Engine
8.3-Liter, OHV 20-Valve SMPI V-10


Type and Description
10-cylinder 90-degree V-type, liquid-cooled

Displacement
505 cubic inches

Construction
356-T6 aluminum alloy block with cast-iron liners, aluminum alloy cylinder heads

Bore x Stroke
4.03 inches x 3.96 inches

Valve System
Two pushrod-actuated overhead valves per cylinder with roller-type hydraulic lifters

Fuel Injection
Sequential, multi-port electronic with individual runners

Compression Ratio
9.6:1

Power (SAE net)
620 horsepower (est.) at 5600 rpm

Torque (SAE net)
640 lb.-ft. (est.) at 4600 rpm (max)

Max Engine Speed
6100 rpm

Fuel Requirement
Premium (100 octane)

Oil Capacity
11 quarts, Mobil 1 15W50 Synthetic

Exhaust System
Stainless steel tubular exhaust manifold, GTS-R-style low-restriction racing mufflers, side exit

Front
Cast-aluminum unequal-length upper and lower A-arms with spherical bearing frame attachments, 2.25 inch race springs, Moton monotube coil-over, compression and rebound-adjustable dampers and six-lug production hubs

Rear
Cast aluminum unequal-length upper and lower A-arms with spherical bearing frame attachments, 2.25 inch race springs, Moton monotube coil-over, compression and rebound-adjustable dampers and six-lug production hubs

Steering Type
Power-assisted rack and pinion, solid mounted with travel restrictors

Overall Ratio
16.7:1

Turning Circle Diameter
53 feet

Motec race dash and data acquisition system with ECU interface, carbon fiber dash panels

Tires

Type
Toyo slicks

Size, Front
P305/645ZR18

Size, Rear
P345/690ZR18

Wheels

Type and Material
Three piece BBS, forged aluminum centers

Size, Front
18x11 inches wide

Size, Rear
18x13 inches wide