n55

  1. stelvio

    N55's...how reliable?

    Hello people of SS. I just recently sold my N54 335i and was looking into the N55's due to so many issues that the N54's had. I N54's are known for wastegate rattle, vanos solenoids, cam ledge issues, HPFP, etc, etc...but I'm wondering how much more reliable and/or improved is the N55 engine...
    • stelvio
    • Thread
    • cam ledge e90 hpfp n54 n54 issues n55 n55 issues problems vanos wastegate rattle
    • Replies: 18
    • Forum: N55
  2. WedgePerformance

    E9X WedgePerformance / MHD - Stock N55 Custom E30 Dyno

    Numbers are in for my baseline and custom E30 map. Peak numbers were 372.15 whp and 438.38 wtq. Really nice power gain under the curve. MHD N55 E Series WedgePerformance Custom E30 on Stock 2012 135i MSport DCT. All pulls in 5th gear. Pull 1 - 372.15 whp 436.16 wtq Pull 2 - 370.80 whp...
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