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Toyota 7M-GTE Engine Specifications
The Toyota 7MGTE is a 3.0 L (2,954 cc, 180.26 cubic inches)
straight-six, four-stroke cycle turbocharged gasoline engine from the
Toyota M-family. The engine was manufactured by the Toyota Motor
Corporation from 1986 to 1992. The Toyota 7M-GTE was top performance
engine until it was replaced by the 1JZ-GTE.
The engine features a cast-iron block, aluminum cylinder
head with dual belt-driven overhead camshafts and four valves per
cylinder (24 in total). The 7MGTE is equipped with an electronic
fuel injection system and a turbocharger with 5 psi (0.34 bar). It has
an 83.0 mm (3.27 in) cylinder bore and 91.0 mm (3.58 in) piston stroke.
Compression ratio rating is 8.4:1.
The 7M-GTE engine produced 235 PS (173 kW; 232 HP) at 5,600 rpm of
maximum horsepower and 344 Nm (35.1 kgm, 253.5 ft-lb) at 4,000 rpm of
peak torque.
Engine code identification:
7 - 7 generation engine
M - Engine family
G - Performance wide-angle DOHC
T - Turobchagered
E - Multi-Point Fuel Injection
| GENERAL TECHNICAL DATA |
Engine model ...................... 7M-GTE
Cylinder layout ...................... Four stroke, Inline-6
(Straight-6)
Fuel type ...................... Gasoline
Year of production ...................... 1986-1992
Total displacement ...................... 3.0 L, 2,954 cm3 (180.26 cu
in)
Fuel system ...................... Multi-point fuel injection system
Power adder ...................... Turbocharger with 5 psi (0.34 bar)
Max. horsepower ...................... 235 PS (173 kW; 232 HP) at 5,600
rpm
Max. torque ...................... 344 Nm (35.1 kgm, 253.5 ft-lb) at
4,000 rpm
Firing order ...................... 1-5-3-6-2-4
Dimensions (L x H x W) ...................... No data available
Weight ...................... 210 kg (463 lbs)
| CYLINDER BLOCK |
The Toyota 7M-GTE engine has a cast-iron cylinder block, bore is 83.0 mm
(3.27 in) and the piston stroke is 91.0 mm (3.58 in). The cylinder
block, a monoblock specially cast structure, employs the seven bearing
support system. The crankshaft has seven journals.
The pistons are aluminum casting. Each piston is fitted with two
compression rings and a single oil ring. Compression ratio rating is
8.4:1.
Cylinder block alloy ...................... Cast-iron
Compression ratio ...................... 8.4:1
Cylinder bore ...................... 83.0 mm (3.27 in)
Piston stroke ...................... 91.0 mm (3.58 in)
Number of piston rings (compression / oil) ...................... 2 / 1
Number of main bearings ...................... 7
Cylinder inner diameter (standard) ...................... 82.990-83.040
mm (3.2673-3.2693 in)
Piston skirt diameter (standard) ...................... 82.910-82.960
mm (3.2642-3.2661 in)
Piston pin outer diameter ...................... 21.996-22.009 mm
(0.866-0.8665 in)
Piston ring side clearance ...................... Top
...................... 0.030-0.070 mm (0.0012-0.0028 in)
Second ...................... 0.020-0.060 mm (0.0008-0.0024 in)
Piston ring end gap ...................... Top ......................
0.290-0.440 mm (0.0114-0.0173 in)
Second ...................... 0.250-0.530 mm (0.0098-0.0209 in)
Oil ...................... 0.100-0.440 mm (0.0039-0.0173 in)
Crankshaft main journal diameter ...................... 60.007-60.012
mm (2.3625-2.3627 in)
Crankpin diameter ...................... 51.993-52.000 mm (2.047-2.0472
in)
Main bearing cap bolts torque specs:
102 Nm; 10.4 kgm; 75 ft-lb
Connecting rods cap bolts torque specs:
64 Nm 6.5 kgm; 47 ft-lb
Flywheel / Drive plate bolt torque specs:
74 Nm 7.5 kgm; 54 ft-lb
| CYLINDER HEAD |
The cylinder head is made of a light, strong aluminum alloy with good
cooling efficiency. Camshafts are made of specially cast steel and are
driven by a timing belt.
Cylinder head alloy ...................... Aluminum
Valve Arrangement ...................... DOHC, belt drive
Valves ...................... 24 (4 valves per cylinder)
Intake duration ...................... No data available
Exhaust duration ...................... No data available
Valve head diameter ...................... INTAKE
...................... 32.0 mm (1.2598 in)
EXHAUST ...................... 27.5 mm (1.0629 in)
Valve length ...................... INTAKE ...................... 98.15
mm (3.8642 in)
EXHAUST ...................... 98.15 mm (3.8642 in)
Valve stem diameter ...................... INTAKE
...................... 5.970-5.985 mm (0.235-0.2356 in)
EXHAUST ...................... 5.965-5.980 mm (0.2348-0.2354 in)
Valve spring free length ...................... 41.64 mm (1.6394 in)
Camshaft lobe height ...................... INTAKE
...................... 38.85 mm (1.5295 in)
EXHAUST ...................... 38.35 mm (1.5098 in)
Camshaft journal diameter ...................... №1
...................... 26.949-26.965 mm (1.061-1.0616 in)
№2-7 ...................... 26.888-26.975 mm (1.0586-1.062 in)
Cylinder head torque specs:
78 Nm; 8.0 kgm; 58 ft-lb
| MAINTENANCE DATA |
Valve clearance (Cold)
Intake valve (COLD) ...................... 0.15-0.25 mm (0.006-0.0100
in)
Exhaust valve (COLD) ...................... 0.20-0.30 mm (0.0079-0.0188
in)
Compression pressure
Standard ...................... 10.0 kg/cm2 / 300 rpm
Minimum ...................... 9.0 kg/cm2 / 300 rpm
Oil system
Oil consumption , L/1000 km (qt. per miles) ...................... up to
0.5 (1 qt. per 1200 miles)
Recommended engine oil ...................... 5W-30
5W-40
10W-30
Oil type API ...................... SE, SF or better
Engine oil capacity (Refill capacity) ...................... Without oil
filter: 3.9-4.2 l (4.1-4.4 US qts, 3.4-3.7 Imp qts)
With oil filter: 4.2-4.4 l (4.4-4.7 US qts, 3.7-3.9 Imp qts)
Oil change interval, km (miles) ...................... 10,000 (6,000)
Ignition system
Spark plug ...................... Platinum tipped type:
DENSO: PQ20R-P8; NGK: BCPR6EP-N8
Spark plug gap ...................... 0.8 mm (0.0315 in)
Spark plug torque ...................... 18 Nm (1.8 kgm, 13.3 ft-lb)
| VEHICLE APPLICATIONS |
Model ...................... Years Produced
Toyota Supra (MA70) ...................... 1986-1992
Toyota Soarer (MZ20/MZ21) ...................... 1986-1991
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| Engines Technical Specifications |