Toyota Car Parts - A Series Engines

It was extremely light and strong for a production engine using an all-iron block, and produced 112 hp (84 kW) at 6600 rpm and 97 ft·lbf (131N·m) of torque at 4800 rpm in the American market Toyota designed the engine for performance; the valve angle was a relatively wide 50 degrees, which at the time was believed to be ideal for high power production It was a 2-valve SOHC design like its predecessor The only exception was the US-market 1990-91 Geo Prizm GSi, which was equipped with the MAP The 1·5 L (1452 cc) 1A was produced in 1978 and 1979 The AE86 marked the end of the 4A-GE as a rear wheel drive (RWD or FR) mounted engine, alongside the RWD AE86/AE85 coupes a front wheel drive (FWD or FF) corolla (the AE82) was produced and future Corollas/Sprinters were all based around the FF layout An AE85 chassis code may be a base model Corolla, or an SR-5, with a 4A-C engine Although it is to be noted that more modern high reving engines have since closed up the valve angle to 20 to 25 degrees which is now believed to be ideal for high reving engines with high power per litre Cylinder bore was 76 mm (2·99 in) and stroke was 71·4 mm (2·81 in). The reliability and performance of these engines has earned them a fair number of enthusiasts and a fan base as they are a popular choice for an engine swap in to other Toyota cars such as the KE70 and KP61 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) The 4A-FE is basically the same as the 4A-F (introduced in the previous generation of Corollas), the most apparent difference being the fuel delivery system The 1987–1998 4A-FE is the descendant of the carbureted 4A-F The 4A-GE was first introduced in the 1983 Sprinter Trueno AE86 and the Corolla Levin AE86 sports version It is speculated that the 4A-GE is actually a road-going version of the Ford Cosworth BDA racing engine, reverse engineered by Toyota as the bore and stroke dimensions are similar and there are many similarities in the engine design, making it a reliable engine for motorsports applications This engine revision upped the power to 138 hp (103 kW) at 7200 rpm with a torque of 110 ft·lbf (149 N·m) at 4800 RPM The effect was that at lower revs where the airspeed would normally be slow, four of the eight runners were closed, this forced all the engine to draw in all its air through half the runners in the manifold The 4A-GE was one of the earliest inline-4 engines to have both a DOHC 16 valve configuration (four valves per cylinder, two inlet, two exhaust) and electronic fuel injection (EFI) 3° apart (compared to 50° in the G-Engines) The 1·3 L (1295 cc) 2A was produced from 1979 through 1986. Even though the valve angle is closer to what is considered in some racing circles to be ideal for power (approximately 25 degrees), its other design differences and the intake which is tuned for a primary harmonic resonance at low revs means that it has about 20% less power compared to the 4A-GE It is visually similar to the first-generation engine and the power output is unchanged, but the upper cam cover now featured red and black lettering All non-US market 4A-GEs continued to use a MAP sensor, while all of the US-market Toyota 4A-GE came with a MAF sensor This engine was identifiable via silver cam covers with the lettering on the upper cover painted black and blue, as well as the presence of three reinforcement ribs on the back side of the block This raised the airspeed which caused better cylender filling and also better fuel atomisation The difference between the two generations of this engine can be identified by the external shape of the engine, the first generation (1987–1993) have a more rugged look, a plate on the head which read '16valve EFI', and the fuel injectors in the head The engine was used in the Toyota Corolla Sedan from 1988 to 1998 and in the 5th Generation Celica ST models from 1989 to 1993 both in North America and Europe, as well as the Camry from '87 to '91 It was a 2-valve SOHC like the 1A and 2A. A kit version of the 4A-GE from Toyota Racing Development was used to power Formula Atlantic cars during this period Toyota joint venture partner Tianjin FAW Xiali still produces 1·3 L 8A and recently restarted production of the 5A. 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. Clarification: In the US market, the 4A-GE engine was first used in the 1985 model year Corolla GT-S only, which is identified as an 'AE88' in the VIN but uses the AE86 chassis code on the firewall as the AE88 is a 'sub' version of the AE86 The first obvious difference are the valves, the engine's intake and exhaust valves were placed 22. New performance parts are still available for sale even today because of its strong fan base This engine has the silver cam covers with the words only written in red, hence the nickname 'red top' 5 L. The third-generation appeared in 1989 and was in production until 1991 Although not as powerful as the 4A-GE, both engines are renowned for the power they produce from such a low displacement (relative to other engines). Power output ranged from just 62 hp (46 kW) at 4800 rpm all the way to 90 hp (67 kW) at 6000 rpm. To compansate for the reduced air speed the first-generation engines included the TVIS feature, in which dual intake runners are fitted with butterfly valves that opened at approximetly 4200 RPM Toyota engineers had skillfully optimized the power and torque from the company's relatively low-displacement engines. Production of the various models of this version lasted for five generations, from 1983 through 1991 for 16-valve versions and the 5-valve 4A-GE lasted through 1998. The engine was retired from North American Corollas in 1991, although it continued to be available in the Geo Prizm GSi (sold through Chevrolet dealerships) from 1990 to 1992 The series has cast iron engine blocks and aluminum cylinder heads. Numerous variations of the basic 4A design were produced, from SOHC 2-valve all the way to DOHC 5-valve versions. The plus side of this design is that it improved fuel efficiency and torque, the down side is that it compromises power. Although both have the same displacement and are DOHC, they were optimized for different uses. This version, although from the same series and the same generation as the 4A-GE, is different from its 'brother' in terms of performance and power. The TVIS feature is maintained. All 4A engines have a displacement of 1·6 L (1587 cc). 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. Applications:
1992 Toyota Corolla Levin, Sprinter Trueno AE101 (silver top): All GT models (GT Apex, GT-V etc)
1995 Toyota Corolla Levin, Sprinter Trueno AE111 (black top): All BZ models (BZG, BZR, BZV etc) Toyota sponsored the Champ Car Atlantic Championship from 1990 to 2005 The second is that it employed a 'slave cam system', the camshafts being geared together and driven off one camshaft's sprocket (both camshafts' sprockets on the G-Engine are rotated by the timing belt). The second-generation 4A-GE produced from 1987 to 1989 featured larger diameter bearings for the con-rod big ends (42mm) and added four additional reinforcement ribs on the back of the engine block, for a total of seven. This change in the intlet ports negated the need to have the need for the earlier twin runner manifold and was replaced with a single runner manifold. The 4A-GE engines for the 1985 model year are referred to as 'blue top' as opposed to the later 'red top' engines, because the paint color on the valve covers is different, to show the different engine revision, using different port sizes, different airflow metering, and other minor differences on the engine Toyota models that have had this engine:
Toyota MR2 AW11: Mid-engine RWD
Corolla AE85/AE86 GT-S: RWD (often referred to as generic AE86 chassis group)
Corolla AE82 FX-16: FWD
Corolla AE92 GT-S: FWD
SE Sedan (North America): (RWD from 1983-87 and FWD from 1988-91)
Some Celicas Additional engine modifications to extend life and the reliability included under piston cooling oil squirters, thicker connecting rods and other components. This engine used a modified 16-valve head and produced approximately 240 horsepower at 8400 rpm.

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