Giant-Time Killer Time Attack Subaru STi

[SOURCE:- Air Power Systems APS]

This is the giant-killer time attack car said in the articles of Subaru STI Performances reviewed by APS High output system. This beast is owned by Richard Garcia's team.

Dyno-Comp Engineering team, selected a range of products to deliver truly reliable outstanding engine output in high performance. It produces HIGH Horsepower track car, based on the information given, This STI is equipped with 0.82 A/R Ratio APS Rotated Mount TSR70 Turbocharger.

Summary of the STI

• 2006 Subaru STI
• Vehicle Weight: 2780 lb
• Weight Bias (F/R): 60/40

• Launch RPM: 5000
• Shift RPM: 8300

• Engine Code: Cosworth EJ25 Long Block CS600X
• Displacement (cc): 2457cc
• Bore & Stroke (mm): 99.5mm bore, 79mm stroke
• Peak Horsepower (@RPM): 504 WHP @ 7300 RPM (Dyno Dynamics)
• Peak Torque (@RPM): 450 WTQ @ 5000 RPM (Dyno Dynamics)
• Compression Ratio: 8.2:1

• Cosworth H-Beam connecting rods
• Cosworth Billet crank

• CNC ported heads, full top and bottom end machined and blueprinted and built at Cosworth.
• Cosworth S2 Camshafts:
  • Intake camshaft duration "278" deg.
  • Intake camshaft lift 10.7mm
  • Exhaust camshaft duration "274" deg.
  • Exhaust camshaft lift 10.0mm
• Cosworth High RPM Vale Springs
• Cosworth Titanium retainers
• Hand blended finish work
  • Intake 14.63% (average) 22% (max) increased flow
  • Exhaust 30.56%(average) 41% (max) increased flow
• 4-angle Inlet Valve job
• 3-angle & radius Exhaust Valve job
• Back-Cut Inlet Valves
• Heads are Ultra Sonic cleaned prior to assembly
• Heads are Serialized and sport a machined Cosworth logo
• +1mm Stainless Steel Intake Valves (1800 degrees max.)
• +1mm Inconel Exhaust Valves (2400 degrees max.)
• Performance Valve Springs
• Hardened Steel Spring Platforms
• Knife edged ports

• ARP 11.0 mm Head Studs
• APS 80 mm Cold Air Intake
• Extrude Honed Intake manifold with port matched TGV’s
• Stock Throttle Body
• APS Fuel Rails
• 8AN fuel lines with surge tank
• Power Enterprises 850cc

• ECUtek Tuned on the factory ECU
• Dyno-Comp tuned in house on AWD Dyno
• APEXi AVCR
• Factory Ignition Coils
• NGK Racing Competition (R7437-8)

• APS TSR70 Twin Scroll 0.82 A/R Ratio - rotated mount Turbocharger

• APS Equal Length Header – Twin Pulse for APS TSR70 0.82 A/R Ratio turbocharger

• Tial 44mm external wastegate

• APS Twin Vent Blow off Valve

• APS 3.5 downpipe
• APS 3.5" Exhaust System

• APS DR725 Intercooler System

• Dyno-Comp Custom 3.0” Core Aluminum Radiator
• Dyno-Comp Custom 10 AN Oil Cooler 14”x10”
• Moroso aluminum deep sump, baffled, 7-Qt capacity

• Gauges:
  • DEFI 60mm amber
  • Boost
  • EGT
  • Oil Pressure
  • Fuel Pressure
  • Oil Temp
  • Water Temp
  • Innovate LM1 wideband

We believed that the APS products are one of the good products that really have good impact and could improve engine performance in the world of modification, and believe it or not, this STI is only tuned by ECUTEK using the stock ECU. The rest of it, you be the judge :) enjoy reading the article guys