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7.3 Aftermarket
Tuning 101 - Thread Merged with Injector Posts
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[QUOTE="cleatus12r, post: 1316707, member: 18093"] Here are just a few problems you'll run into based on certain scenarios....and could we PLEASE use the actual HEX CODE nomenclature because just saying "vdh" and "pmt" mean absolutely nothing when people start loading calibrations into their tuning software and chips because the common VDH2 is NOT interchangable with the other common VDH4 and VDH5? 1. You have just successfully uploaded your 224K binary into the forum for your TNAA4S2 (VDH2) for 200% nozzles (we won't worry about capacity yet because that changes nothing but the absolute pulse width cap) and someone goes and downloads it so they can use it on their TS chip that is using TNAA5S8 (VDH4) tuning from someone else. Guess what happens....you get blamed for giving away a faulty tune that causes a stumble when changing from one position to the next. This also does the same thing with a Hydra, but 224K binary doesn't work with a Hydra. Bill has a converter for this and an encryption tool to cover that though. 2. Liability? Say someone blows up their engine using your calibration. What then? 3. Without numerous definition files and knowing how to change normalizers to correctly make mapping a copy and paste deal, it's going to be necessary to have calibrations available to all of the different hex codes out there because if someone downloads your TNAA4S2 calibration for 200% nozzles to use in their VCAB0_02 truck, even if they have Minotaur and a definition for their 95-97, your tuning is useless to them. Searching through raw HEX for maps is a tedious process....especially when the maps are different "sizes" between those two examples. Also, certain (and rare ones like APX1) that won't run correctly on any others have to be made. Also, people don't understand PCM code compatibility. Neither did I back in late 2007 when I started. It doesn't take long to figure out what works where. Having three iterations at home and six more at work really helps one understand what works and what doesn't when swapping between years of trucks. 4. Personal experience here: All 200% nozzle injectors ARE NOT THE SAME. The tuning for the 250/200% injectors from builder "A" in my otherwise all-stock truck will NOT correctly run the same size injectors from builder "B" in two similar vehicles and vice-versa. I cannot run less than 1.3mS of COMMANDED pulse width with my injectors or they do not reliably fire whereas I can get away with a COMMANDED pulse width of 0.9mS with others. 5. Cold-start smoke? Ford knew what they were doing with the tuning. Leave 95% of it alone. Seriously. It's supposed to be -8 here tomorrow morning. Say I make a video of the 250/200% truck starting without being plugged in (and since it's 2wd and there has been snow on the roads for almost 2 weeks it's been sitting there), how would that grab you? Stock power (220-ish) tune. [/QUOTE]
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