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      10-15-2024, 03:33 PM   #4
RalliartRsX
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Drives: E92 M3 2010
Join Date: Dec 2023
Location: MD

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Quote:
Originally Posted by coop75 View Post
What’s the difference between the S65 4.4L and P65 4.4L after you make the P65 as a ”street version” ?
Does the same apply between S65 4.0L and P65 4.0L ?
For one the flat plane crankshaft is bespoke in the P65 vs S65



So "Street version" in a sense that; external ancillaries (dry sump, smaller race alternator that doesn't have to drive the immense amp draw of stock electronics like the nav, radio, ac, etc) will be removed and replaced with it's "street" based counterpart



The P65 architecture itself (flat plane crank, bespoke rods, pistons, compression, bore, cylinder liners, etc etc, that make this a race engine) will remain.
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