Quote:
Originally Posted by jlegelis
+1 would love a 'solution' to late E9x N55 HPFP rail pressure issues under high boost. The 'stock' MHD Stage 2+ maps didn't work on my car due to falling rail pressure. See purple line. Seems all 2011-2013 E9x N55's are similarly afflicted due to pump changes from higher-flowing the N54 version. Ultimately I went with a custom map with less boost and slower 'onset'. 
https://datazap.me/u/jlegelis/stage-...-12&solo=11-23 |
Yeah... late e series hpfp will crap out even on pump gas with large turbo upgrade. I cant wait for a more affordable high flow hpfp solution. Spending 5k for a m4 dual hpfp setup is too rich for my blood...