staarma

I'm no expert at all I just know my truck. Without the EZ on my truck my rail still stays above 20k. I think volume plays a bigger role than pressure does. I have a big line and fitting kit since I did the FASS a couple years ago. I think that helps a bunch. I do think more pressure from the supply side will help mask a trailing CP3 though for sure.

Diesel-Dan

These pressures are just fine. Its actually 6-7 PSI higher than what they call for stock (8 PSI). We set the pressure up to the VP-44 spec because for:

one, it easier than to change it for every application

two, it wont hurt a thing.

Showing you have pressure under WOT means that the FASS is supplying more fuel than the CP3 can use. If the CP3 was using all the FASS could supply, you would have 0 PSI or a vacuum situation. This is not the case. AND if you want to look at in the case of flow, the lower pressure noted, the more flow our pumps put out (OR diverts from return to the CP3 pressure feed line). It’s inversely related. Remember the 150 GPH and 95 GPH pumps are rated at 0 PSI.

SO a slight pressure drop is normal under WOT due to the pump using more fuel and removing restriction on the feed line.

My personal kit runs at 13.5-14 PSI and WOT it pulls down to 11.5-12 PSI.

I dont see anything out of the normal with your kit.......

goodeyesniper75

thank you for makin me feel better dan