Quote:
Originally Posted by bmw335idizzle
Thanks for detailed info... With the e50 17.5 psi, are you regarding map 5?
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Yes map 5
should auto-adjust to 17.5 psi, but it depends on many things such as IAT's, outside temps (I've noticed fuel trims max out easier when it's colder), ignition timing curve, and the type of JB4 board you have.