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Message: [QUOTE="Charles, post: 1566097, member: 103"] Injection pressure is a function of plunger travel speed (cam rpm, cam lobe profile) and plunger diameter, vs nozzle orifice flowable area. Welcome to every mech pump on planet earth. I assure you, 400cc delivered at anything approaching 30k psi with just the nozzle stock on the high hp E7 would tear most any 7.3 block to pieces. Stock they inject enough fuel on a stock engine with emissions reg compliance to produce 1650ft/lbs on SIX unit pumps.... That's about 2000ft/lbs of torque worth of fuel on EIGHT unit pumps... You think you're setup is ok with that? LOL I'd be more interested in something like, limiting to say 950 ft/lbs and spinning a stock forged motor with springs, studs and pushrods to say 5000 or 5500 for peak, and making 1000 on a GT55-94 as a single. Then coming back down to a sewing machine smooth idle because my ENGINE OIL isn't driving my injectors! Or, on a built engine, have that same buttery smooth idle but let the fuel flow on up to 1200 - 1500 or so ft/lbs of torque with compounds kissing 120 - 150 or so psi and making 1500 or so at 5000 with no idle smoke, buttery smooth, clean drivability and a trans that will live. Or.... let it float on up to 150+ psi on the compounds and open the pw a bit more and do torque comparable to a heui 7.3 on nitrous making 1000hp at 3000rpm.... but at 5000 to 5500 or so and do 1800+ hp and drive around clean and crisp. Grind a little metal and spin her on up over 6k and it will go over 2k.... Not real sure where you would need all the extra fuel over what the E7 has just to consider it "worth it". LOL Hell, I would rather drive a MEUI truck at 300hp, because it would be so consistent and crisp, like a nice P7100 truck. Perfectly crisp accurate injection.... not to foamed up Rotella shit-show.... [/QUOTE]

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