Product Description
- 2002-2005 WRX
- 2006-2007 WRX
- 2008-2014 WRX
- 2007 STi
- 2008-2014 STi
- Brand: HKS
- Manufacturer's Part Number: 14007-AF002
- UPC: 816532020795
- Condition: New Product
FITMENTS:
Subaru
| Manufacturer's Description: FUEL UPGRADE KIT 800/650cc for SUBARU IMPREZA Large capacity injector and fuel pump set that are required to increase horsepower. * ECU resetting is required to change injector or fuel pressure. • Application Injector (Top feed, high impedance, compatible with short (55mm)type) EJ207 GRB (blue)/GDB (pink) EJ255 BM,BR (green)/BL, BP (blue) EJ257 GRF (blue) Fuel pump GRB, GRF, GDB (BM, BR/BL, BP not tested) • Performance Capacity of stock injector of Impreza is for up to around 350PS. (The same limitation as stock turbine.) Supply volume from fuel pump will decrease at high boost level. Therefore, upgrading of fuel parts is required to replace with a big turbine. Injector (HKS vs stock) Fuel pump (HKS vs stock) (left HKS; right no modification) Injection Injector simple Components Injector X 4 Injector O-ring X 4 Injector Flat washer X 8 Fuel pump X 1 Pump coupler X 1 Pump terminal X 2 • Injector • Features (Concept) • Enough capacity for a big turbine. • With insulators on both ends of injector, no modification is required for installation. • Injection direction towards intake valve. - As a result, response of air / fuel ratio will improve because of less volume of fuel for cylinder from surface of port. Performance Comparison of injector volume and horsepower GRB stock 650cc (yellow) 800cc (Purple) Code # 16611-AA720 14002-AF002 14002-AF001 Injector volume 525cc 650cc 800cc (Full injection capacity)* 570cc 730cc 850cc Max. horsepower 350 420 500 Number of injection hole 12 tapered 2 tapered 2 tapered Turbocharger Stock GT2835 GT3037 * Tested at 300kPa. Since there is injector dead time, values at about 90% are used for the names. • Fuel pump • Compatible with stock pump. It enables large capacity in tank type pump. • It works at high fuel pressure to prevent "fuel drop" at increased fuel pressure and high boost level. • As it is installed in stock pump case, fuel baffle function of stock system can work. Performance comparison of supply capacity and horsepower GRB stock HKS Injector volume @300kPa 190L/h 250L/h @500kPa 125L/h 190L/h Max. horsepower * 350PS 500PS Size 38mm L=114 * When calculation fuel pressure is decreased, supply volume will increase and calculated horsepower will be increased. Remarks for installation • Small modification inside stock pump case is required. • Replacement of connectors for wires of pump is required. |
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