Join Date: Aug 2013
Location: litchfield, maine
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7.3 icp vs injector pulse width problems?
My 7.3 running no tunes stock runs icp at wide open hot holds 2700 psi with 39% ipr pulse width is roughly 2.67m/s. Now, when I run my chip, ts chip, i get I spike 2700psi with roughly 2.8 m/s with 43 % ipr. At wide open, the injector m/s go up and the icp pressure goes down to roughly 1300 psi with 60% ipr. So, the m/s usually goes to about 4.25 m/s and the icp goes way down. Why so much m/s? Is this because my hpop cannot keep up so its expanding the injector open time? Engine gets really loud when this happens, like the injectors get loud and the engine drones a lot, probably due to timing change and starving of fuel and oil im guessing. Any ideas?
2002 f250 ccsb 4x4, 250/200's,5 inch mbrp,itp boost fooler,regulated return/race fuel system, s&b intake, billet 4r100, swamps idm, lifted 2 inches, leveled, 35inch nittos on 18" s468, mishimoto intercooler, hydra tuning, detroit locker rear, dynomat, not done.........
2006 f350 ccsb 6.0, sct tuner 3015 custom tunes, studded, deleted, exhaust