Differences Between Toyota A25A and A25C Engines?
2 Answers
The differences between Toyota Camry's A25A and A25C engines are as follows: 1. Version Differences: A25A represents Toyota's TNGA 2.5L engine, which is imported from Japan. The A25C engine, on the other hand, is the domestically produced version. 2. Assembly Differences: The A25A is imported as a complete engine assembly, fully assembled in Japan before being shipped. The A25C involves importing all necessary engine parts from Japan, which are then assembled at the GAC Group factory. 3. Performance Differences: Both the A25A and A25C engines feature new technology that allows free switching between the Otto cycle and Atkinson cycle systems, achieving a compression ratio of 13:1 for this internal combustion engine. In terms of new technology and power performance, the 2.5L engine delivers 240 nM of torque and 151 KW (205 horsepower), providing robust power for the new vehicle. The 4-2-1 exhaust manifold arrangement takes exhaust separation to a new level.
Oh, the Camry Hybrid uses the A25A engine, while my colleague's ES300h is equipped with the A25C. The biggest difference I noticed is the layout. The A25A is specifically designed for transverse front-wheel-drive platforms, making it very compact when fitted into the engine bay, resulting in excellent fuel efficiency and smooth driving. The A25C, on the other hand, is built for longitudinal rear-wheel-drive architectures, used in premium vehicles like Lexus and Crown. Its installation requires consideration for driveshaft space, making maintenance and disassembly a bit more challenging. Both engines are fundamentally based on the 2.5L high-speed combustion technology, with slight adjustments to the throttle and intake manifold design. On long drives, I found that the A25C, paired with rear-wheel drive, delivers a unique sporty feel, with stronger low-speed acceleration compared to the front-wheel-drive A25A. Although maintenance parts are interchangeable, the labor costs for longitudinal engine repairs are about 30% higher.
