Large injectors for PSA EP6CD N14 & N18 engines
The stock injectors for the N18 engines have a limit of approx. 290hp and will run the engine lean above this.
For higher power levels using big turbo kits upgrading to these bigger injectors is a necessary unless you use a meth injection which also has limitations of stretching any known fuel limit by a maximum of 10%
The stock HPFP (High pressure fuel pump) is capable of running fuel pressure to 9bar
These large injectors are capable of delivering enough fuel for approx 500-600hp.
ECU remapping is required so to rescale the injectors. As a guide only approx 21% duty is required for 350hp
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