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Message: <blockquote data-quote="ALBundy" data-source="post: 488601" data-attributes="member: 15"><p>Relatively low when compared to other engines in the m5x category. The M50 itself has a static compression ratio of 10.5:1. That was what I meant. You have to understand the context of the discussion which is with regards to octane level to engine Hp/torque. My point is a m52b28 which has relatively lower static compression when compared to the M50b25, m52b25, m54b25 and even the N52 engines which all have a higher static compression won't be able to fully utilise the higher octane petrol compared to those that have a 10.5:1 compression ratio.</p></blockquote><p></p>