what kind of fuel pressure?

jakethesnake · **Joined:** Mon Apr 05, 2010 8:22 pm **Posts:** 5

what kind of fuel pressure is ideal for these cp3's? i have seen the thread about the cummins lift pump an i think they should supply about 10-15 psi, just wondering if that is too much would a lower pressure be better for these cp3's
thanks in advance jake

geordi · **Posted:** Tue Jul 06, 2010 2:46 am

Less than 10 is what I have always seen here. The "Mr Gasket" style of inline pump puts out about 4-5 psi IIRC, and for about $40 is the best deal I've seen. I've had one outside my tank for more than a year now, running great.

warp2diesel · **Posted:** Tue Jul 06, 2010 8:34 pm

Check out the threads in the CRD Tech section, you have several choices that work.

wolcott · **Joined:** Thu Nov 10, 2005 4:16 pm **Posts:** 108

I have a Kennedy pump that works well. Pressure is about 3 to 6 psi.

Tinman · **Joined:** Mon Apr 10, 2006 10:45 am **Posts:** 308

I've never been explained the difference, but this CP3 is different than the Duramax and Cummins. I ran 20 psi in my CR Cummins for a while. And some of the highly moded CP3s for the trucks require 40 psi. This one won't do that. <10psi.

Joe Romas · **Posted:** Mon Jul 12, 2010 7:15 pm

Tinman wrote:

I've never been explained the difference, but this CP3 is different than the Duramax and Cummins. I ran 20 psi in my CR Cummins for a while. And some of the highly moded CP3s for the trucks require 40 psi. This one won't do that. <10psi.

The CP3 used in our CRD's has a built in primary gear pump on them :SOMBRERO:

what kind of fuel pressure?

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