Delasangre
Well-known member
I pulled a data log today, WOT 2nd, 3rd and 4th. I logged Accelerator pos, MAF actual (couldn't find a MAF requested), RPM, boost requested and actual, and high pressure requested and actual.
What is the MAF reading supposed to be especially under WOT? I notice that the MAF actual peaks at 1100 mg/str and at 3000rpm to 4000rpm tapers off to 900 mg/str. I am getting 450-500 mg/str at 0% accel pedal position.
Everything besides the MAF seems to track, boost request holds 2637 mbar but actual tapers down 2650 to 2150 which I assume is the stock turbo running out of puff at higher RPM. High pressure fuel matches actual vs requested.
What is the MAF reading supposed to be especially under WOT? I notice that the MAF actual peaks at 1100 mg/str and at 3000rpm to 4000rpm tapers off to 900 mg/str. I am getting 450-500 mg/str at 0% accel pedal position.
Everything besides the MAF seems to track, boost request holds 2637 mbar but actual tapers down 2650 to 2150 which I assume is the stock turbo running out of puff at higher RPM. High pressure fuel matches actual vs requested.