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Pontiac Solstice GXP Production & Drift Specifications

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Models: / Pontiac Solstice GXP / Pontiac Solstice GXP Drift
Body style: / two-passenger, two-door roadster convertible / two-passenger, two-door roadster hard-top
Driveline: / front-engine, rear-wheel drive performance model / front-engine, rear-wheel drive competition model
Construction: / welded galvanized steel enclosed central tunnel and hydroformed tube / welded galvanized steel enclosed central tunnel and hydroformed tube with SCCA roll cage
Exterior: / specific Solstice GXP front and rear fascias with dual-outlet exhaust / specific Solstice GXP front and rear fascias with dual-outlet exhaust. Carbon fiber hood, decklid, and top
Interior features: / driver/passenger GXP logo seats with red-accent stitching / Sparco driver racing seat; passenger seat delete
Transmission
Type: / five-speed manual (MM5) / six-speed Tremec (Chevy SSR)
Gear ratios: (:1):
First: / 3.75 / 3.01
Second: / 2.26 / 2.07
Third: / 1.51 / 1.43
Fourth: / 1 / 1
Fifth: / 0.73 / 0.71
Sixth: / N/A / 0.56
Reverse: / 3.67
Final drive ratio: / 3.73:1 LSD / 3.73:1 LSD
Clutch: / single disc / Exedy twin disc and custom flywheel
Suspension
Front: / independent short/long arm, with 33.3 mm stabilizer bar / independent short/long arm with four-way adjustable shocks and coil-overs
Rear: / independent short/long arm, with 25.4 mm stabilizer bar / independent short/long arm with four-way adjustable shocks and coil-overs
Brakes
Type: / four-wheel disc; ABS with dynamic rear proportioning and ESC / four-wheel disc, with adjustable brake bias front-to-rear
Front Rotors: / 296mm x 25mm vented discs / Rotora two-piece 298mm x 21mm directional slotted discs
Rear Rotors: / 278mm x 13mm solid discs / Rotora two-piece 298mm x 21mm directional slotted discs
Front Calipers: / single piston calipers / Rotora forged micro six-piston calipers with Rotora H6 NAO ceramic pads
Rear Calipers: / single piston calipers / Rotora two-piston calipers with Rotora H6 NAO ceramic pads
Wheels/Tires
Wheel size and type: / 18 inch x 8 inch polished aluminum / Racing Hart 18 inch x 9 inch front, 18 inch x 9.5 inch rear aluminum
Tires: / P245/45R18- Goodyear Eagle F1 GS2 96W all-season tires / Bridgestone Potenza RE-01R, P265/35R18-93W rear, P225/40R18-88W front
Engine
Assembly site: / Spring Hill, Tenn. / GM Racing, Wixom, Mich.
Type: / ECOtec 2.0-liter DOHC turbocharged I-4 / ECOtec 2.0-liter DOHC turbocharged I-4
Bore x stroke: / 86mm x 86mm / 86mm x 88.5mm
Block material: / 319 aluminum / 319 aluminum with thick-wall iron cylinder liners
Cylinder head material: / 356 T6 aluminum / 356 T6 aluminum with race CNC porting
Intake manifold: / cast aluminum / custom fabricated barrel valve
Exhaust manifolds: / cast stainless steel / tubular stainless steel
Compression ratio: / 9.2:1 / 9.7:1
Valve train: / dual overhead cam; four valves per cylinder / dual overhead cam with performance grind; four race valves per cylinder
Valve lifters: / hydraulic lash adjuster, roller finger follower / mechanical lash adjuster, roller finger follower
Firing order: / 1-3-4-2 / 1-3-4-2
Fuel system: / Gasoline high-pressure, variable-rail pressure, spark ignition direct injection / MSD coil near plug ignition, FAST engine control system with custom fuel map
Horsepower: / 260hp @ 5300 rpm / 550 HP @ 7800 rpm est.
Torque: / 260 lb-ft. @ 2000 – 5300 rpm / 450 lb-ft @ 6800 rpm est.
Fuel shut off: / 6300 rpm / 8800 rpm
Crankshaft: / forged steel / billet steel
Connecting rods: / forged steel / billet steel
Induction: / air-to-air intercooled dual-scroll turbocharger system / water-to-air intercooled precision ball-bearing turbo with waste gate
Fuel: / Premium recommended (not required) / E85
Fuel tank: / 13.6 gal. / 8 gal. fuel cell
Engine oil: / Mobile 1 synthetic, 5qt. / Mobile 1 synthetic, 8qt.