Holley EFI 504cc fuel injector for tuning, turbo engines and motorsport applications where higher fuel capacity is required than with standard injectors. The injector is suitable for setups with turbochargers, increased air mass, higher boost pressure or aftermarket engine management.
This injector has a flow capacity of 504cc and, at 3 bar fuel pressure, can be calculated for up to approximately 66 horsepower per injector on petrol. The figures are indicative and based on turbo engines with approximately 90% duty cycle.
It is often used for VAG 1.8T engines where higher performance is required than with smaller 441cc injectors. It can be relevant for setups around approximately 350-400 horsepower, depending on turbo, engine management, duty cycle, fuel pressure and the rest of the fuel system.
The injector has a Bosch/Amp-style connector, high impedance and is supplied with O-rings. It fits setups where dimensions, connector type and injector flow match the engine’s requirements.
Specifications:
Product: Holley EFI fuel injector
Type: High impedance fuel injector
Flow: 48 lbs/hr
Resistance: 11-13 ohm
Connector type: Bosch/Amp-style
O-rings included: Yes
Calculated petrol output: Up to 66 hp per injector
Calculated 8-cylinder petrol output: Up to 528 hp
Calculated E85 output: Up to 58 hp per injector
Calculated 8-cylinder E85 output: Up to 464 hp
