| The Toyota Supra JZA70 was released in mid 1990 and was fitted with the first generation of the JZ engine series, the 1JZ-GTE. Rated at 206kw, this pushed the Supra (*TwinTurbo R) to a mid 14 second quarter mile time, 1 second quicker than the MA70 Turbo. There were several specs of JZA70, ranging from the packed out luxury model (x) to the sports model (TwinTurbo R). The TwinTurbo R came factory with Recaro seats, steering wheel and shifter knob and matching trim panels, it also came fitted with Bilstein shock absorbers with up rated springs and charcoal 5 spoke alloys. Other features of the JZA70 Supra was the replacement of the mechanical clutch LSD with a Torsen unit. The final ratio was also changed to 4.11 compared to the 3.73 of the MA70. *to be continued..... | |||
| 1JZ-GTE Engine Specifications | |||
| Induction | Electronic Injection, Twin CT-12A Turbochargers (parallel), Intercooled | ||
| Valves | 24 | ||
| Camshafts | 2 (DOHC) | ||
| Intake Duration | ? | ||
| Intake Camshaft lift | ? | ||
| Intake valve diameter | 32mm | ||
| Intake Valve timing - Opening | ? | ||
| Intake Valve timing - Closing | ? | ||
| Exhaust Duration | ? | ||
| Exhaust Camshaft lift | ? | ||
| Exhaust valve diameter | 30mm | ||
| Exhaust Valve timing - Opening | ? | ||
| Exhaust Valve timing - Closing | ? | ||
| Bore x Stroke (mm) | 86 x 71.5 | ||
| Capacity (cc) | 2491 | ||
| Compression Ratio | 8.5:1 | ||
| Maximum Power | 206kw @ 6200rpm | ||
| Maximum Torque | 365nm @ 4800rpm | ||
| Redline | 7500rpm | ||
| Lubricant & Fluid Capacities | |||
| Oil system | 4.8 Litres, 10W-30 | ||
| Cooling system | 8.3 Litres | ||
| Radiator cap pressure rating | 10.7 to 14.9 psi | ||
| Thermostat rating | 82 degrees Celsius | Part Number 90916-03093 | |
| Gasket | Part Number 16325-62010 | ||
| Spark plug - Copper Tip | NGK BKR6ES-8N | ||
| Spark plug - Platinum Tip | NGK BKR6EP-8 | Part Number 90919-01181 | |
| Nippon Denso PK16R8 | Part Number 90919-01180 | ||
| Hydraulic unit water pump | Part Number 16090-49017 | ||
| Hydraulic water pump pulley | Part Number 16939-46010 | ||
| Non-Hydraulic water pump | Part Number 16100-49846 | ||
| Non-Hydraulic water pump pulley | Part Number 16371-46020 | ||
| Timing Belt | Part Number 13568-46010 (08/90 - 05/92)* | ||
| Part Number 13568-49025 (05/92 - 12/92) | |||
| Part Number 13568-49065 (12/92 - 05/93) | |||
| Serpentine belt | Part Number 90916-02306 | ||
| *Replacement Part Number - 13568-49025 | |||
| Manual Transmission Specifications (R154) | |||
| Gear ratios | |||
| Reverse | 3.18 | ||
| First | 3.251 | ||
| Second | 1.955 | ||
| Third | 1.310 | ||
| Fourth | 1.000 | ||
| Fifth | 0.753 | ||
| Lubricant Capacity - Gearbox | 3 Litres | ||
| Oil specifications | 80W-90 GL4 or 5 Gear Oil | ||
| Final Drive Ratio | 4.100 | ||
| Differential Code | G299 | ||
| Drive Pinion - Number of teeth | 10 | ||
| Ring Gear - Number of teeth | 41 | ||
| Ring Gear size | 200mm | ||
| Driveshaft Diameter | 29.60mm | ||
| Lubricant Capacity - Differential | 1.3 Litres | ||
| Oil specifications | API GL5 Hypoid Non-LSD Gear oil | ||
| Top Speed km/h @ rpm | |||
| First Gear | 67 @ 7500 | ||
| Second | 111 @ 7500 | ||
| Third | 166 @ 7500 | ||
| Fourth | 218 @ 7500 | ||
| Fifth | 289 @ 7500 | ||
| Speedo Corrections | |||
| Speed km/h | True km | ||
| 60 | |||
| 80 | |||
| 100 | |||
| 120 | |||
| Top Speed km/h @ rpm | |||
| First Gear | 64 @ 7200 | ||
| Second | 106 @ 7200 | ||
| Third | 158 @ 7200 | ||
| Fourth | 208 @ 7200 | ||
| Fifth | 276 @ 7200 | ||
| Acceleration | |||
| Standing start to... | Time (Seconds) | ||
| 60km | |||
| 80km | |||
| 100km | |||
| 120km | |||
| 400 metres | 14.5 @ ?mph | ||
| Rolling start | 3rd Gear | 4th Gear | 5th Gear |
| 40-70km | |||
| 60-90km | |||
| 80-110km | |||
| 100-130km | |||
| Turbocharger Specifications | |||
| Manufacturer | Toyota (Hitachi) | ||
| Type | CT-12A (Part Number : 17201-46010 (Front), 17208-46010 (Rear)) | ||
| Turbine size (Outlet diameter) | 42mm | ||
| Turbine size (Inlet diameter) | 51.6mm | ||
| Turbine Blade count | 8 | ||
| Turbine Material | Ceramic | ||
| Turbine Housing Outlet (ID) | 44.1mm | ||
| Turbine Housing Inlet (ID) | 33mm | ||
| Turbine Shaft Diameter | 8.5mm | ||
| Turbine housing A/R | .45 | ||
| Compressor size (Inlet diameter) | 35mm | ||
| Compressor size (Outlet diameter) | 54mm | ||
| Compressor Blade count | 10 | ||
| Compressor material | Aluminium | ||
| Compressor Housing Inlet (ID) | 37.9mm | ||
| Compressor Housing Outlet (ID) | 30mm | ||
| Compressor housing A/R | .30 | ||
| Bearing ID | 8.53mm | ||
| Bearing OD | 13.55mm | ||
| Bearing Width | 9mm | ||
| Bearing material | Bronze | ||
| Bearing oiling holes (per bearing) | 6 | ||
| *Wastegate size (ID) | 20mm | ||
| Actuator spring rate | 10 psi | ||
| Chassis Specifications (R Spec) | |||
| Driven wheels | Rear, Torsen LSD | ||
| 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 | 300 x 22mm (21mm min thickness), Vented discs, Single Piston calliper | ||
| Brakes Rear | 291 z 18mm (17mm min thickness), Vented discs, Single Piston calliper | ||
| Tyre Size | 225/50R16 | ||
| Wheel Size | 16x7" 5 stud 114.3pcd | ||
| Kerb Mass | 1580kg | ||
| Fuel Tank | 70Litres | ||
| Body Specifications | |||
| Claimed Cd | 0.33 | ||
| Wheelbase | 2595mm | ||
| Track Front | 1485mm | ||
| Track Rear | 1480mm | ||
| Length | 4620mm | ||
| Width | 1745mm | ||
| Height | 1300mm | ||
| 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 | ||
01 กรกฎาคม 2551
JZA70 Specifications
