Toyota Car Parts - A Series Engines

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 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 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 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 first-generation 4A-GE which was introduced in 1983 replaced the 2T-G in most applications Only the AE86 version carried the 4A-GE engine and GT-S designations in the US In other markets, other designations were used The next major modification was the high-performance 4A-G, with the fuel injected version, the 4A-GE, being the most powerful Toyota joint venture partner Tianjin FAW Xiali still produces 1·3 L 8A and recently restarted production of the 5A. During rising engine speed, a slight lurch can occur at the crossover point and an experienced driver will be able to detect the shift in performance 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 The series began in the late 1970s with the 1A, an SOHC engine with a displacement of 1. The first obvious difference are the valves, the engine's intake and exhaust valves were placed 22 The 1987–1998 4A-FE is the descendant of the carbureted 4A-F Also of note the pistons were changed to accept a 20mm fully floating gudgen pin unlike the 18mm pressed in pins of the earlier versions 3° apart (compared to 50° in the G-Engines) The second generation had a higher profile cams design in the head, the cam cover having ribs throughout its length and the injectors in the intake manifold runners To correct the air-speed problems of the earlier genrations of engine the heads inlet ports were redesigned to have smaller cross section inlet ports, and hence has been nickanmed as the 'smallport head' This enabled the the torque curve to still be intact at lower engine speeds, allowing for better performance across the entire speed band and a broad, flat torque curve around the crossover point 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 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 It was a 2-valve SOHC design like its predecessor. 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 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 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 The first- and second-generation engines are very popular with racers and tuners because of the ease of modification, simple design, and lightness All 4A engines have a displacement of 1·6 L (1587 cc). 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 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. Toyota models that had this engine:
Corolla AE85 (JDM)
Carina AA60The 4A was produced from 1980 through 1998. 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 The second generation engine was produced from 1992 until 1998. The 4A-F used a carburetor, while the 4A-FE used electronic fuel injection system (notice the 'E'). The 1·3 L (1295 cc) 2A was produced from 1979 through 1986. 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) New performance parts are still available for sale even today because of its strong fan base. Also, the 4A-FE had extra power. This engine has the silver cam covers with the words only written in red, hence the nickname 'red top' 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 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 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 TVIS equipped model is an ideal candidate for a turbocharging overhaul because it contains the so-called 'big-port head', meaning the head had the large cross sectional area intlet ports It was a 2-valve SOHC engine. The plus side of this design is that it improved fuel efficiency and torque, the down side is that it compromises power. 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. Production of the first-generation engine model lasted through 1987. 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. 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. 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 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 The TVIS feature is maintained. 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. Additional engine modifications to extend life and the reliability included under piston cooling oil squirters, thicker connecting rods and other components. 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.

Visit Toyrolla's Toyota Car Parts