Toyota 4A-GE Engine Review

Toyota 4A-GE JDM Engines

Occasionally discuss Japanese machine okay buddy. Admin will review the evil machine made by Toyota. Ie machine with code 4A-GE.

This 4A-GE engine developed by Toyota is working with Yamaha responsible for developing 4A-GE cylinder head. From the beginning of its development, this machine was developed as a tough and high-performance machine, as the successor of 2T-G engine that is famous for tough and powerful.

From the beginning of its development, this machine was developed as a tough and high-performance machine, as the successor of 2T-G engine that is famous for tough and powerful. 

4A-GE is developed from a base 4A engine with a capacity of 1587cc obtained from 81mm piston diameter and 77mm piston step. And has aluminum cylinder head, and cast iron cylinder block.

Toyota 4A-GE Engine produced from 1983-1998, and has five variants, that is :

• The first Generation : 1983-1987 Toyota 1600 4A-GE Twin Cam 16-valve

1983-1987 Toyota 1600 4A-GE Twin Cam 16-valve

This first-generation machine has a compression ratio of 9.4: 1 and large inlet diameter, because 4A-GE is designed to have an inter-valve angle of 50 degrees, so it can have a large valve size. But because of the large inlet diameter, the airspeed of fuel and air mixture becomes low in the lower RPM. To overcome this, Toyota equipped the 4A-GE with the T-VIS technology (Toyota Variable Intake System) in the form of butterfly valve in the engine's inlet, this valve will close some of the inlet at low RPM, so airspeed in the inlet becomes higher At low RPM. The working principle of T-VIS is similar to RC-Valve's working principle on Honda NSR. The maximum power of this version is 112HP / 6600RPM and 131HP / 4800RPM (USA Version).

• Second Generation : 1987-1989 Toyota 1600 4A-GE Twin Cam 16-valve

1987-1989 Toyota 1600 4A-GE Twin Cam 16-valve

In this second generation, observations were made on machine block and Big-End bearing diameter on enlarged crutches. The maximum power of this version is 115HP / 6600RPM and 131HP / 4800RPM. (USA Version).

• Third Generation : 1989-1991 Toyota 1600 4A-GE Twin Cam 16-valve Red Top

1989-1991 Toyota 1600 4A-GE Twin Cam 16-valve Red Top

At 4A-GE Red Top, the engine's inlet channel is redesigned and shrunk in diameter to allow airspeed to flow in better speed, so the Red Top engine does not have T-VIS. The compression ratio was also increased to 10.3: 1. The maximum power of this version is 123HP / 7200RPM and 149HP / 4800RPM (USA Version). Red Top nickname is obtained from the words "Twin Cam 16 Valve" which is red in the camshaft cover.

• Fourth Generation : 1991-1995 Toyota 1600 4A-GE 20-valve DOHC Silver Top

1991-1995 Toyota 1600 4A-GE 20-valve DOHC Silver Top

4A-GE Silver Top has 5 valves in each cylinder (3 In - 2 Ex), and has been equipped with VVT technology (Variable Valve Timing) on the intake cam. In addition the compression ratio was again increased to 10.5: 1. In addition, the inlet is changed using a short intake manifold with an individual throttle of 43mm in diameter for each cylinder. The maximum power of this version is 160HP / 7400RPM and 162HP / 5200RPM.

• Fifth Generation : 1995-1998 Toyota 1600 4A-GE 20-valve DOHC Black Top

1995-1998 Toyota 1600 4A-GE 20-valve DOHC Black Top

It is an upgraded silver top by increasing the compression ratio to 11: 1, and improving the inlet design, increasing the throttle body diameter to 45mm, and enlarging the inlet valve to 8.2mm. . The maximum power of this version is 165HP / 7800RPM and 162Nm / 5600RPM.

In addition to the above five versions, 4A-GE engine has a forced-induction variant, the 4A-GZE is equipped with roots-type supercharger pressurized 0.6 bar. It has 8: 1 compression ratio.