SPEC SHEET
| VEHICLE | |
|---|---|
| Year / Make / Model: | 2005 Subaru WRX STi |
| Chassis Code: | GDB |
| Competition Class: | IDRC True Street |
| Vehicle Weight: | 3,300 lbs. |
| Weight Bias (F/R): | 60/40 |
| Launch RPM: | 6,000 RPM |
| Shift RPM: | 8,400 RPM |
| Redline RPM: | 8,600 RPM |
| Peak Boost: | 30 psi |
| Fuel: | E85 |
| ENGINE | |
|---|---|
| Engine Code: | EJ257 |
| Displacement (cc): | 2,469.5 cc |
| Bore & Stroke (mm): | 99.75mm x 79mm |
| Peak Horsepower (@ RPM): | 681.31 WHP @ 6,750 RPM |
| Peak Torque (@ RPM): | 529.38 lb-ft @ 6,750 RPM |
| Dyno Type: | Dynojet 424xLC2 |
| Engine Builder: | Jeff Chang |
| Block Modifications: | Outfront v3 Closed Deck Inserts |
| Machine Work: | Bore/Hone .010in |
| Pistons/Compression Ratio: | Manley 8.5:1 Platinum Series w/HD Pins |
| Connecting Rods / Crank: | Manley Turbo Tuff Rods & Billet Crank, Fluidampr Balancer |
| Camshafts: | GSC S3 Cams |
| Valves/Springs/Retainers: | Manley +1mm Valves, Springs, Retainers, Locks |
| Cylinder Head Modifications: | Custom Self-Engineerd Multi-Angle Valve Job, Full Race Self P&P Heads |
| Cylinder Head Gasket: | JE Pro Seal |
| Head/Main Studs: | ARP L19 (11mm) |
| Intake Manifold / Throttle Body: | Cosworth Manifold, Boomba Racing 75mm Throttle Body, DBW |
| Fuel Injectors: | Fuel Injector Clinic 2,150cc (x4) |
| Fuel Delivery System: | AEM Twin In-Tank Pumps; Out-front Fuel Rails |
| Engine Management System: | AEM Series 2 EMS |
| Engine Management Tuner: | Jeff Chang |
| Boost Controller: | AEM |
| Spark Plugs: | Brisk Racing Silver Plugs |
| Exhaust Manifold: | FobiaFab Forward Facing Fog Light Turbo Kit |
| Exhaust System / Downpipe: | APM Aluminum Cat-back, Jeff Chang Fabricated Downpipe |
| Wastegate: | TiAL Sport 38mm Wastegates (x2) |
| Blow-Off Valve: | TiAL Sport 50mm |
| Intercooler: | Perrin w/Custom Reverse Piping |
| Cooling System: | PWR Aluminum Radiator |
| Oil System: | Killer-B Pickup, Baffle, & Pan |
| Performance Electronics: | AEM 4-Channel Wideband with EGB, 4-Channel EGT, 5 Bar MAP, Oil & Fuel Pressure |
| TURBOCHARGER | |
|---|---|
| Turbocharger: | Precision Turbo & Engine |
| Frame: | PT6466 |
| Compressor Wheel Specs: | 64mm |
| Turbine Wheel Speds: | 66mm, 76 Trim |
| Turbine Housing | T4 Divided 1.15 A/R |
| CHASSIS/DRIVELINE | |
|---|---|
| Springs, F&R (Make & Rate): | AMR Custom Coilovers 650 lbf/in & 500lbf/in |
| Shocks, F&R (Make & Rate): | AMR Custom Valved Coilovers |
| Additional Suspension Components: | Turn In Concepts Complete Bushings, TSSFab Chromoly Rear Subframe, Adjustable Lateral Links, XXXL Trailing Arms and Chromoly T-Bar Mount |
| Transmission: | Factory 6 Speed |
| Transmission Gearing: | Turn In Concepts ’07 2nd-4th Long Gears |
| Final Drive: | 3.90:1 |
| Clutch / Flywheel: | Competition Clutch Twin Disc |
| Differential(s) (Make & Type): | Factory R180 |
| Axles/Driveshaft: | InsaneShafts 1000hp Axles PST Carbon-fiber Drive Shaft |
| Wheels (Make, Size & Offset): | Enkei NT03+M 18×9.5-inch +27 (F) Rota 16×8-inch +40 (R) |
| Tires (Make & Size): | Federal 235/40R18; Hoosier QTP 26×9.5×16 |
| Brake Calipers (F&R): | Subaru 4-Pots / Stock Brembos |
| Brake Rotors (Diameter, F&R): | DBA Stock Replacement |
| Brake Pads (Front & Rear): | Stoptech Pads |
| Brake Lines: | Goodridge Stainless-steel Braided |
| Etc.: | Map DCCD Controller |
| INTERIOR | |
|---|---|
| Roll Bar / Cage: | 10-Point NHRA Certified Chromoly Roll Cage |
| Seats: | Kirkey Aluminum Seats |
| Harnesses: | RJS 5-Point Harnesses |
| Gauges: | Innovate Boost & Wideband; STRI Oil/Fuel Pressure |
| Etc.: | AEM GaugeART Display |
| EXTERIOR | |
|---|---|
| Front Lip Spoiler: | Poly Lip |
| Hood: | Stock w/KSTech Scoop Delete |
| Custom Body Work: | VinylDisorder.com Sponsor Decals |