## Overview
The Nissan RB engine series is a family of inline-six automobile engines manufactured by Nissan. It was introduced in 1985 as the successor to the Nissan L engine series. The RB engine was used in a variety of Nissan vehicles, including the Skyline, Laurel, Cedric, and Gloria. It is known for its high performance and durability, and has been used in a number of motorsports applications.
### History
The RB engine was developed in the early 1980s as a replacement for the Nissan L engine series. The L series was a reliable and durable engine, but it was not particularly powerful or efficient. Nissan engineers set out to design an engine that would be more powerful and efficient than the L series, but that would also be reliable and durable.
The first RB engine was the RB20E, which was introduced in 1985. The RB20E was a 2.0-liter engine with a single overhead camshaft and two valves per cylinder. It produced 135 horsepower and 132 lb-ft of torque.
In 1987, Nissan introduced the RB20DET, which was a turbocharged version of the RB20E. The RB20DET produced 205 horsepower and 210 lb-ft of torque.
In 1989, Nissan introduced the RB25DE, which was a 2.5-liter engine with a dual overhead camshaft and four valves per cylinder. The RB25DE produced 180 horsepower and 184 lb-ft of torque.
In 1991, Nissan introduced the RB25DET, which was a turbocharged version of the RB25DE. The RB25DET produced 230 horsepower and 240 lb-ft of torque.
The RB engine series was produced until 1998, when it was replaced by the Nissan VQ engine series.
### Specifications
The RB engine series is a family of inline-six engines with a displacement of 2.0 liters to 3.0 liters. The engines have a cast iron block and aluminum cylinder heads. The缸径和行程因发动机版本而异。
The RB engine series is known for its high performance and durability. The engines are capable of producing a lot of power and torque, and they are very reliable. The RB engine series has been used in a number of motorsports applications, including Formula One, the World Rally Championship, and the 24 Hours of Le Mans.
### Variants
The RB engine series has a number of different variants, including:
* **RB20E:** 2.0-liter, single overhead camshaft, two valves per cylinder
* **RB20DET:** 2.0-liter, turbocharged, single overhead camshaft, two valves per cylinder
* **RB25DE:** 2.5-liter, dual overhead camshaft, four valves per cylinder
* **RB25DET:** 2.5-liter, turbocharged, dual overhead camshaft, four valves per cylinder
* **RB26DETT:** 2.6-liter, twin-turbocharged, dual overhead camshaft, four valves per cylinder
The RB26DETT is the most powerful variant of the RB engine series. It produces 280 horsepower and 266 lb-ft of torque. The RB26DETT is used in the Nissan Skyline GT-R.
### Applications
The RB engine series has been used in a variety of Nissan vehicles, including:
* **Nissan Skyline**
* **Nissan Laurel**
* **Nissan Cedric**
* **Nissan Gloria**
* **Nissan Cefiro**
* **Nissan Avenir**
* **Nissan Stagea**
* **Nissan President**
* **Infiniti M30**
* **Infiniti Q45**
The RB engine series is a popular choice for tuners and racers. The engines are capable of producing a lot of power and torque, and they are very reliable. The RB engine series has been used in a number of motorsports applications, including Formula One, the World Rally Championship, and the 24 Hours of Le Mans.
### Conclusion
The Nissan RB engine series is a family of high-performance, durable inline-six engines. The engines have been used in a variety of Nissan vehicles, including the Skyline, Laurel, Cedric, and Gloria. The RB engine series is known for its high performance and durability, and has been used in a number of motorsports applications.
