Description
FA20 HKS Fuel Upgrade Kit – larger Injectors – 14007-AT001
Improving the tuning level such as upgrading the turbine usually requires replacing injectors with larger capacity injectors. HKS provides 2-Jet type Injector Upgrades designed for specific engines and various types of injectors for stable fuel delivery needed on high-performance applications.


【2-Jet TYPE INJECTOR UPGRADE】
HKS original 2-Jet type Injector Upgrades were designed specifically for certain engines; therefore, installation is very simple. For higher combustion efficiency, this injector was designed to inject fuel toward the valve head with better fuel atomization.
- Injection toward Valve Head
- Injection direction was carefully adjusted toward the valve head; therefore, the A/F response delay due to inefficient injection can be improved.
- Better Fuel Atomization
- As the injection range gets wider, the atomized particle size becomes smaller; therefore, combustion efficiency can be improved with less black smoke. Also, the fuel atomization improvement can lead better low-temperature startability and A/F response which improve the torque.
HKS 2-Jet type Injector

Injection toward the valve head and better fuel atomization ensure efficient fuel vaporization.
Other 2-hole Injector

Fuel vaporisation properties are clearly worse than HKS 2-Jet type injectors. Fuel which was not vaporised correctly can flow into the port and cause knocking.


【INJECTOR UPGRADE】
HKS’ large capacity injectors are precision units engineered to deliver the fuel needed on high-performance applications.
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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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