- Engine Type: 1.6-liter, four-cylinder, dual-overhead-cam, four-valve.
- Performance Focus: Designed for high-revving performance rather than low-end torque.
- Yamaha Collaboration: The performance cylinder head was developed in collaboration with Yamaha Motor Corporation.
- Electronic Fuel Injection (EFI): Featured electronic fuel injection, which was advanced for mass-produced engines of its time.
- Legendary Status: Gained legendary status in racing, particularly in Formula Atlantic, for achieving high horsepower for its displacement.
Common Applications: Toyota Corolla AE86 (its first generation), Toyota Celica, Toyota MR2, and Gea Prism and Chevrolet Nova (rebadged Toyotas).
Legacy and Tuning:
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Versatile Platform:The 4A-GE is a highly tunable engine, with decades of modifications.
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Evolution:The engine went through multiple generations, with significant improvements in later models, such as larger rod journals and external reinforcements.
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Popular Modifications:Modifications include turbocharging, supercharging (the factory “4AGZE”), and naturally aspirated upgrades like individual throttle bodies and aggressive camshafts.
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Enduring Appeal:Despite its age, it remains a popular choice for engine swaps and performance builds due to its availability, reliability, and the fun factor of working with it.
General Specifications
- Configuration: DOHC Inline-4
- Displacement: 1.6 L (1,587 cc)
- Bore: 81 mm
- Stroke: 77 mm
- Valves: 16-valve or 20-valve (5 per cylinder)
- Fuel System: Multi-Point Fuel Injection (MPFI)
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Power:
Ranges from approximately 115-128 hp (117-130 PS) in 16-valve models, with later 20-valve engines achieving higher outputs.
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Torque:
Varies by generation, with earlier models producing around 148 N⋅m (109 lb-ft).
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Redline:
High redline, often around 7,600 rpm.
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TVIS:
The Toyota Variable Intake System was used on earlier 4A-GEs, employing butterflies to alter intake port geometry for improved low-end torque and high-end performance.
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20-Valve Heads:
Later generations, such as the “Silver Top” and “Black Top” engines, featured 20 valves per cylinder for enhanced performance.
The 4A-GE was a popular engine in various Toyota models:
- Toyota Corolla: AE86/AE82
- Toyota Sprinter Trueno
- Toyota MR2: AW11
- Toyota Celica: AA63
- 16-Valve: The original 4A-GE featured a 16-valve cylinder head and often incorporated the TVIS.
- 20-Valve: Later versions, known as the 4A-GE 20V, introduced three intake valves per cylinder and could have more features like a distributor mounted on the exhaust cam.
- 4AGZE: A supercharged variant of the 4A-GE engine.
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