What should HPOP pressure be?

[Duanesz]

I put my scanguage in my truck today and set the x-gauge up and HPOP pressure is at idle 500psi and wot it sees 2800psi. The gauge only checks every 2 seconds or so so its not like you can see the whole movement. But its holding 2800psi at 14lbs boost.

[CT Performance, Inc.]

Fine, thats what would be expected

[Deputydog]

Yep, Like Cary said, thats about right.

[Duanesz]

Will the hpop pressure fall when you run a different tune. This reading was stock. I did not see what the duty cycle was either. What should the duty cycle be?

[CT Performance, Inc.]

Under 40% I would think for yours...Whats the problem???

[Duanesz]

Well seems to not tow well kind of lack of power. I loaded the 60hp tune today and I could only hold 2400psi. I called beans and they want me to check what the duty cycle is and pressure. So I am going to check this out tomorrow.

[zpd307]

does anyone know what the acceptable range of pressures is for the hpop, at idle midrange and wot?

[harley1rocker]

600 and above i beleive

[TerminatorEngineering.com]

Originally Posted by Duanesz

I put my scanguage in my truck today and set the x-gauge up and HPOP pressure is at idle 500psi and wot it sees 2800psi. The gauge only checks every 2 seconds or so so its not like you can see the whole movement. But its holding 2800psi at 14lbs boost.

Every two seconds? That's awfully slow.

The higher the HP program(longer injector pulse width), the more you will see your max psi drop.