SPEC SHEET
VEHICLE | |
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Year / Make / Model: | 2007 Subaru Impreza STi |
Chassis Code: | GDB |
Shift RPM: | 8,500 RPM |
Redline RPM: | 8,500 RPM |
Peak Boost: | 27 psi |
Fuel: | 93 Octane / VP Racing Q16 |
ENGINE | |
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Engine Code: | EJ257 |
Displacement (cc): | 2,457cc |
Bore & Stroke (mm): | 99.5mm x 79mm |
Peak Horsepower (@ RPM): | 642.1 whp @ 7,000 RPM |
Peak Torque (@ RPM): | 481.9 lb-ft @ 7,000 RPM |
Dyno Type: | Land and Sea Dynomite Dynamometer |
Engine Builder: | Phil Grabow |
Machine Work: | Honed Cylinders |
Pistons/Compression Ratio: | Cosworth 8.5:1 Compression Pistons |
Connecting Rods / Crank: | Cosworth Forged Connecting Rods |
Camshafts: | Cosworth S2 High lift camshafts – KK3766 |
Valves / Springs / Retainers: | Cosworth Dual Valve Springs, +1mm Stainless- |
steel Intake Valves, Titanium Retainers | |
Cylinder Head Modifications: | Cosworth CNC-Ported Cylinder Heads |
Cylinder Head Gasket: | Cosworth Head Gaskets |
Intake Manifold / Throttle Body: | Cosworth Intake Manifold (Rotated) |
Head / Main Studs: | Cosworth H11 Tool Steel Head Studs |
Air Induction System: | Perrin Big MAF Intake |
K&N Cone Filter | |
Fuel Injectors: | Bosch EV1 1,600 cc/min Injectors (x4) |
Fuel Delivery System: | Walbro GSS 342 Fuel Pumps (x2) |
Full Blown Dual In-Tank Fuel Pump Hanger | |
Aeromotive Eliminator Fuel Pump, Top-feed fuel | |
rails, adjustable fuel pressure regulator | |
Engine Management System: | Hydra 2.6 ECU |
Engine Management Tuner: | Phil Grabow |
Boost Controller: | Turbosmart E-Boost Controller |
Exhaust Manifold: | GTSPEC Manifold, Rotated V-band Up pipe |
Exhaust System / Downpipe: | Element Tuning 3-inch Cat-back Exhaust |
Wastegate: | TiAL Sport 44mm Wastegate |
Blow-Off Valve: | TiAL Sport Blow Off Valve |
Intercooler: | Precision Turbo & Engine FMIC |
Cooling System: | Visteon Radiator with dual shrouded fans |
Oil System: Process West Oil Cooler Kit | |
Performance Electronics: | Blitz FATT Turbo Timer |
HKS FT-3 Turbo Timer Harness | |
Orange Electric TPMS | |
Pioneer AVIC D2 With Navigation | |
& Back Up Camera |
TURBOCHARGER | |
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Turbocharger: | Element Tuning GT75 |
Frame: | GT35R |
Compressor Wheel Specs: | 82mm Major, 61.4mm Inducer |
Turbine Wheel Specs: | 68mm Major |
Turbine Housing: | TiAL Sport 1.03 A/R V-band Housing |
CHASSIS/DRIVELINE | |
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Springs, F&R (Make & Rate): | TEIN 9 kgf/mm & 6 kgf/mm Springs |
Shocks, F&R (Make & Rate): | TEIN Flex Adjustable Dampers |
Additional Suspension Components: | TEIN EDFC Controller |
Cusco Aluminum Front & Rear Strut Tower Bars | |
Kartboy Front & Rear End links | |
Cobb Tuning Adjustable Sway-Bar Mounts | |
GTSPEC 3-Piece Sub-frame Kit | |
GTSPEC Differential Mount Tie Brace | |
Clutch / Flywheel: | Exedy Triple-Disc Cerametallic Clutch |
Axles / Driveshaft: | DSS 1000 HP Level 5 Axle/Hub Kit |
ACPT Carbon Fiber Driveshaft | |
Wheels (Make, Size & Offset): | SSR Type F Wheels 18×9.5-inch (F&R) |
Tires (Make & Size): | Dunlop Direzzas 265/35R18 (F&R) |
Brake Calipers (F&R): | Brembo |
Brake Rotors (Diameter, F&R): | DBA 5000 Series 2-piece Rotors (F) |
DBA 4000 Series Rotors (R) | |
Brake Pads (Front & Rear): | Hawk HPS |
Brake Lines: | Goodridge Stainless-steel Braided Lines |
INTERIOR | |
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Roll Bar / Cage: | AutoPower Roll bar |
Seats: | Corbeau CR1 Micro-suede Seats |
Harnesses: | Takata 4-point Harnesses |
Gauges: | DEFI Center Gauge Pod, DEFI BF Series Amber EGT |
Fuel Pressure, Oil Temp & Pressure, Water Temp, | |
Boost |
EXTERIOR | |
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Bumpers (Front & Rear): | Chargespeed Type-2 |
Hood: | Seibon Carbon fiber with vents, Sparco pins |
Rear Diffuser: | Chargespeed Carbon-fiber |
Etc: | Roof Spoiler |