A stock mechanical pump civic 1200 puts out 2.56 PSI max
The volumes are 27.45 CI. min. @ idle and 45.76 ci. min. @ 6000 RPMs engine speed. You need to look at the volume too.
David

By Jamie Lay (Boyracer) (166.61.238.10) on Friday, December 17, 2004 - 10:02 am:

Hey guys, my old Purolator inline fuel pump finally succumbed to rust...There are several replacements out there..What does the car require as far as pump pressure?..A 1.5-4 psi pump or 4-7 psi pump? Any idea how much the mechanical pump puts out?

Thanks
Jamie