Re: Euro vs US engine designation BA

["Brett Anderson" <bretta@xxxxxxxxxxx>]

>Hi Boys And Girls
>
>
>There is often some confusion as to the S and the M as it is often mis
>used in some factory literature.
>All the service, parts and repair literature ( world wide ) use the
>designations below and they are correct.
>
>
>M50 B25 = 2.5 ltr six , used in 93-95 US Model E36 325i and E34  525
>M50 B30 = 3.0 ltr six , used in US version E36 M3
>M52 B28 = 2.8 ltr six , used in US version E36 328 and 528 96-98
>M52 B32 = 3.2 ltr six , used in US version E36 96-98
>S50  B30 = 3.0 ltr six , used in Euro version E36 M3 to 95
>S50  B32 = 3.2 ltr six , used in Euro version E36 M3 to 96-98
>
>The letter ' S '  is  found preceeding the (REAL) Motorsport engine
>designations. ( production cars )
>They  are all equipped with individual throttle bodies
>
>S14  E30 M3
>S50  E36M3
>S52  E36M3
>S38  M5, M6
>
>Osh Minelian
>Race Marque Systems
>

Osh, I have to disagree with you on a point or two.
The 3.0 litre US M3 is equipped with the S50USB30 engine.  The addition of
"US" to the standard designation is to tell the world that the US got the
bullshit version.
Also, 96 and later US M3's were equipped with the S52USB32 engine.



Brett Anderson
BMW and ASE master technician
http://frontpage.bestweb.net/~bretta

Please include all correspondence when replying
to avoid confusion - Thank you

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