Toyota Car Parts - A Series Engines

While the port cross section was suitable for a very highly modified engine at very high revs it caused a considerable drop in low down torque due to the decreased air speeds at those revs 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 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 1·3 L (1295 cc) 2A was produced from 1979 through 1986 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 Although both have the same displacement and are DOHC, they were optimized for different uses 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 Cylinder bore was 76 mm (2·99 in) and stroke was 71·4 mm (2·81 in) 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 There were California-spec (3A-C), Japan-spec (3A-U), transverse (3A-L), and swirl-intake (3A-S) versions of the same basic design 3° apart (compared to 50° in the G-Engines) 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 Torque was less spread from 75 ft·lbf (101 N·m) at 2800 rpm to 89 ft·lbf (120 N·m) at 4000 rpm The TVIS feature is maintained 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 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 The 4A-GE was first introduced in the 1983 Sprinter Trueno AE86 and the Corolla Levin AE86 sports version 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 1·5 L (1452 cc) 1A was produced in 1978 and 1979. New performance parts are still available for sale even today because of its strong fan base 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 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 use of an air flow meter (MAF) sensor, which restricted air flow slightly but produced cleaner emissions that conformed to the US regulations, limited the power to 112 hp whereas the Japanese model — which used a manifold absolute pressure (MAP) sensor — produced 130 PS (96 kW) This engine has the silver cam covers with the words only written in red, hence the nickname 'red top' 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 5 L. It was a 2-valve SOHC engine. 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 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. It was a 2-valve SOHC like the 1A and 2A. Additional engine modifications to extend life and the reliability included under piston cooling oil squirters, thicker connecting rods and other components Power output ranged from just 62 hp (46 kW) at 4800 rpm all the way to 90 hp (67 kW) at 6000 rpm. The engine was succeeded by the 3ZZ-FE, a 1·6-liter engine with VVT-i technology. 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
Other models equipped with the 4A-GE:
Chevrolet Nova (based on Toyota AE82 chassis; 1984–1988—these 4A-GE cars were exceptionally rare)
Geo Prizm GSi (based on Toyota AE92 chassis; 1990–1992) Toyota engineers had skillfully optimized the power and torque from the company's relatively low-displacement engines. 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 second generation engine was produced from 1992 until 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 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 first-generation 4A-GE which was introduced in 1983 replaced the 2T-G in most applications. The first- and second-generation engines are very popular with racers and tuners because of the ease of modification, simple design, and lightness The 1·5 L (1452 cc) 3A was produced from 1979 through 1988. 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. 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. All 4A engines have a displacement of 1·6 L (1587 cc). Only the AE86 version carried the 4A-GE engine and GT-S designations in the US In other markets, other designations were used The only exception was the US-market 1990-91 Geo Prizm GSi, which was equipped with the MAP 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 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. Numerous variations of the basic 4A design were produced, from SOHC 2-valve all the way to DOHC 5-valve versions. This raised the airspeed which caused better cylender filling and also better fuel atomisation. The next major modification was the high-performance 4A-G, with the fuel injected version, the 4A-GE, being the most powerful. 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. 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. Much confusion exists, even among dealers, as to which models contained what equipment, especially since Toyota split the Corolla line into both RWD and FWD versions, and the GT-S designation was only well known as a Celica version at that time. An AE85 chassis code may be a base model Corolla, or an SR-5, with a 4A-C engine.

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