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Message: [QUOTE="Charles, post: 564868, member: 103"] Towing requires a much larger injector nozzle than cruising does. If not, then the [i]stock[/i] DT 530 at 2xxhp wouldn't use a nozzle that we routinely made mid 500's with on a set of BD's. Even though that engine was only designed for maybe 300hp, it still got a set of nozzles that would pull mid 5's on fuel way back when, because that was the most efficient way to make that power. A stock 7 hole powerstroke nozzle for instance is probably optimized for like 100hp, which is what most superduty's probably make the most, if that in reality, on the road, cruising around. It means spinning tires and leaving sportscars in your wake. I pulled 544rwhp on the Dynojet with 30% nozzles in 2007. Smokey [i]at[/i] that power level (500hp). REAL.... smokey. Whereas a 200% EDM for instance, at the exact same power level can leave no visible smoke in the mirror at all, while running hundreds of degrees lower EGT. If the programming existed in mass, like it [i]finally[/i] seems to for those combos you mentioned, you would have people towing and such that would be even more grateful to run something like a 160/200 instead. But since no selection of programs are readily available for such a combo, it gets bypassed altogether. [/QUOTE]

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