The ‘A’ family of engines is unlike the very first Toyota type A engine. Toyota first completed the type A engine in September of 1934. It was a 3.4 liter, 6 cylinder, reverse engineered Chevrolet power plant. Today’s ‘A’ family of engines was and still is a successful and versatile 4 cylinder over head camshaft mass production power plant. The ‘A’ family beginning was humble but was the foundation for Toyota to start its “New Generation” of compact, lightweight, powerful and efficient power plants during the early 80’s. The ‘A’ family was used as part of the bases to start Toyota’s “Second” Generation of sport type engines.
Toyota’s sport-type twin-cam engines utilize a DOHC 4-valve per-cylinder configuration, but it is a very simple and reliable one. The camshafts act directly on the valves (through the shim and follower) using the same principle that was employed on Salmson racing engines of 1927. The increase intake and exhaust valve area of a four-valve design improves the volumetric efficiency, and the lighter weight of the valve train allows higher-revs. As Toyota’s sports-type engines should be, these engines are designed and built for high output and quick response.
These engine are one of the few which can reach 11000Rpm and at that stage the sound of the engine is music to my ears haha......even though nw is the modern age but i still like it old school cause newer cars have too much electronics and we can't really enjoy the fel of the road :D
Da TRD tune black top 4A-GE rated at 220ps at 10000Rpm