1991 GMC SYCLONE Luxury II Sedan

The GMC Syclone is a high-performance version of the GMC Sonoma pickup truck. 2995 Syclones were built in 1991, and 3 in 1992. Featuring a turbocharged 6-cylinder engine, all wheel drive, and 4 wheel anti-lock brakes. The Syclone trucks featured a Mitsubishi TD06-17C 8 cm² 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 Syclones had a 700R4 (4L60) 4-speed automatic transmission. A Borg Warner all wheel drive transfer case split torque with 35% forward and 65% to the rear wheels. The Syclone trucks featured sport modifications to the standard suspensions. The Syclone was the first production truck to receive a 4 wheel anti-lock braking system. Output was 280 hp (209 kW) and 350 lb·ft (475 N·m). The Syclone, when new, was capable of accelerating from 0-60 mph in 4.6 seconds and could do a quarter-mile run in 13.4 seconds at 98 mph (158 km/h).Car & Driver tested the Syclone and it ran 0-30 in 1.3 seconds with a 0-60 in 4.3 seconds, the 1/4 mile was 13.06