Toyota A type engine

The A Series engines are a family of straight-4 internal combustion engines with displacement from 1.3 L to 1.8 L produced by Toyota Motor Corporation. The series has cast iron engine blocks and aluminum cylinder heads. The series began in the late 1970s with the 1A, an SOHC engine with a displacement of 1.5 L. Toyota joint venture partner Tianjin FAW Xiali still produces 1.3 L 8A and recently restarted production of the 5A. In between, many interesting variations were produced, including one of the first 5-valve engines (the 4A) and the 170 hp (127 kW) supercharged 4A-GZE:-

1. 1A:-The 1.5 L (1452 cc) 1A was produced in 1978 and 1979. It was a 2-valve SOHC engine.



2. 2A:-The 1.3 L (1295 cc) 2A was produced from 1979 through 1986. Cylinder bore was 76 mm (2.99 in) and stroke was 71.4 mm (2.81 in). It was a 2-valve SOHC design like its predecessor.
   Output ranged from 65-75 hp (48-56 kW) at 5400-6000 rpm and 72-79 ft·lbf (97-107 N·m) at 3600 rpm.



3. 3A:-The 1.5 L (1452 cc) 3A was produced from 1979 through 1988. Cylinder bore was 77.5 mm (3.05 in) and stroke was 77 mm (3.03 in). It was a 2-valve SOHC like the 1A and 2A. There were California-spec (3A-C), Japan-spec (3A-U), transverse (3A-L), and swirl-intake (3A-S) versions of the same basic design.
   Power output ranged from just 62 hp (46 kW) at 4800 rpm all the way to 90 hp (67 kW) at 6000 rpm. Torque was less spread from 75 ft·lbf (101 N·m) at 2800 rpm to 89 ft·lbf (120 N·m) at 4000 rpm.



4. 4A:-The 4A was produced from 1980 through 1998. All 4A engines have a displacement of 1.6 L (1587 cc). Cylinder bore was enlarged from the previous 3A engines at 81 mm (3.19 in), but stroke remained the same as the 3A at 77 mm (3.03 in).
   Numerous variations of the basic 4A design were produced, from SOHC 2-valve all the way to DOHC 5-valve versions. Power was also extremely varied, from 70 hp (52 kW) at 4800 rpm in the basic California-spec 4A-C to 170 hp (127 kW) at 6400 rpm in the supercharged 4A-GZE.



5. 5A:-A smaller 1.5 L (1498 cc) 5A-F was produced in 1987 and the fuel injected 5A-FE was produced that year and again from 1995 through 1998. Both used a cylinder bore of 78.7 mm (3.1 in) and a stroke of 77 mm (3.0 in).Both had 4 valves per cylinder with DOHC heads and used the narrow 22.3° valve angle.
   Toyota joint venture partner Tianjin FAW Xiali now produces the 5A-FE (dubbed 5A+) for its Vela and Weizhi (C1) subcompact sedans.
   Output for the carb version was 85 hp (63 kW) at 6000 rpm and 90 ft·lbf (122 N·m) at 3600 rpm. Output for the 1987 FI version was 104 hp (78 kW) at 6000 rpm and 97 ft·lbf (131 N·m) at 4800 rpm. The later one produced 100 hp (75 kW) at 5600 rpm and 102 ft·lbf (138 N·m) @ 4400 rpm. The version now produced by Xiali produces 100 hp (75 kW) at 6000 rpm and 96 ft·lbf (130 N·m) @ 4400 rpm.



6. 6A:-The 1.4 L (1397 cc) 6A-FC was the only 1.4 variant, produced from 1989 through 1992. Output was 82 hp (61 kW) at rpm and 87 ft·lbf (117 N·m) at rpm. Cylinder bore was 76 mm (3 in) and stroke was 77 mm (3.03 in) for this 4-valve DOHC engine.



7. 7A:-The largest A-series engine was the 1.8 L (1762 cc) 7A-FE. Produced from 1993 to 1998, it was a 4-valve DOHC narrow-valve-angle economy engine. Cylinder bore was 81 mm (3.19 in) and stroke was 85.5 mm (3.37 in).
   An early Canadian version produced 115 hp (86 kW) at 5600 rpm and 110 ft·lbf (149 N·m) at 2800 rpm. The most common version is rated at 115 hp (86 kW) at 5600 rpm and 115 ft·lbf (155 N·m) at 2800 rpm engine.
   In the United States, the 7A-FE's most common application was in the 1993–1997 Toyota Corolla (7th generation). The engine was also used in some 1994–1999 Toyota Celicas (6th generation) at the base ST trim level, as well as the Toyota Corolla's clone, the Geo Prizm.
   Since the 7A shares the same layout as the 4A it is possible to create a 7A-G(Z)E out of a 7A-FE bottom and a 4A-G(Z)E head. Since the 7A is a very common engine the upgrade from 4A-G(Z)E to 7A-G(Z)E should be relatively cheap. This is a popular upgrade amongst drifters (mostly AE86 drivers) who are always in need of more torque.
   The Indonesian and Russian version of 7A-FE has strongest output, 120 hp (89 kW) at 6000 rpm and 16 kgf·m (157 N·m) at 4400 rpm, with 9.5 compression ratio. It appears in the 8th generation Corolla (AE112).
   It is a noninterference type engine.



8. 8A:-A 1.3 L (1342 cc) 8A is now produced by Tianjin FAW Xiali for its Daihatsu and Toyota-based subcompacts. It uses the same cylinder bore of 78.7 mm (3.1 in) as the 5A with a reduced stroke of 69 mm (2.7 in) and a 4 valves per cylinder DOHC head.
   Output is 86 hp (64 kW) at 6000 rpm and 81 ft·lbf (110 N·m) @ 5200 rpm.