aem regulator
their tech doesnt know. says it depends. its weird, because the regulator supposedly comes preadjusted to 40 psi. my screw is loose.
http://aemelectronics.com/files/inst...0Regulator.pdf
well, anyway, if someone is interested: 5-6 turns take you to 3-4 bars. the regulator has a wide range, but is very sensitive where it matters. kind of hard to adjust precisely.


