Quote:
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Originally Posted by The long haul
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. |
So, basically not any different from a S55...
It was supposed to say that it wasn't a complete list...
Just like the S55 is BASED on a BMW AG engine, so was the S54. The S54 is considered the final and most powerful evolution of the M50 engine. Yes it has modified components, but it's based on the M50! (Unlike the S65 and S85 which was true bespoke engines).
The S55 also has it's own block, cyl head, exhaust, intake, crank, pistons, con rods, etc. It's also based on a production engine, but has just as many modified parts, incl the major components, as the S54.
Yes, just as much, or little, bespoke as the S54...
Both great engines
My oh my...