JZA70 and MA70 Specifications
Reply With QuoteMA70 Specifications
The Toyota Supra MA70 was released in mid 1986 and was fitted with the 7th generation of the M engine series, the 7M-GTE. Rated at 173kw of power and 344nm of torque, this pushed the Supra to a mid 15 second quarter mile time.
7M-GTE Engine Specifications
Electronic Injection (AFM), CT-26 Turbocharger, Intercooled
Valves 24
Camshafts 2 (DOHC)
Intake Duration 200
Intake Camshaft lift 7.44mm
Intake valve diameter ?
Intake Valve timing - Opening 6° BTDC
Intake Valve timing - Closing 50° ABDC
Exhaust Duration 201
Exhaust Camshaft lift 7.44mm
Exhaust valve diameter ?
Exhaust Valve timing - Opening 53° BBDC
Exhaust Valve timing - Closing 3° ATDC
Bore x Stroke (mm) 83 x 91
Capacity (cc) 2954
Compression Ratio 8.4:1
Maximum Power 173kw @ 5600rpm*
Maximum Torque 344nm @ 3200rpm
Redline 6500rpm**
*Late model 7M-GTE's had a slight power increase to 176kw, torque remained unchanged.
**Late model 7M-GTE's contained a fully counter balanced crankshaft which reduced the redline to 6250rpm
7M-GTE Engine Specifications (GT Turbo A)
Electronic Injection (MAP), CT-26 Turbocharger, Intercooled
Valves 24
Camshafts 2 (DOHC)
Intake Duration 210
Intake Camshaft lift 7.44mm
Intake valve diameter ?
Intake Valve timing - Opening ?° BTDC
Intake Valve timing - Closing ?° ABDC
Exhaust Duration 211
Exhaust Camshaft lift 7.44mm
Exhaust valve diameter ?
Exhaust Valve timing - Opening ?° BBDC
Exhaust Valve timing - Closing ?° ATDC
Bore x Stroke (mm) 83 x 91
Capacity (cc) 2954
Compression Ratio 8.4:1
Maximum Power 204kw @ 5600rpm
Maximum Torque 354nm @ 4400rpm
Redline 6500rpm
7M-GE Engine Specifications
Multipoint Fuel Injection (AFM), Normally Aspirated
Valves 24
Camshafts 2 (DOHC)
Intake Duration ?
Intake Camshaft lift @ 50 Thou 7.44mm
Intake valve diameter ?
Intake Valve timing - Opening 6° BTDC
Intake Valve timing - Closing 40° ABDC
Exhaust Duration ?
Exhaust Camshaft lift @ 50 Thou 7.44mm
Exhaust valve diameter ?
Exhaust Valve timing - Opening 53° BBDC
Exhaust Valve timing - Closing 3° ATDC
Bore x Stroke (mm) 83 x 91
Capacity (cc) 2954
Compression Ratio ?:1
Maximum Power 149kw @ 6000rpm (200HP)
Maximum Torque 255nm @ 3600rpm (188ft/lb)
Redline 6500rpm
Lubricant & Fluid Capacities
Oil system 5 Litres, 10W-30
Cooling system 8.3 Litres
Radiator cap pressure rating 10.7 to 14.9 psi
Thermostat rating 88 degrees Celsius Part Number 90916-03083 Gasket Part Number 16341-35010
Spark plugs
Copper Tip NGK BPR6ES
Platinum Tip NGK BPR6EP Part Number 90919-01146
Nippon Denso PQ20R Part Number 90919-01145
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5 Speed Manual Transmission Specifications (7M-GTE)
Gearbox model R154 Km/hr per 1000rpm
Reverse 3.18
First 3.251 9.6
Second 1.955 16
Third 1.310 24
Fourth 1.000 31.4
Fifth 0.753 41.7
Gearbox Lubricant Capacity - 3 Litres
Oil specifications SAE 80W-90 GL4 or 5 Gear Oil
Diff Specifications (7M-GTE Manual)
Final Drive Ratio 3.727
Differential Code G305
Drive Pinion - Number of teeth 11
Ring Gear - Number of teeth 41
Ring Gear size 200mm
Driveshaft Diameter 29.60mm
Differential Lubricant Capacity - 1.3 Litres
Oil specifications API GL5 Hypoid Non-LSD Gear Oil
5 Speed Manual Transmission Specifications (7M-GE)
Gearbox model W58 Km/hr per 1000rpm
Reverse 3,768
First 3.285
Second 1.894
Third 1.275
Fourth 1.000
Fifth 0.783
Gearbox Lubricant Capacity - 2.6 Litres
Oil specifications SAE 75W-90 or 80W-90 GL4 or 5 Gear Oil
Diff Specifications (7M-GE Manual)
Final Drive Ratio 4.3
Differential Code
Drive Pinion - Number of teeth 10
Ring Gear - Number of teeth 43
Ring Gear size 200mm
Driveshaft Diameter 29.60mm
Differential Lubricant Capacity - 1.3 Litres
Oil specifications API GL5 Hypoid Non-LSD Gear Oil
4 Speed Automatic Transmission Specifications (7M-GTE)
Gearbox model A340E Km/hr per 1000rpm
Reverse 2.393
First 2.804
Second 1.531
