Originally Posted by raptor660
put a blower on series II to make it a series III?
Ok here'* all of the differences:
L32 connecting rods are stronger than L67
L32 has GenV blower and L67 has GenIII
L32 is Drive-by-wire TB vs a mechanical TB on the L67
L32 is has a returnless fuel system and different injectors than L67
L32 may have larger valves than L67
Timing, firing order, etc should all be the same because an L67 programmed PCM can be used with an L32 as long as a mechanical TB is still used. Just putting the GenV blower on a S2 doesn't make it a S3 but the GenV is more efficient.
Your girlfriend'* sister is going to have the L26 motor. The L67 produces 240HP and the L26 produces 205HP. The Bonne may or may not be faster with the L67 due to the Bonne being heavier. A couple of quick mods could probably fix that though