more power with nozzle injecteur?

[santou]

hi, i want have more power on my 1.9td(psa)
 i read, for give this, i most have a bigger injector and plunger.
 
what type of nozzle injector, must i got for this? dnosd 313 ??
(original type is: dnosd 299 to 175bars.)

i have got an 10mm plunger, it could change for an 11mm.

objective: 140/150hp  with k24 or gt20 charger.
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