Third 1.000
Fourth 0.705
Gearbox Lubricant Capacity - 7.2 Litres
Oil specifications ATF Type II Dexron
Diff Specifications (7M-GTE Automatic)
Final Drive Ratio 3.7272
Differential Code G305
Drive Pinion - Number of teeth 11
Ring Gear - Number of teeth 41
Ring Gear size 200mm
Driveshaft Diameter 29.60mm
Differential Lubricant Capacity - 1.3 Litres
Oil specifications API GL5 Hypoid Non-LSD Gear Oil
4 Speed Automatic Transmission Specifications (7M-GE)
Gearbox model A340E Km/hr per 1000rpm
Reverse 2.393
First 2.804
Second 1.531
Third 1.000
Fourth 0.705
Gearbox Lubricant Capacity - 7.2 Litres
Oil specifications ATF Type II Dexron
Diff Specifications (7M-GE Automatic)
Final Drive Ratio 4.3
Differential Code
Drive Pinion - Number of teeth 10
Ring Gear - Number of teeth 43
Ring Gear size 200mm
Driveshaft Diameter 29.60mm
Differential Lubricant Capacity - 1.3 Litres
Oil specifications API GL5 Hypoid Non-LSD Gear Oil
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Speedo Corrections
Speedo km/h - True km/h
60 - 58
80 - 78
100 - 97
120 - 117
Top Speed km/h @ rpm
First Gear - 62 @ 6500
Second - 104 @ 6500
Third - 156 @ 6500
Fourth - 204 @ 6500
Fifth - 275 @ 6500
Acceleration
Standing start to... Time (Seconds)
60km - 3.5
80km - 5.5
100km - 8.1
120km - 11
400 metres - 15.5 @ 92mph ; GT Turbo A 14.4 @ 98mph
Rolling start (7M-GTE) 3rd Gear, 4th Gear, 5th Gear
40-70km - 4.8, 5.6, 9.8
60-90km - 4.2, 5.3, 8.6
80-110km - 4.0, 5.2, 7.6
100-130km - 4.6, 5.4, 8.0
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Turbocharger Specifications
Manufacturer Toyota (Hitachi)
Type CT-26 (Part Number 17201-42020)
Turbine size (Outlet diameter) 52mm
Turbine size (Inlet diameter) 68mm
Turbine Blade count 11
Turbine Material Steel
Turbine Housing Outlet (ID) 60.6mm
Turbine Housing Inlet (ID) 60mm
Turbine Shaft Diameter 10mm
Turbine housing A/R ?
Compressor size (Inlet diameter) 46mm
Compressor size (Outlet diameter) 65mm
Compressor Blade count
Compressor material Aluminium
Compressor Housing Inlet (ID) 70mm
Compressor Housing Outlet (ID) 61.5mm
Compressor housing A/R ?
Bearing ID 10.05mm
Bearing OD 16.9mm
Bearing Width 9mm
Bearing material Bronze
Bearing oiling holes (per bearing) 6
*Wastegate size (ID) 25.8mm
Maximum wastegate size (ID) 28mm
Actuator spring rate 6.8 psi
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Chassis Specifications (R Spec)
Driven wheels Rear, Torsen LSD
Weight Distribution
Suspension, front Wishbones, Bilstein dampers, coil springs, anti roll bar
Suspension, rear Wishbones, Bilstein dampers, coil springs, anti roll bar
Steering Power assisted rack and pinion
Turns lock to lock 2.8
Turning circle 10.8mtrs
Brakes Front 302 x 22mm (21mm min thickness), Vented discs, Single Piston calliper
Brakes Rear 291 x 18mm (17mm min thickness), Vented discs, Single Piston calliper
Tyre Size 225/50R16
Wheel Size 16x7" 5 stud 114.3pcd
Kerb Mass 1600kg
Fuel Tank 70Litres
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Body Specifications
Claimed Cd - Without wing 0.33
Claimed Cd - With wing
Wheelbase 2595mm
Track Front 1485mm
Track Rear 1480mm
Length 4620mm
Width 1745mm
Height 1300mm
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Interior Dimensions
Dash to rear seat 1515mm
Drivers seat to wheel (min/max) 515/750mm
Drivers seat to pedals (min/max) 350/570mm
Rear kneeroom (min/max) 45/275mm
Shoulder width, front 1330mm
Shoulder width, rear 1280mm
Front cushion depth 500mm
Front cushion height (min/max) 250/275mm
Rear cushion depth 470mm
Rear cushion height 240mm
Front door opening length/height 1220/830mm
Boot Dimensions
Floor length (seat up) 970mm
Floor length (seat down) 1500mm
Floor width (min/max) 750/1300mm
Floor cover/roof (min/max) 330/640mm
Opening Depth 1145mm
Lip to lid 830mm
Loading height (lip to ground) 900mm
Originally Posted by JZA70 R
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