Engine Cam Cover Lettering Power (kW) Year Car Models
4A - GZE No Colour 120 91.6 - 95.5 AE-101
4A - GZE No Colour 120 90.10 - 91.6 AE-92
4A - GZE No Colour 108 87.5 - 90.9 AE-92
4A - GZE No Colour 108 86.8 - 89.10 AW-11
4A - GE 20V Black 123 96.6 - AE-111
4A - GE 20V Silver 120 91.6 - 95.5 AE-101
4A - GE Red 100 89.8 - 92.8 AT-170
4A - GE Red 100 89.5 - 92.4 AE-92
4A - GE Red & Black 88 88.5 - 89.7 AT-170
4A - GE Red & Black 88 87.5 - 89.4 AE-92
4A - GE Blue & Black 88 85.8 - 88.4 AT-160
4A - GE Blue & Black 88 85.8 - 87.8 AT-160
4A - GE Blue & Black 88 85.8 - 87.7 AT-160
4A - GE ? 85.6 - 89.10 AW-11
4A - GE Blue & Black 88 84.6 - 85.5 AW-11
4A - GE Blue & Black 88 84.10 - 87.4 AE-82
4A - GE Blue & Black 88 83.5 - 87.4 AE-86

The following table contains the basic features that differentiate the various 4AGE models.

4AGE
Valves 16 16 16 16 20 20
Cam Box Colours / Lettering Colour Blue & Black on Silver background Blue & Black on Silver background Red & Black (previous motor still in USA) Red on Silver background Chrome on Silver background Black background
Car Model AE82/AE86 AW-11 AE-92/AW-11 AE-92 AE-101 AE-111
Year 83/5-87/5 84/6-87/5 87/5-89/5 89/5-91/6 91/6-95/5 95/5-
TVIS Yes Yes Yes No No No
Intake port size Large Large Large Small 4 Throttle 4 Throttle
Gudgeons 18 mm 18 mm 20 mm 20 mm 20 mm 20 mm
Conrod Big Ends 40 mm 40 mm 42 mm 42 mm 42 mm 42 mm
Main Bearings 48 mm 48 mm 48 mm 48 mm 48 mm 48 mm
Injection Type MAP (Japan/UK)

AFM (US/Europe)

 MAP MAP (Japan/UK?) MAP (Japan/UK?) AFM MAP
EFI D-Jetronic L-Jetronic L-Jetronic D-Jetronic D D
No of block ribs 3 3 7 7 7 7
Oil Cooled Pistons No No Yes Yes Yes Yes
Power (kW) 88 @ 6600 88 @ 6600 88 @ 6600 100 @ 7200 120 @ 7400 123 @ 7800
Power (HP) 118 @ 6600 118 @ 6600 120 @ 6600 140 @ 7200 160 @ 7400 165 @ 7800
Torque (kg-m) 14.5 @ 5200 14.5 @ 5200 14.5 @ 5200 15.0 @ 6000 16.5 @ 5400 16.5 @ 5600
Bore x Stroke 81.0 x 77.0 81.0 x 77.0 81.0 x 77.0 81.0 x 77.0 81.0 x 77.0 81.0 x 77.0
Compression 9.4 9.4 9.4 10.3 10.5 11
Octane Low Low Low (USA) High High High

Supercharged 4AGZE
Car Model AW11 AE92 AE92 AE101
Year 86/8-89/5 87/5-89/5 89/5-91/6 91/6-95/5
Injection Type AFM One Coil AFM Twin Coil MAP Twin Coil MAP Twin Coil
Power (kW) 108 @ 6400 108 @ 6400 120 @ 6400 126 @ 6400
Power (HP) 145 @ 6400 145 @ 6400 160 @ 6400 165 @ 6400
Torque (kg-m) 19 @ 4400 19 @ 4400 21 @ 4400 21 @ 4400
Compression 8 8 8.9 8.9
Octane Low High High High
Intake port size Large Large Small Small
Gudgeons 20 mm 20 mm 20 mm 20 mm
Conrod Big Ends 42 mm 42 mm 42 mm 42 mm
Main Bearing dia 48 mm 48 mm 48 mm 48 mm
No of block ribs 7 7 7 7
Oil Cooled Pistons Yes Yes Yes Yes


Notes
AW-11 is Mk 1 MR2, AE-86 is RWD Corolla GTS/Corolla Levin/Sprinter Trueno. AE-82, AE-92, AE-101 and AE-111 are FWD (or 4wd) Corollas, Sprinter Truenos, Corolla Levins, and Marinos etc.

AE 85 is 3A 1500cc SOHC version of AE 86, AE 91 is 4AFE Narrow Angle 16 Valve version of AE 92 etc.

MAP is Manifold Air Pressure sensor air flow measurement, AFM is measurement by Air Flow Meter.

TVIS is a set of butterflies that close off one of the intake valve ports below 4500 rpm to increase air flow and fuel atomisation. They are operated by manifold vacuum. Engines without TVIS (ie post 89.5 red Tops) have smaller intake ports.

All 4AGEs have the same exhaust ports and manifolds are basically interchangeable, but intake port design and size differ.

Red Top 4AGEs have an external oil drain at the back of the intake side.

4AGZEs and all post 89.5 4AGEs have a stronger block with 7 external ribs, bigger bearings and oil cooled pistons via jets that point up the bores.

Twin coil 4AGZEs have a crank angle sensor in the normal distributor location.

Inlet cam timing changes by approximately 15 degrees at 4500 rpm on 20 Valve engines.

The 100 kW 16 Valve, and 20 Valves all have a knock sensor, so it may be possible to run these engines on low octane fuel, however given the high compression of these engines, it is best to run high octane fuel so the best ignition advance profile can be used.

Original article by Phil Bradshaw. Corrections have been made, and edited.
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