Description
Impreza GDB GRB HKS Fuel Upgrade Kit 650cc Injectors + Pump 14007-AF003
Taper shaped injector improved atomization performance. The in-tank fuel pump’s capacity can be increased without modification.
Large capacity injector and fuel pump in one fuel upgrade package.
【Features】
- Designed with the latest generation BOSCH Top Feed type fuel injector. All injectors have been passed the spray test and similar performance injectors are picked up and packaged in one kit for each car.
- Improved injector performance results in a shorter injector dead time. (1350μsec => 900μsec at Voltage 14V and Fuel Pressure 300kPa)
- O-rings(2-pieces) and spacer(back-up ring) have been added to the fuel line connector for improving sealing.
- Stock harness connector converter is included.
- Includes same fuel pump in our previous fuel upgrade kit. Replacing connector and small modification of fuel case are necessary when installing to GRB/GVB. (same as previous kit)
Sealing of fuel line connector was improved
【Performance】
Comparison of fuel pressure and injector capacity (capacity is a calculated value)
| Fuel Pressure (kPa) | 250 | 300 | 350 | 400 |
| Capacity (ml/min) | 595 | 650 | 700 | 750 |
Comparison of fuel pressure and injector volume (volume is not guaranteed)
| Fuel Pressure (kPa) | 300 | 350 | 400 | 450 | 500 | |
| Volume (L/h) | 12(V) | 210 | 195 | 180 | 165 | 150 |
| 14(V) | 260 | 245 | 230 | 215 | 200 | |
Comparison of voltage and injector dead volume (300kPa)
| Voltage (V) | 8 | 10 | 12 | 14 | 16 |
| Injector Dead Time (μ sec) | 2290 | 1560 | 1150 | 900 | 730 |
【Attention】
- Injector nozzle is conical type (1spray) which is different from our previous 2-Jet type products. Please do not use the same fuel setting data due to the difference of injector dead time and fuel injection condition.
| Vehicle | Model | Engine | Model Year | Outer diameter | Length (mm) | HKS pump (L/h) | Normal pump (L/h) | HKS injector | Normal injector | Code No. | Price | Remarks |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| IMPREZA | GDB | EJ20 | 00/10-07/06 | 14007-AF003 |
In October 1973, two talented and spirited young engineers had a vision; to design and build high performance engines and components that major OE manufacturers could not or would not produce.
Led by Hiroyuki Hasegawa, a former engineer for Yamaha Motor Company, and his partner Goichi Kitagawa, the two secured a capital infusion from Sigma Automotive Co., Ltd. (hence the name “HKS ”), and began tuning gasoline powered engines in a dairy-farming shed at the foot of Mount Fuji in Japan. A year later, Mr. Hasegawa designed and built the first aftermarket turbocharger for passenger cars and has never looked back.
HKS pioneered the Japanese aftermarket performance industry by delivering a host of exciting new products, including the first commercially available electronic turbo timer and boost controller. Other early products included piggy-back fuel computers and sophisticated fuel management tools. Clearly HKS was Driving Performance trends for Japanese vehicles.
Since its beginning, HKS has been committed to providing well-integrated, reliable, and environmentally sound performance systems. Mr. Hasegawa’s strong leadership, engineering genius, creativity and willingness to listen to customers are the pillars of the company’s success. Monitoring consumer reaction and input on issues pertaining to material quality, external appearance, sound quality, and of course, performance, HKS stays in tune with automotive enthusiasts’ needs. Moreover, HKS’ products are designed to be user friendly for easy installation.
Today the automotive aftermarket industry is filled with start-up companies following in HKS’ footsteps. None however, can match the depth of engineering or manufacturing resources available to the talented, highly motivated and dedicated employees of HKS.
For over 40 years, HKS products have been put to the test in drag racing, road racing, rallying, and top speed trials. HKS equipped vehicles have captured numerous racing championships and hold claim to a myriad of competition records using many “off the shelf”, race proven HKS components. As a result, HKS has been synonymous with “performance” in the automotive aftermarket industry for the past 40+years.
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