Performance and Accessories 2nd gen only Talk about Dodge/Cummins aftermarket products for second generation trucks here. Can include high-performance mods, or general accessories.

Factory lift pump making 19psi?

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Old 06-10-2013 | 07:47 PM
  #16  
RWDCelicadude's Avatar
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From: Benbrook, TX
You're saying that the line is too small and the fittings are restrictive, then you tell me that it doesn't matter where you're measuring pressure. If the fittings are restrictive then it definitely matters how many of them are in the line between the sender and the VP.
Then you repeat what I said, that the only time pressure will be reduced is when there is a lack of volume. I get this, I already said it earlier, it's not a point that needs to be argued.

Just so you know, I'm just messing with you at this point, it's all in fun. I've already removed all the stock stuff and have the airdog running straight to the VP with the sender mounted in line, using roughly 1.5' of soft line as a pulsation damper to isolate the sender. And my gauge reads exactly 1psi off from my rather expensive mechanical gauge that I installed in the same position just to test things.
Old 06-10-2013 | 09:23 PM
  #17  
KATOOM's Avatar
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From: The "real" Northern CA
Originally Posted by RWDCelicadude
You're saying that the line is too small and the fittings are restrictive, then you tell me that it doesn't matter where you're measuring pressure. If the fittings are restrictive then it definitely matters how many of them are in the line between the sender and the VP.
Then you repeat what I said, that the only time pressure will be reduced is when there is a lack of volume. I get this, I already said it earlier, it's not a point that needs to be argued.

Just so you know, I'm just messing with you at this point, it's all in fun. I've already removed all the stock stuff and have the airdog running straight to the VP with the sender mounted in line, using roughly 1.5' of soft line as a pulsation damper to isolate the sender. And my gauge reads exactly 1psi off from my rather expensive mechanical gauge that I installed in the same position just to test things.
Ummm..... So I'm talking to a wall?.....

But no, really to clarify what you think I'm saying, because maximum pressure doesn't change upon restrictions, it doesn't matter where you read FP from.....as long as its post fuel filter. If what I'm saying doesnt make sense then think of your house plumbing for an analogy. If all the angles and lengths of line affected "pressure" then you'd never get more then a dribble. But because those things only affect "volume", you still get water.

Back to my wall.....
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