Quote:
Originally Posted by Tippy
But, I will throw this out there from reading from professional tuners.
Boost fuel delivery is completely linear. Meaning, you don't need granularity at all. So, you can have say only 3 rows of boost and the rest PT, idle, and overrun vacuum figures as the remaining 9 (or whatever system you are using).
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I think MAP-based maps are supposed to look very flat. Mine pulls -10% fuel at idle, and same again at high kPA (when the venerable K27/HF runs out of CFM, to keep AFRs correct).
Interesting to hear of the MS row/column restrictions; MoTeC allows you to insert/delete rows/columns anywhere you feel like - so if you want cells every 50 or 100 RPM or 5 kPA around, say, idle, to zoom in and get something sorted, no problem.
However, this mostly seems useful to isolate a specific area to get it sorted - and once done, you generally remove almost all of them. If the values on your ignition map are a straight line on the graph, you only really need the 2 end points as all the intervening points are extrapolated...