what psi does the stock cp3 put out? what is the average fuel pressure in 24 vavle common rail? i know every truck is different but im just looking for average numbers....also i am planning on putting together my own fuel system and am curious as to the difference in running a walbro pump and a holley pump or any other brand fuel pump? i think the holley is more common so that is what i was thinking of using. any other tips or pointers for me??? how much psi should the pump be running ?

 

The stock cp3 puts out about 5800 at idle.
The stock intank pump puts out about 8 psi at idle. ( corrected)
The Holley is about 12 to 15 psi.
The Walbro needs a BYPASS pressure regulator.

 

so if i ran the holley i wouldnt need a bypass pressure regulator

 

Most people are seeing what I'm seeing, 8 psi from the factory in tank pump.

 

wow 15 psi... you wouldn't need much of an aftermarket fuel system then....

Yep 8 psi nothing more....

 

My stock lift pump was also 8-9lbs and would drop a few lbs on WOT.

 

same here 8 lbs at idle and a few times at WOT 2 lbs then upgraded.