GMC Syclone
Years 1991-1992
Curb Weight 3,599 Lbs.
Tow Capacity 1,100 Lbs.
Base Price $25,500
Lateral G's 0.82
Braking 60-0 120.00 ft.
Braking 70-0 186.00 ft.
600 ft. Slalom 60.90mph (98.05kph)
Drivetrain Front / AWD
Engine 4.3L Turbocharged v 6 (Premium Unleaded)
Power 280hp (208.9kW) @ 4400 rpm
360lb-ft (486.0Nm) @ 3600 rpm
Performance 0-60: 4.3sec.
1/4mile: 13.500 @ 98.000 mph (157.8kph)
Top Speed: 126.0mph (202.9kph)

The Syclone was a high-performance version of the GMC Sonoma pickup truck. Produced in 1991, the Syclone spawned the similarly powered 1992-1993 GMC Typhoon SUV. Another vehicle, the GMC Sonoma GT, offered less performance but was seen as a companion model.

Both the Syclone and Typhoon (SyTy) 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 throttle body from the 5.7 L GM Small-Block engine. All SyTy's had a 700R4 (4L60) 4-speed automatic transmission. A Borg Warner all wheel drive 1372/4472 transfer case split torque with 35% forward and 65% to the rear wheels. Both trucks featured upgraded brakes and 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 360 ft.lbf (488 Nm). The Syclone were capable of accelerating from 0-60 mph in under 5 seconds and could do a quarter-mile run in about 13 seconds.

In 1991 Syclones were available in black only. 1992 models were to be offered in a wider range of colors before they were canceled. 2995 Syclones were built in 1991, and 3 in 1992. 113 (estimated 31 returned) were reported as Export Sales including a subset now referred to as the Saudi Syclones - a small number were delivered to Saudi Arabia and modified with a metric dash cluster, leaded fuel chip, and a resonator in place of the catalytic converter.

There were two special 1991 Syclones offered by third-parties:

  • Marlboro converted ten to give away in a promotion. The Marlboro Syclones were repainted Hot Licks Red and received a targa top, racing seats, performance chip changer, hard tonneau cover, wheels, Borla exhaust, and white sticker package.
  • Three Indy Syclones were used at the Indianapolis 500 race on May 24th, 1992 with the only modifications being a sticker package. One of these Indy trucks was converted into the PPG Syclone Pace Truck (though it was not the official pace car) with significant modifications, including a multi-colored silver, magenta, and aqua paint scheme, a molded in light bar in the roof, a racing fuel cell and fire system.

The Syclone, Typhoon, and Sonoma GT were built for GMC by Production Automotive Services of Troy, Michigan and sold through dealerships.

Source: Wikipedia

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Other 1991's: Marlboro GMC Syclone , PPG Indy GMC Syclone , Jason Leach's Pro Street GMC Syclone ,
"We're going road racing in a truck. That's so wrong." - Gale Banks