What's the difference?

[dieselboy04']

What's the main difference between an LLY cp3 and a LBZ cp3? I know the LBZ flows more but I wanna know what parts are different in them other than FPR.

Reason for asking is I have an LBZ with arson II upgrade and apparently the pump was junk before I upgraded it. When commanding full psi at idle I can only make 23,000 psi. I feel this is the source of all my frustration. Hell the stock lly pump I took out for being weak was hitting 24,000 psi.

So this leads me to my other question. I have a new lly pump. Can I swap out my arson II in the new lly pump? I'm already retuned for the Lbz FPR.


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[x MadMAX DIESEL]

That cp3 is junk or an injector. It should hold more, theres no flow when commanding at idle

 

[dieselboy04']

Balence rates all checked out. I guess it's time to do a return rate test. Any good ways to do that without buying the tool with the graduated cylinders?


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[dieselboy04']

Anybody know about internal parts on the cp3?


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[ikeG]

I believe lbz pumps have a longer stroke.