Quote:
Originally Posted by Boss330
Just like the S55 is based on a BMW AG engine so was the S54... The S54 was NOT a bespoke BMW M engine like the S65 and S85
In fact the S54 had less bespoke M modified components than the S55 has... S54 is based on the M50 with the following mods:
- Individual throttle plates for each cylinder
- Continuously variable "Vanos" valve timing
- Lightweight pistons
- Graphite-coated conrods
- Larger inlet valves
- Redesigned equal length exhaust manifolds
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Hahaha really? You don't half what you speak of. The water pump, thermostat, oil separator system, head and block were all different. No M5x parts even fit the S54.
My oh my.