GRB SPEC SHEET
| VEHICLE | |
|---|---|
| Year / Make / Model: | 2008 Subaru Impreza STI |
| Redline Time Attack Class: | Unlimited AWD |
| Vehicle Weight: | 2,800 lbs. |
| Weight Bias (F/R): | 60/40 |
| Shift RPM: | 8,000 RPM |
| Peak Boost: | 29 psi |
| Fuel: | VP Racing C16 Race Fuel |
| ENGINE | |
|---|---|
| Displacement (cc): | 2,644cc |
| Bore & Stroke (mm): | 99.5mm x 85mm |
| Peak Horsepower (@ RPM): | 530 whp @ 8,000 RPM |
| Peak Torque (@ RPM): | 580 lb-ft @ 4.200 RPM |
| Dyno Type: | DynaPack |
| Pistons/Compression Ratio: | JE Pistons 8.7:1 Compression |
| Forged Aluminum Pistons | |
| Connecting Rods / Crank: | Crawford Performance (Crawford) |
| Billet Steel Connecting Rods | |
| Crawford Billet Steel Stroker Crankshaft | |
| Valves / Springs / Retainers: | Crawford Stainless-steel Valves |
| Crawford Dual Valve Springs | |
| Crawford Titanium Retainers | |
| Cylinder Head Mods / Gasket: | Crawford Time Attack-spec |
| Cylinder Head (Port and Polish) | |
| Factory Head Gasket | |
| Head / Main Studs: | ARP Head Studs |
| Fuel Injectors: | Denso 740 cc/min Injectors (x4) |
| Fuel Delivery System: | Walbro 255-lph In-tank Fuel Pump |
| Crawford Fuel Surge Tank | |
| Engine Management System: | MoTeC M800 Plug & Play |
| Spark Plugs: | NGK 7 |
| Turbocharger: | Garrett GT35R Rotated-Mount |
| Frame: | T3 |
| Compressor Wheel Specs: | 61.4mm Inducer, 82mm Exducer |
| Turbine Wheel Specs: | 68mm |
| Turbine Housing: | .82 A/R |
| Wastegate: | TiAL Sport 44mm Wastegate |
| Exhaust System / Downpipe: | Crawford Stainless-steel Downpipe & Exhaust |
| Intercooler: | Crawford Front-mount Intercooler |
| Cooling System: | Crawford Custom Radiator |
| Custom Aluminum Coolant Lines | |
| and Wiggins Clamps | |
| Oil System: | Crawford Oil Cooler |
| Crawford Air / Oil Separator |
| CHASSIS/DRIVELINE | |
|---|---|
| Springs, F&R (Make & Rate): | TEIN 16 kgfmm (F), 14 kgf/mm (R) |
| Shocks, F&R (Make & Rate): | TEIN Super Racing Adjustable Dampers (F&R) |
| Additional Suspension Components: | Cusco Sway Bars |
| Crawford Front Hubs | |
| Crawford Adjustable Rear Links | |
| Transmission: | KAPS 6-speed Sequential Dog Box |
| Final Drive: | 3.90:1 |
| Clutch / Flywheel: | Exedy Triple-Carbon Clutch |
| Exedy Lightened Flywheel | |
| Differential Type: | Cusco 1.5 way Limited-Slip Differential |
| Axles / Driveshaft: | Driveshaft Shop axles |
| Wheels (Make, Size & Offset): | Volk Racing CE28N 18×9.5-inch (F&R) |
| Tires (Make & Size): | Hankook Ventus 275/35R18 |
| C51 compound | |
| Brakes (F&R): | Brembo Gran Turismo Big Brake Kit (F) |
| Etc.: | Motul Brake Fluid |
| Subaru Performance Tuning Parts |
| INTERIOR | |
|---|---|
| Roll Bar / Cage: | Crawford 4130-Cromoly 6-point Cage |
| Seats: | Recaro Carbon0Kevlar Race Buckets |
| Harnesses: | Sparco 6-point Harnesses |
| Gauges: | MoTeC Gauge Panel |
| EXTERIOR | |
|---|---|
| Front Lip Spoiler, Carbon-fiber Hood and Spoiler, Paint and Custom Body Work: | Crawford |
| Tuning Grill: | Subaru Performance |
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