Fuel pressure is up after pump install.

[ga94gt]

I noticed that my fuel pressure jumped up 4 psi to 36 and i just installed a 255lph pump. I know that 36 psi is fine but i was just wondering if that was normal?

 

[Paul]

36 psi with vacuum on or off?

 

[ga94gt]

on

 

[Paul]

Do you have an adjustable fuel pressure regulator? Stock fuel pressure is 39 with the vaccuum disconnected if memory serves me correctly. Do you have it regulated down as part of your combination.

Paul.

 

[ryclef331]

Yes it is normal going to a NEW and stronger pump with out changing anything. You increased the flow to the regulator so the orifice to the return need to open more to bring the pressure back down. Its normal and it probably fine.

(BEFORE ANYONE ARGUES WITH ME, YES I KNOW THE DIFFERENCE BETWEEN FLOW AND PRESSURE)

 

[ga94gt]

Yes it is normal going to a NEW and stronger pump with out changing anything. You increased the flow to the regulator so the orifice to the return need to open more to bring the pressure back down. Its normal and it probably fine.

(BEFORE ANYONE ARGUES WITH ME, YES I KNOW THE DIFFERENCE BETWEEN FLOW AND PRESSURE)

Thanks Ryclef.