Got a fuel log fitting from Jeg's put inline just before filter. It had an 1/8 NPT port for gauge so I put a 60 psi liquid filled gauge in that set it at 10 to 12 on Raptor regulator it stays there and runs like crazy. Must have worked it's holding it's own.
Lift pump psi?
- Thread starter JRODS*LB7
- Start date
PM on the way.
Could be the o-ring on the regulator plunger. Try pinching the return line and see if the pressure goes up.
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My truck runs over 1000RWHP with twins. If you have issues look at the plumbing. I brought a sepoarate feed and return up to the second CP3 and while I do see some pressure drop it is nothing to be concerned about as this is normal.
Not a fan of many electronic gauges OR pulling pressure from the bleeder screw. Always thoiught tis was a totally stupid place PLUS I have had more calls fom guys stating only 2 psi and scratching their heads. Not sure if this is a grounding issue, location, or POS Auto Meter issue, but it's recurring.
I have never had an issue holding rail pressure before, I never checked the pumps at idle until I started having issues, there are 2 brand new pumps under my truck now, all new push lok fittings and I am running your billet pick up, once its up and running again I will log it, I'm sure it won't be an issue never was before, just noticed that Airdog or FASS runs alot higher psi. Is 7psi at idle normal?
7 psi is fine. Add a 3rd to get 10+ etc but if you really need a ton of supply psi to maintain rail then you need more CP3.
If you want to blow your mind run these pumps with a big supply and discharge hose and watch the volume that they put out.
Push locks tend to restrict as does the OE filter assy and many other parts of the system. That's why I split my supply.
If you want to blow your mind run these pumps with a big supply and discharge hose and watch the volume that they put out.
Push locks tend to restrict as does the OE filter assy and many other parts of the system. That's why I split my supply.
Ok, I'll see how it is, like I said never had an issue before, went 12.65 with my stock turbo, I'd say if it were an issue it wouldn't go that well??
I have an electronic AutoMeter gauge installed at the fuel filter bleed screw, and I have no problems. I'd be interested in hearing your reason for thinking it is a stupid place to get pressure.
Whenever I get a complaint about low to no psi it's always being read here. The only thing I can think of is that there may be some sort of flow velocity issue afecting pressure.
Aside from that I just think it's foolish to put a sensor in a screw that you use and spin out to bleed the filter.
I went to the factory test port location, but anywhere after the filter housing is fine. The closer to the CP3 the better.
Could be a plugged filter causing the low readings. That's one reason I put mine there. Also, I put mine in in a T that splits off to a valve so I can open it up to bleed it without a screwdriver or anything if necessary.