Interesting comments even though I don't agree with any of them. As I mentioned earlier, the advanced tuning book that I harshly criticized failed to present any relevant or specific instruction or information on calibrating Ford engine management systems. In fact, the following document from Ford performance has plenty of good information that was absent from the "advanced tuning book."Jan,
I think the books and what they offer vs what a prospective buyer wants to believe they offer is problematic with some consumers. For example, you were critical of the book for,
These sorts of disappointments are not uncommon for readers who do not understand the basics of a particular device, in this instance the MAF meter. The calibration of a MAF meter is not done from scratch with pencil and paper or a spreadsheet. The calibration requires a MAF flow bench and instrumentation to measure the actual air flow and where necessary correct for ambient conditions. You can use Excel to flesh out the curve once you have the basic curve but you need to do the heavy lifting with the flow bench first to get that curve to flesh out.
You obviously went into the book purchase experience expecting to find a mathematical formula to build a MAF transfer function table. As you discovered through first hand experience it doesn't work that way. You were disappointed. The origin of your disappointment was your own lack of knowledge and experience with these devices. The problem was not with the publication.
Whenever a potential enthusiast approaches the learning experience like this it is probably better to forego the educational process and just buy the knowledge from a tuning shop as part of their tuning service. Continued attempts to turn the proverbial sausage grinder backwards waiting to create a steak from the ground meat never works out well.
Ford Performance EFI Tips
In regards to MAF sensor calibrations, As enthusiasts, many of us don't have access to a flow bench for MAF sensor flow testing and calibrating. However, depending on the engine management system and MAF sensor being used, us enthusiasts may have access to value files and known MAF transfer functions that will allow us to make MAF sensor transfer function adjustments and calculations if needed.
Finally, the following response besides being condescending, may not be a solid recommendation:
"Whenever a potential enthusiast approaches the learning experience like this it is probably better to forego the educational process and just buy the knowledge from a tuning shop as part of their tuning service. Continued attempts to turn the proverbial sausage grinder backwards waiting to create a steak from the ground meat never works out well."
When I say " not a solid recommendation" I suspect that you forget to take into consideration that some tuning shops are incompetent and unable to provide an acceptable level of service.
For example, many years ago, I purchased a life time Ford EEC V calibration service from a tuning shop in the Eastern USA that was named after the Amazon jungle in South America. The tuning shop in question was highly regarded and recommended on one SVT Cobra forum as being the best in the country. In reality, what I experienced was substandard calibrations that resulted in a vehicle that never ran properly and when I would request a tuning revision, emails and calls would go unanswered, Furthermore, if I did get a response from the said tuning shop, it would be a lady who sounded like she had down syndrome while delivering excuses such as "your email must have been sent to his spam folder" to cover up for their poor service.
My disappointing experience with the tuning shop I mentioned earlier angered me so much that that I cut my losses and took over the engine management calibration duties myself with SCT pro Racer software. I also received training and support from SCT and with that, I have a properly running vehicle that I can quickly calibrate myself rather than have some one else do it and that's a win in my book.
The point that I cannot stress enough to protect your self from running into an incompetent tuning shop or questionable individuals offering instruction is to deal directly with the manufacture of your particular engine management system when seeking instruction, training or a referral for a shop / dealer offering calibration services and this is the approach I have followed ever since I took over the tuning on my car and so far, I haven't experienced any headaches.