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Originally Posted by Wulvndawg  M44...Not sure if I mentioned it but I have a 95 318ti which I believe means I have the m42 engine...the 1.8L. That would account for the 6250rpm redline start over your 6500rpm redline start.... |
The 6300/6500 RPM numbers I quoted are out of "Jetzt helfe ich mir selbst", Vol 153, for the M40 and M42. In the text explaining the table, the authors mention the sustained engine speed is derated 200 RPM, and suggest derating it a few hundred rpm more would be sensible for a longer engine life. The figures may be rounded to two significant figures: there is no way to tell from the text.