Toyota 7A-FE Engine


  1. Specifications
  2. Overview, problems
  3. Performance tuning

Toyota 7A engine specs

Manufacturer  Kamigo Plant
Shimoyama Plant
Deeside Engine Plant
North Plant
Tianjin FAW Toyota Engine’s Plant No. 1
Also called Toyota 7A
Production 1990-2002
Cylinder block alloy Cast-iron
Configuration Straight-4
Valvetrain DOHC
4 valves per cylinder
Piston stroke, mm (inch) 85.5 (3.37)
Cylinder bore, mm (inch) 81 (3.19)
Compression ratio 9.5
Displacement 1762 cc (107.5 cu in)
Power output 78 kW (105 HP) at 5,200 rpm
82 kW (110 HP) at 5,600 rpm
86 kW (115 HP) at 5,600 rpm
89 kW (120 HP) at 6,000 rpm
Torque output 159 Nm (117 lb·ft) at 2,800 rpm
156 Nm (115 lb·ft) at 2,800 rpm
149 Nm (110 lb·ft) at 2,800 rpm
157 Nm (116 lb·ft) at 4,400 rpm
Redline
HP per liter 59.6
62.4
65.3
68.1
Fuel type Gasoline
Weight, kg (lbs)
Fuel consumption, L/100 km (mpg)
-City

-Highway
-Combined
for Corona T210
7.2 (32)
4.2 (56)

5.3 (44)
Turbocharger  Naturally aspirated
Oil consumption , L/1000 km
(qt. per miles)
up to 1.0
(1 qt. per 750 miles)
Recommended engine oil 5W-30
10W-30
15W-40
20W-50
Engine oil capacity, L (qt.) 3.7 (3.9)
Oil change interval, km (miles) 5,000-10,000
(3,000-6,000)
Normal engine operating temperature, °C (F)
Engine lifespan, km (miles)
-Official information
-Real


300,000+ (185,000+)
Tuning, HP
-Max HP
-No life span loss


The engine is installed in Toyota Avensis
Toyota Caldina
Toyota Carina
Toyota Carina E
Toyota Celica
Toyota Corolla
Toyota Corona
Toyota Corolla Spacio
Toyota Sprinter Carib
Geo Prizm

Toyota 7A-FE engine reliability, problems and repair

The Toyota 7A engine appeared in 1990 and became the biggest among the A-types. It differs from the basic 4A engine because it has a crankshaft with a piston stroke of 85.5 mm and bigger height of the cylinder block. The cylinder diameter remains the same and the engine itself is an enlarged copy of the 4AFE engine.
Toyota produced only one 7A-FE type of the engine but its capacity varied from 105 HP to 120 HP. It is not recommended to buy the weakest 7A-FE Lean Burn engine type because the system is quite a problematic one; its servicing is quite a costly thing.
The 7A-FE firing order is 1-3-4-2.
Apart from the 7A engines, they also produced younger 4A and 5A motors.
The 7AFE is equipped with a toothed timing belt. The car needs a belt replacement every 60,000 miles (100,000 km) of mileage.
In 1998, a new 1ZZ engine replaced the 7A-FE. It will be mentioned later.

Toyota 7A engine problems and malfunctions

The identity of the 7A and 4A engines construction was previously mentioned. Those facts concern the possible problems, which are similar for the two motors. HERE it is possible to get to know more information on them in detail.

Toyota 7A engine tuning

7A-GE. 7A-GZE. 7A-FE Turbo

The best you can do is to devise a hybrid engine of the 4AGE and 7AFE. You will need a cylinder block, crankshaft, connecting rods (all for 7A-FE) and to buy pistons, a cylinder head, and a gasket for the 4A-GE cylinder head (all for 4A-GE) . You will have to assemble all those things and adjust them on the ECU Megasquirt. Finally, you will achieve 180 horsepower.
One can assemble the 7A-GZE with the similar 4A-GZE and 7A-FE details in a same way.
The 7AGZE engine will sustain a stock pressure of 9-11 psi (0.6-0.8 bar). If you want to intensify the pressure up to 15-17 psi (1-1.2 bar), you will need to buy the forged pistons and H-beam connecting rods.

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