Quote:
Originally Posted by XutvJet
You're basing all this opinion off of this one dyno. There is definitely something going on with this particular N55 with the way it's behaving in the upper rpms. Look at any EWG N55 dyno where the N55 is heat soaking, and you'll see a power getting cut off at/around 5000-5500rpms just like this one.
All EWG N55s make peak at around 6,000-6,200 rpms. The RWD 6MT non-MPPK N55s show around 285-290whp at 6000-6200rpm, the MPPKs around 305-310whp, and the M2 around 330-335whp.
If you draw a line from 5,300rpms to 6,000-6,200rpms and then tailing off like normal, this particular N55 should have probably been making around 335-340whp which is commendable for a conservative Stage 1 OTS tune.
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I don’t think there was an issue with the tune, besides the fact that it’s not that aggressive at all. MHD said their timing is lower, the boost is likely not increased by much - it’s just not a ‘great’ tune, but it’s better than stock.