2.0L FA20 motor is a common venture of Subaru and Toyota (4U-GSE). FA20 was employed for Subaru BRZ coupe car, while Toyota utilized 4U-GSE for Toyota 86 and Scion FR-S.
This motor is built on a framework of FB20. It features an absolutely restyled bottom. Fresh crankshaft, rods, and pistons were employed. The motor has a square shape with identical bore and stroke sizes and reaches 1:1 bore/stroke proportions. In comparison with FB20, the compression index is bigger and equals 12.5:1. Intake and exhaust camshafts feature the AVCS system.
Toyota contributed its direct fuel injection system D4S. A steel 4-2-1 exhaust manifold was utilized for the exhaust system. Besides, it is available in the FA20D version, a 2.0L naturally aspirated non-turbo motor with an output of 200 hp at 7,000 rpm and a torque of 151 lb-ft.
FA20 Engine Specs
| Manufacturer | Gunma Oizumi Plant |
| Also called | Subaru FA20 |
| Production | 2012-present |
| Cylinder block alloy | Aluminum |
| Configuration | Flat-4 |
| Valvetrain | DOHC 4 valves per cylinder |
| Piston stroke, mm (inch) | 86 (3.39) |
| Cylinder bore, mm (inch) | 86 (3.39) |
| Compression ratio | 10.6 12.5 |
| Displacement | 1998 cc (121.9 cu in) |
| Power output (horsepower) | 147 kW (200 HP) at 7,000 rpm 186 kW (253 HP) at 5,600 rpm 200 kW (272 HP) at 5,600 rpm 221 kW (300 HP) at 5,600 rpm |
| Torque output | 205 Nm (151 lb·ft) at 6,400-6,600 rpm 350 Nm (258 lb·ft) at 2,000-4,800 rpm 350 Nm (258 lb·ft) at 2,000-5,200 rpm 400 Nm (295 lb·ft) at 2,000-4,800 rpm |
| Redline | 7,400 (N/A) 6,700 (Turbo) |
| HP per liter | 100.1 126.6 136.1 150.1 |
| Fuel type | Gasoline |
| Weight, kg (lbs) | – |
| Fuel consumption, L/100 km (mpg) -City -Highway -Combined | Subaru BRZ 10.4 (22) 6.4 (37) 7.8 (30) |
| Turbocharger | Naturally aspirated Garrett MGT2259S (FA20DIT) |
| Oil consumption, L/1000 km (qt. per miles) | up to 1.0 (1 qt. per 600 miles) |
| Recommended engine oil | 0W-20 5W-20 5W-30 (FA20DIT) 5W-40 (FA20DIT) |
| Engine Oil Capacity, L (qt.) | 6.3 (6.7) 5.1 (5.4)- FA20DIT |
| Oil change interval, km (miles) | 5,000-10,000 (3,000-6,000) |
| Normal engine operating temperature, °C (F) | – |
| Engine lifespan, km (miles) -Official information -Real | – 200,000+ (120,000) |
| Tuning, HP -Max HP -No life span loss | 500+ – |
Subaru FA20 Engine Oil Capacity
The Subaru FA20 engine takes 5.4 quarts of 5W-30 oil with a filter replacement.
Subaru FA20 Engine Modifications
FA20DIT, FA20F, and FA20E are turbo versions of FA20 used as alternatives to EJ205 and EJ207. These models have aluminum pistons with a lower compression index of 10.6:1, restyled heads, contributing to better airflow, and advanced combustion chambers.
Camshafts of these turbocharged motors have additional functions and contain a plastic intake manifold with tumbler generator valves. Twin Scroll turbocharger Garrett MGT2259S generates 1.1 bar pressure (1.5 bar in over-boost mode). Output is 272 hp at 5,600 rpm and a torque of 258 ft-lb.
What Cars Have A Subaru FA20?
- 2017+ Subaru BRZ/Toyota GT86 (manual transmission)
- 2012+ JDM Subaru Legacy 2.0GT DIT and 2014+ Subaru Levorg
- 2014+ USDM Subaru Forester XT
- 2014+ JDM Subaru Forester XT
- 2015+ USDM Subaru WRX
FA20 Engine Problems And Reliability
- Rough idling. The most possible reason is a malfunction of engine control unit software, and it’s advised to get fresh software for the control unit.
- Motor stops functioning. You need to examine cam gear; its improper functioning decreases engine oil pressure.
To increase the durability and efficiency of the FA20 motor, it’s necessary to use only high-quality fuel as it influences the engine’s lifespan. Besides, it’s advisable to buy only good quality engine oil and change it more often than Subaru recommends.
