Nissan SR20 Engine

Specifications

The SR20 engine is a 2.0-liter inline-4 engine featuring a DOHC (Dual Overhead Camshaft) configuration with 16 valves, designed for high-revving performance and efficient airflow. It has an aluminum alloy cylinder head and cast-iron block for durability. Depending on the variant, it produces between 140–205 hp and 132–203 Nm of torque, with turbocharged versions delivering higher power. This engine uses multi-point fuel injection for precise fuel delivery, and many versions feature intercoolers on turbo models to improve efficiency. It has an aluminum alloy cylinder head and cast-iron block for durability. Depending on the variant, it produces between 140-205 hp and 132–203 Nm of torque, with turbocharged versions delivering higher power.    

The engine uses multi-point fuel injection for precise fuel delivery, and many versions feature intercoolers on turbo models to improve efficiency. Its compression ratio varies between 8.5:1 to 10.0:1, and it can rev safely up to 7,500–8,000 rpm. The SR20 is renowned for its balance of reliability and tuning potential, making it a favorite among enthusiasts.  

Engine Variants

SR20DE

The SR20DE is a naturally aspirated 2.0L inline-4 engine featuring DOHC and 16 valves. It produces around 140–165 hp and 132–140 lb-ft of torque, depending on the market and year. Known for its reliability and smooth power delivery, it is widely used in models like the Nissan Sentra, Silvia, and Bluebird, offering a balance of efficiency and performance for daily drive.

SR20DET

The SR20DET is the turbocharged 2.0L inline-4 version of the SR20, equipped with DOHC, 16 valves, and variable turbos like the T25 or T28. Later models include VTC (Variable Timing Control) for optimized valve timing. It produces approximately 205–250 hp and 203–210 lb-ft of torque, depending on the variant, making it a popular choice for tuners and performance enthusiasts in cars like the Nissan Silvia and Pulsar GTI-R.

SR20VE

The SR20VE is a naturally aspirated 2.0L inline-4 engine featuring DOHC, 16 valves, and VVL (Variable Valve Lift) technology for high-revving performance. It produces around 187-190 hp and 145 lb-ft of torque, delivering strong top-end power while maintaining smooth drivability at lower RPMs.

SR20VET

The SR20VET combines the 2.0L SR20VE architecture with turbocharging, DOHC, 16 valves and VVL for a high-performance package. Output ranges around 280-300hp and 230 lb-ft of torque, making it a rare but a durable engine for performance applications. 

Frequently Asked Questions