GMC Typhoon

The GMC Typhoon was a high-performance version of the GMC Jimmy SUV. Produced in 1992 and 1993, the Typhoon was based on the 1991 GMC Jimmy SUV.

Both the Syclone and Typhoon (SyTy) trucks featured a Mitsubishi TD06-17C/8cm2 turbocharger and Garrett Water/Air intercooler attached to a 4.3 L LB4 V6 engine with unique pistons, main caps, head gaskets, intake manifolds, fuel system, exhaust manifolds, and a 48mm twin-bore throttle body from the 5.7 L GM Small-Block engine. All SyTy's had a 700R4 (4L60) 4-speed automatic transmission and a BorgWarner 1372/4472 transfer case splitting torque with 35% forward and 65% to the rear wheels. Both trucks featured all-wheel drive, upgraded brakes, and sport modifications to the standard suspensions. Output was officially 280 hp (209 kW) and 360 ft·lbf (488 N·m), but some stock Typhoons have been measured at over 300 hp (224 kW) on a dynamometer.

The Typhoon was capable of accelerating from 0-60 mph in 5.3 seconds and could do a quarter-mile run in 14.1 seconds at 95 mph (153 km/h). Car and Driver was impressed, comparing the Syclone's performance favorably to the Ferrari 348ts, Chevrolet Corvette, and Nissan 300ZX Turbo. It was a bargain at US$29,970, though the magazine criticized the plasticky interior pieces.

All three trucks were built for GMC by Production Automotive Services of Troy, Michigan. Aside from a handful of prototypes, only 4,967 Typhoons were built by GMC: 2,497 in 1992, and 2,200 in 1993.

See Wikicars' comprehensive  Review.

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