built to conquer the greatest battle of all. your ... - World Challenge

The Cars
PONTIAC GTO
Class: SPEED GT
Year Models Eligible: 2004-2006
Vehicle Type: Front engine, rear wheel drive, two door coupe.
Engine Layout: V8, aluminum block and heads.
Displacement: 6026cc (368 ci)
Valves: 16
Compression: 12.0:1
Induction: Naturally Aspirated
Maximum Boost: N.A.
Maximum Engine Speed: 7400 rpm
Horsepower: 520hp
Torque: 465lb-ft
Wheelbase: 109.0"
Wheel Size (F-R)(max.): 11x18" - 13x18"
Tire Size (F-R): 275/35/18" - 335/30/18"
Forward Gears: 6
Differential: Type: Limited Slip
Weight Dist. Limit: 50%
Restrictor: N.A.
Other modifications: Corvette uprights and alternate control arms are permitted. Firewall
may be moved rearward 3 in.
History: First entered by Autosport Development in 2004. Group-A-Racing took over the cars
in 2008.
Best Qualifying: 6 (Lime Rock Park, 2005)
Best Result: 4 (Lime Rock Park, 2005)
136 2009 SCCA Pro Racing SPEED World Challenge Media Guide
PORSCHE 911 GT3 CUP (997)
Class: SPEED GT
Year Models Eligible: 2006 - 2009
Vehicle Type: Rear engine, rear wheel drive, two door coupe
Engine Layout: Flat 6, aluminum block and heads
Displacement: 3795 cc (231.5 ci)
Valves: 24
Compression: 13.7:1
Induction: Naturally aspirated
Maximum Boost: N.A.
Maximum Engine Speed: 8900 rpm
Restrictor: 30 percent
Horsepower: 500 bhp
Torque: 303 lb-ft.
Wheelbase: 92.5"
Wheel Size (F-R)(max.): 10.5x18" - 12x18"
Tire Size (F-R): 265/35/18" - 305/35/18"
Forward Gears: 6
Differential: Type: Limited Slip
Weight Dist. Limit: 42/58
Restrictor: 35%
Other modifications: Porsche Motorsport North America engine upgrade permitted. Alternate
PMNA intake manifold permitted. Approved alternate body panels permitted. Cars must use specified
Porsche muffler to meet sound limit. Cars utilizing stock GT-3 Cup car engine may reduce
weight by 100lbs. Cars utilizing IMSA GT-3 Cup body work and suspension may reduce weight by
100 lbs.
History: Car that carried Randy Pobst to 2007 and 2008 SPEED GT Drivers’ Championships and
Porsche to the 2008 SPEED GT Manufacturers’ Championship Presented by RACER Magazine.
Poles (Most Recent): 7 (New Jersey Motorsports Park, 2008)
Wins (Most Recent): 8 (New Jersey Motorsports Park, 2008)
2009 SCCA Pro Racing SPEED World Challenge Media Guide 137
The Cars