristic | Metric Value | Imperial Value |
|---|---|---|
| Displacement | 1,995 cc | 121.7 cu in |
| Maximum Power | 125 kW | 168 bhp |
| Max Torque | 210 N⋅m | 155 lb⋅ft |
| 116i Tune Power | 90 kW | 121 bhp |
Key Aspects of the N43B20 Engine
- Versatile Power Delivery: The N43B20 demonstrates how a single engine block can be configured to produce different power outputs to suit various vehicle models and market segments.
- Emissions Compliance: As part of the N43 series, this engine was designed to meet stricter European emissions regulations, featuring direct injection technology.
- Replacement Engine: Its introduction often marked an upgrade in engine technology and efficiency for the models it was integrated into, typically offering improved torque even in lower power tunes.
