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      09-12-2012, 05:47 PM   #81
tom @ eas
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Drives: BMW
Join Date: Nov 2005
Location: Anaheim, CA

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Garage List
2010 BMW M3  [5.00]
2015 BMW M4  [3.50]
Quote:
Originally Posted by flipm3 View Post
My theory is that that the S65B40 and MSS65 DME are just very tricky to consistently dyno. I could almost bet that these cars with similar bolt ons, but different brands, will perform very similar in acceleration despite brands and dyno numbers. Just a theory though...

Looking at every 100% stock E9X M3 on the forums, they can vary as wide as 40+whp. I doubt BMW is that inconsistent
M3 uses the MSS60 DME, M5 is equipped with MSS65.

Final numbers can be attributed to a number of variables, including conditions, fuel, maintenance, etc. We've seen some stock M3s dyno as low in the low 300s, and some as high as 365whp.
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Tom G. | european auto source (eas)
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