Debating upgrading the injector Nozzles
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From: Holland, NY
Debating upgrading the injector Nozzles
So my truck is going into the Little Power Shop in Bradford, Pa in two weeks. Puking some coolant, so it's time for studs and gaskets. I've got $8k to work with, so as long as the heads don't need replacing, I've got room for some upgrades past the standard bulletproofing items.
I know in my head later down the road I'd like to be running 175's and a stage 2.5 Barder Powermax. However I currently cannot afford to spring for a full set of injectors. Thats something I can manage with the cab on, so I'm saving it for down the road.
Surfing the web, I came across black diamond diesel's website, and saw them advertising "100 hp injector nozzles." This confused me. I was always told HEUI injectors aren't rated by power, but by volume. I understand these are only nozzles and not the whole injector, but what justifies the "100 hp" rating? Is this an upgrade worth looking into considering I will be keeping stock injectors on my truck? Will I realize any performance gains with these nozzles on stock injectors? Or should I take my money elsewhere?
I know in my head later down the road I'd like to be running 175's and a stage 2.5 Barder Powermax. However I currently cannot afford to spring for a full set of injectors. Thats something I can manage with the cab on, so I'm saving it for down the road.
Surfing the web, I came across black diamond diesel's website, and saw them advertising "100 hp injector nozzles." This confused me. I was always told HEUI injectors aren't rated by power, but by volume. I understand these are only nozzles and not the whole injector, but what justifies the "100 hp" rating? Is this an upgrade worth looking into considering I will be keeping stock injectors on my truck? Will I realize any performance gains with these nozzles on stock injectors? Or should I take my money elsewhere?
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From: Holland, NY
Plan is to have them do studs, gaskets, egr delete, updated turbo drain, oil cooler, ipr, ebp sensor, stc, stand pipes, dummy plugs, and check the heads and pray they're within spec. If the heads are ok, going to look into regulated return, new cac boots and tubes, edge cts w/ pyrometer and fuel pressure, and dual disc south bend clutch. then it will be time to get some tunes written. Not sure who I want to go with yet. I know gearhead makes some good tunes, but I've heard some other names thrown around too. i have some time to look into things.
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I've never been a fan of doing nozzles. Why the regulated return? Nobody has ever convinced me there is any benefit, but I could be wrong. If they let fuel out of that back of the head it would have a benefit and I've seen that for 7.3s. All the 6.0 kits I've seen are just a pressure regulator in place of the stock one and serve no purpose in my opinion.
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From: Holland, NY
Thats what a regulated return does. it allows fuel to leave the back of the head, thereby ensuring consistent flow to all 8 injectors. It improves longevity of injectors, and provides a convenient spot to monitor fuel pressure.
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Would not reading pressure there be slightly elevated. Fluids squeezed thru a restricted space increases the pressure of the fluid. Pressure read at the filter haveing more room and less restriction would seem to be lower. Or is my logic too simple or flawed.
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From: Holland, NY
I think of it this way. Downstream of a pump, when fluid is being pushed, the pressure of all areas has to be the same. So if you desire 65 psi @ the injectors, any point before the injectors has to be 65 psi, regardless of the volume of that area. Even with the filter, that bowl still Needs to be @ 65 psi in order for the injectors to see 65 psi.
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