Quote:
Originally Posted by soutthpaw
This is why I need a 20 position chip... I was trying to shorten the PW and raise the ICP by the opposite amount. IE lower PW 10% and up ICP 10% thinking less fuel but better atomization...
I am wondering how advanced of the SOI would be safe at my altitude. wondering if there is a guideline like 1 degree per 1000 feet elevation for example. Now Cody is suggesting the SOI is not a big influence on economy right? I'm trying to get a good fwy econo tune thus I am working in the 1700-2200 rpm range with my mods. Cody, Do you think pulling the MFD down on the low end of the APP would have a bigger effect? the downside is that would affect the whole RPM range at that APP
Dave, say hi to Santa for me and tell him I been a good boy(lie) being you live in the same town as him
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As far as safe SOI goes......
. There is no magic number. Without retyping everything I typed in the SOI thread, I will just say that there are
far too many variables to put a number on it.
I didn't suggest that SOI wasn't a big influence in economy....only that there are far more adjustments that can be made on top of SOI to help increase efficiency.
Pulling MFD down will do nothing for economy except slow your acceleration for any given physical accelerator pedal position. If you want to
accelerate at a given rate, you will be injecting a similar amount of fuel whether or not you're at 20% APP in one program or 30% in another program with a less sensitive pedal. Besides, once you start really screwing with the MFD map, your shift points get out of whack and then you need to adjust them again (remember how shift speeds are based halfway on APP).
