EW10J4S injectors in EW10J4

[SydenhamHunter]

Recently got my hands on a Peugeot 206 GTi 140, and was wondering if it was possible to but the higher flow EW10J4S injectors into the EW10J4 for a possible minor power increase.
Can see it giving me a check engine light but would it work?

 

[Matthew]

Short answer no, the closed loop management will only inject as much fuel as required to meet stoichiometric and as such they will open for less time (if they are bigger).

 

[SydenhamHunter]

Short answer no, the closed loop management will only inject as much fuel as required to meet stoichiometric and as such they will open for less time (if they are bigger).

Injectors only match the airflow of an engine, bigger ones are of no use unless you improve the efficiency of the engine and re-map the ECU.

Can the stock ecu be remapped by a tuner?

 

[GRAHAM WALLIS]

Can the stock ecu be remapped by a tuner?

No point, it would be optimum already. As stated above you need to increase air flow into the engine by cams, valves, turbo etc. or increase the compression which is already pretty high..