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Power Strokes
7.3 Aftermarket
Tuning 101 - Thread Merged with Injector Posts
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[QUOTE="cleatus12r, post: 1319664, member: 18093"] I'm bowing out. Yes, people have made sacrifices to get me where I am today (and had to fix a hole in a ceiling, get bodywork done on two rear pickup fenders, and pay for some travel expenses too...and put up with a big barking dog for almost six months while my ugly camper sat in his driveway), but I am no guru or tuning god so a BIG "THANK YOU" to Bill Cohron for putting up with me for two summers and then allowing me to continue remotely for another year or so. I started tuning because nothing I could get between 2005 and 2007 made me happy. I'd owned two 7.3L Powerstrokes in that time and the only word I could use to describe the tuning I'd found was "frustrated". I started digging on my own...and yes, search-savvy people will see that I asked a lot of questions in the beginning. Heck, back in the Sniper days I even bought a $30 "tune" from Matt for a '96 manual that needed some power.....I paid $30 for increased injection pressure that I could have modified on my own. Well, $30 was less than a Juice module that would have accomplished the same thing. Look where we are now. We have some tuning places that have figured out that 6.5ms of pulse width at 3000 PSI is too long for 250/200% injectors...and some that still do it. These are the same places that make monumental changes to the start of injection mapping yet "clamp" the maximum SOI to 30 degrees because ....well...I don't know why. The current offering of PCMX known as Minotaur leaves little to be "messed-up". Speaking of ridiculous amounts of commanded pulse width, when one can erase that other tuning and put in a calibration that uses exactly half of the commanded pulse width and STILL make more power (because ICP doesn't fall to 1500 PSI and due to the PW mapping try to run even MORE pulse width at 3000+ RPM) with far less smoke, that says something. When multiple attempts have been made to stop the stuttering and jerking while using cruise control down a hill and it's gone within 5 minutes of live-tuning by someone else, that also says something. Unfortunately for those in tuning land that don't have the ability to live-tune every vehicle they sell calibrations for, some of their customers must just suck it up and live with the issues. Sure, the more tuning one does for a specific injector, the closer they [i] [b]should [/b][/i][b] [/b] come to having ALMOST road-ready tuning for everyone else using that injector. However, that is not the case. I'd be willing to pay the regular custom tuning fee to a vendor that wanted to write me their best daily-driving calibration for a Super Duty with a stock high pressure oil pump and 250/200% injectors that will put me in the 350 RWHP range. It doesn't matter what PCM code is used as I can put any E99-03 automatic PCM in this particular truck that I want without issue in a matter of a minute or two. I can guarantee that it will run like dog poop. I'll even take it on the encrypted Hydra platform for my chip. Scratch that... just write it for TNAA4S2 and I'll put it on a buddy's truck as well as mine. They will run completely different even though the injectors are the same (but from different companies). [/QUOTE]
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