Hi , first srry all mine english im still learning Ty .

Im looking for know if got any other Oil Pump for replace the original from civic si 2011 , i need one whif more oil pressure becouse i go make one K20z3 all motor for pass them 11.000Rpm , some peaople say for use Type-R Oil Pump but the oil pump is diferent from original and i go need adapt . any can help me ?

 

Oil pump pressure can be raised by changing the spring that controls the check ball, a stiffer spring in the pump will increase the pressure.

I think running 11K rpm's you would be more concerned with volume, a high volume pump in my opinion would be way better than just high pressure.

I used a high volume pump in my 4.0 jeep plow before I put the melling high volume pump in I had 20 to 30lbs at idle after the pump was in it pegged the needle when cold and ran 60 lbs hot at idle.