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| Porsche Builds Special Car for Rolex Series |
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Prototypes in the 2007 Rolex Grand-Am series, including Alex Job Racing, Eddie
Cheever Racing, and Brumos Racing. Those team driver announcements will be
finalized in the coming weeks.
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PORSCHE DAYTONA 24-HOUR FACTS
Overall Wins: 20 (first in 1968; most recent in 2003)
Class Wins: 60
Porsche 911 Wins: 35 Overall and Class Victories
Initial Overall Win: 1968
GT Class Wins: 25
SGS Class wins (class ran only in 2004): 1
20 Race Winning Streak (overall or class): 1966-1987
Finished 1-2 overall in 11 Daytona 24-Hours
GT class winner finishing second overall: 2001, 2004
From 1977 to 1988, Porsche had compiled 12 consecutive overall wins
GTX Series Winner: 1978-1981
GTP Series Winner: 1982-89, 1991
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2007 Porsche 911 GT3 Cup - Grand Am Version
Vehicle Description (997 Type)
Concept:
- single-seated, near-standard race vehicle
in accordance with the 2006 Grand American Rolex Series Regulations
Engine:
- water cooled flat six-cylinder boxer engine
- 3,598 cc, stroke 76.4 mm, bore 99,98 mm diameter
- max. power: 309 kW (420 BHP)
- max. torque: 410 Nm
- max. rpm: 8,400 rpm
- four valves per cylinder
- dry-sump lubrication
- two-stage resonance intake manifold, central inlet air duct
- electronic engine management system MS 3.1
- sequential multi-point fuel injection
- required fuel quality: 98 octane ROZ, unleaded
- race exhaust system in accordance with Grand-Am Regulations
Power Train:
- six-speed sequential dog-type gearbox
gear ratios:
ring & pinion gear 8/32 i = 4.0
1st gear 12/38 i = 3.16
2nd gear 15/32 i = 2.13
3rd gear 18/31 i = 1.72
4th gear 20/28 i = 1.40
5th gear 26/30 i = 1.15
6th gear 28/27 i = 0.96
- pressure-oil lubrication
- oil-water heat exchanger
- single-mass flywheel
- hydraulic clutch center-release mechanism
- 5.5" triple-disc sintered-metal clutch
- limited slip differential 40/60 per cent
- rear-wheel drive
Bodywork:
- self-supporting body shell made out of galvanized sheet steel
- carbon fiber doors with window frame and plastic rear-view mirrors
- carbon fiber rear lid
- welded-in roll cage incl. shoulder- and door bar
- air jack system
- aerodynamically optimized front bumper and front spoiler edge
- carbon fiber rear bumper
- racing seat (driver side only) with fire retardant upholstery
- six-point seat belt
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