Fuel Injection Kit

20-0428 Port Injection Kit, Honda K20C1. The fuel rail features four threaded ports that are all tapped for 8AN ORB. If building a custom fuel setup, appropriate fittings must be selected based on the specific application. Ample space around the fuel rail port(s) is necessary for larger accessories such as fuel pressure regulators, fuel pressure gauges, and fuel pulse dampers. To verify clearance, the dimensional drawings can be used as a reference guide. The Radium Engineering Port Injection Kit (PIK) installs between the intake manifold and the cylinder head. It permits the use of port injectors to add additional fuel on high-horsepower K20C1 engines. This does NOT replace the OEM direct injection system. The kit includes the PIK adapter plate, custom fuel rail, fuel rail mounting hardware, and OEM Honda gaskets, as shown in the below picture. It is compatible with all fuel types including popular alcohol mixtures such as E85. The fuel rail features a large 0.63 internal diameter bore. It is CNC machined from extruded 6063 aluminum and laser etched for a high quality surface finish. All 4 ports are machined with 8AN ORB (3/4-16 female) threads. Note that the 2 top fuel rail ports will need to be plugged with 8AN ORB unless the plastic OEM wiring harness carrier is modified. Insulating mounting spacers and washers are included to completely isolate the fuel rail from heat created by the cylinder head and transferred through the mounting bolts. The injectors are at a specific angle to ensure proper spray into the intake ports. This kit is designed for specific top feed fuel injectors with upper and lower O-ring spacing. The upper and lower injector O-rings must be 14mm diameter. The included fuel rail mounting brackets permit 2 different height fuel injectors to be used. Fuel injectors, port fittings, fuel hose, wiring, injector controller, etc. Are NOT included and must be sourced elsewhere. Because the PIK will space the intake manifold off the head, a custom throttle body pipe will need to be fabricated. Alternatively, an offset silicone coupler can be used with the OEM throttle body pipe. Please inspect items immediately when received. Items you wish to return MUST be approved prior to your return. All return inquires must be sent to us within 5 days of receiving your order. Order Status & Availability. We will obtain your approval if you wish to keep an item on backorder or if you wish to cancel your order. If the item is coming back in stock within two weeks, we’ll ask if you want to keep it on order. If you have a preference, I may consider it but please message me first. All items (except those exempted) are intended for off road use only, may never be used on public roads and highways.