Description
HKS Fuel Upgrade Kit (Top Feed / 750cc)
Product Overview: HKS Fuel Upgrade Kit (Top Feed / 750cc) is a fuel-system component intended to support reliable fuel delivery for the engine's required airflow and power level. This listing is structured around the exact HKS product/SKU so shoppers can match the component to the intended vehicle or build without relying on a generic product-family description.
Vehicle Application: 2000-2005 Honda S2000 (AP1/AP2)
Driver Benefit: Correctly sized fuel-system hardware helps maintain consistent fueling under load and provides headroom for calibrated performance increases.
Recommended Use: Best suited to modified engines where fuel demand exceeds or approaches the capability of the original system; professional calibration is generally required.
Technical & Fitment Notes
- Use the HKS part number/SKU as the primary reference when confirming exact configuration and installation requirements.
- Professional installation is recommended when the component affects engine operation, suspension geometry, braking, fuel delivery, or other safety-critical systems.
- Original catalog note: Fuel Upgrade Kit containing high-capacity injectors, fuel pump, and restrictor for Honda S2000 with GT Supercharger. Features: - 6 jet injection hole. - Improved injector performance has increased the output volume, while shorting the invalid injection time compared to the previous 650 cc (yellow) type. (Voltage 14V and Fuel pressure 300 kPa Former 650 cc: 1350 mu sec >>> New 750 cc: 1030 mu sec). - No modifications are required for installation. The factory wiring harness can be used without modification. - O-rings (2-piece) and spacer (backup ring) have been included to the fuel line connector for improved sealing. - All injectors are tested. 4 injectors with similar performance are combined into one kit for one vehicle. - Fuel Upgrade Kit for AP1, which includes a dia.44 restrictor for GT Supercharger and GT2 Supercharger and a large capacity fuel pump (at 260 I/h 300 kPa). C
Fitment and specifications can vary by HKS part number, model year, trim, transmission, drivetrain, and market. Confirm the SKU and application before ordering, particularly on modified vehicles.