The new engine used in the A70 Supra, the Toyota 7M-GE, was the flagship engine of Toyota's arsenal. Both versions of the engine contained 4 valves per cylinder and dual overhead cams. The turbocharged 7M-GTE engine was Toyota's first distributor-less engine offered in the US which used coil packs sitting on the cam covers and a cam position sensor driven by the exhaust camshaft. It was equipped with a CT26 turbocharger and was rated at 172 kW (231 hp; 234 PS) at 5,600 rpm while the naturally aspirated 7M-GE engine was rated at 149 kW (200 hp; 203 PS) at 6,000 rpm. Further refinement on the turbo model increased power to 173 kW (232 hp; 235 PS) at 5,600 rpm and 254 lb⋅ft (344 N⋅m) of torque at 3,200 rpm in 1989. This was mostly due to a redesign of the wastegate. All models used the same tyre size of 225/50R16 on 16x7 inch wheels. Spare tyres were full-sized but on steel wheels.The naturally aspirated model came standard with the W58 manual transmission. The turbocharged models included the more robust R154 manual transmission. Both were available with the optional 4-speed A340E automatic transmission.
The third-generation of the Supra represented a great deal of new technology. In 1986, options available for the Supra included a 3-channel ABS and TEMS which gave the driver two settings which affected the damper rates; a third was automatically activated at wide open throttle, hard braking and high speed maneuvering. ACIS (Acoustic Control Induction System), a method of controlling air compression pulses inside the intake piping to increase power, was also a part of the 7M-GE's technological arsenal. All models were fitted with double wishbone suspension front and rear. A targa top was offered in all model years along with a metal power sliding sunroof (added in 1991). Production numbers of the GA70/MA70/JZA70 Supra was estimated at 241,471 units.Toyota Supra MK3 GT Twin Turbo by Ti-Sonic
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