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1991 GMC Syclone - Double Time

DATA FILE
Car: 1991 GMC Syclone
Owner: Ed Hess
Block: Bowtie V-6, 266 ci
Compression ratio: 11.5:1
Heads: Brodix, ported and polished by Timothy John Racing Engines, 2.08 intake, 1.60 exhaust valves
Cam: Solid roller, custom grind
Pushrods: COMP Cams 7/16ths
Rocker arms: Jesel 1.7 ratio
Pistons: JE forged
Rings: Speed Pro
Crankshaft: Bryant Racing billet
Rods: Childs & Albert forged
Throttle body: Accel 1,000 cfm
Fuel injectors: Siemens 160 lbs/hr
Fuel pump: Dual Walbro 340 lph
Ignition: Accel distributor, MSD coil, MSD Digital 6 box, NGK plugs
Engine management: Accel DFI Gen VII+
Turbo: Dual Turbonetics T66
Boost: 20+ psi
Intercooler: MPE air-to-air
Wastegate: Dual Tial V44
Exhaust system: MPE 1.75-inch turbo manifolds, 3.5-inch downpipes
Transmission: Rossler TH400
Torque converter: PPC 3200-stall, 9-inch
Driveshafts: HD prop shaft, 3-inch chrome moly
Front suspension: Stock, removed sway bar
Rear suspension: Stock leaf springs re-arched, QA1 shocks, CalTracs traction bars
Rear end: GM 8.5-inch 10-bolt, Moser 33-spline axles, 3.08 gear, spool
Brakes: Stock front, aluminum rear drums
Wheels: Weld AlumaStar 15x8.25 front, 15x10 rear
Front tires: MT Drag Radials 235/60/15
Rear tires: Hoosier 26x11.5
Fuel octane: 118
Race weight: 3,650 lbs
Best ET/mph: 9.50 at 144
Best 60-ft. time: 1.42
Current mileage: 106,000


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