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, stock sticks,5 inch mbrp,itp boost fooler,fuel spring upgrade, ais intake, sluggish 4r100, 140 idm mod, lifted 2 inches, leveled,
2006 f350 ccsb 6.0, sct tuner 3015 canned for now, studded, deleted by me, custom fuel system to follow, along with custom tunes