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      10-07-2011, 07:41 PM   #2
E46 + E90

Drives: E46 M3 + E90 M3
Join Date: Jul 2008
Location: Illinois

iTrader: (1)

Garage List
2009 BMW M3  [0.00]
2002 BMW M3  [0.00]
Thanks for sharing. I bet OETuning was able to extract some nice numbers.

Please no one take this the wrong way and I am not trying to spread any drama, just trying to inform.

Based off other threads I saw on other forums, I believe this car actually had an intake prior to getting tuned, so it's exactly accurate to call it "stock".

In addition, the "Baseline" posted is RunFile_001.drf but it has been publicly posted that was the lowest run amongst the other baseline runs. If you search enough, you'll see that they were able to pull a 346.21whp and 382.70wtq in their fourth baseline run. That could also skew how one measures gains. Typically to have the most accurate comparisons of delta in power, you pick the highest of your baselines and the highest of your tuned results. Not the lowest baseline and potentially your best tuned run.

Then finally in the text of their blog post as quoted, the peak figures they type out don't match the data depicted on the advertised graph.

There may be some typographical errors, so I am in no way accusing OETuning of not being able to extract genuine power out of the 1M N54. I just want to raise awareness on how to analyze dynos and make sure we are all interpreting them fairly, accurately, and realistically.

It would be great if OETuning can provide a graph of several baseline runs of a 100% stock car. Then do the same for the same care with their tune. I bet they'll be able to show nice gains without potential discrepancies or questioning.
E90 M3 DCT|Melbourne Red . Speed Cloth | My Build Thread
E46 M3 6MT|Jet Black . Black Nappa Leather | My Build Thread