We developed our low pressure fuel system out of necessity. We saw pressure drops in the low pressure fuel system at around the 600-650 hp mark. I think, just like everything else in this world, every truck is going to see a pressure drop at a different point. Some will see it at a higher point, some will see it at a lower point. It's just like rods- some people have had failures around 600 hp already. We saw the Breaking Point 6.7 make multiple dyno pulls over 700 hp with a peak of 884 uncorrected without a rod issue. Telling someone they don't need to worry about a low pressure pump because you have made over X amount of hp with a stock pump is like us telling someone they don't need rods up to 884 hp because we didn't see an issue at that point. Just my opinion.
I no way am I saying that the lpfs is a bad upgrade.
What I was stating is that the op does not "need" one for a mild upgrade in hp. It will not hurt, but he was asking on what was necessary for low dollar mods to start with.
Also I was only stating is that in a lot of trucks, even ones with dual fuelers, the stock lift pump works fine. I am not saying that it is perfect by any means. But for a single stock hpfp truck he may be better off starting with a 15 hpfp and turbo before dropping to money on a lpfs thinking that it will gain him power by itself. Or that it is needed to support a tuner only truck. Because the stock ones have the ability to support much more.
Other than that let me finish with this statement. A low pressure fuel system upgrade is not going to hurt you in any way. Never claimed it to. But it will not make you more power. And if your looking for cheap hp I would start somewhere else first and work up to the lpfs.
To each his own. Not trying to start an argument nor have I said anything negative about anyone's product. Just trying to help the op with his list of mods and where to start.
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