Quote:
Originally Posted by mhart
The dyno gains look great, but if I'm reading it correctly, those Air/Fuel ratios look pretty high (16.2 it says?). Did you run into any issues with detonation?
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This is one thing that has plagued our dyno, the Innovate unit that is built into the dyno displays a proper reading, but after it filters into the computer and onto the screen for print out there is signal loss, and it reads .5 to 1 full point leaner than the real world reading. Mustang has never been able to help resolve the problem. It is trivial though, the LM unit is 100% spot on, and we use the graph to see how smooth the AFR is, because after all that is key as well.
Also, all cars we tune or just dyno, start off around 14 - 15 AFR and dip down to their open loop WOT fuel ratios. There is no pinging at that point and when the AFR is critical, it has already dropped down to the proper or "safe" level.