M113 E55 Power output



Does anyone know what accounts for the ~25hp differential in power rating for the M113 motor in the W208 and W209? I'm wondering how difficult it would be to get the M113 in my w208 to make the power of an m113 in a 209?
http://www.marcusfitzhugh.com/CLK/coupes.html
i believe it's the compression ratio...



It looks like the compression ratio was bumped up from 10.5 to 11, and the rev limiter was upped to 6700 from 6k.
Fabio Daniel
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I'd be checking the piston to valve clearence very carefully although there should be no issues
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Many thanks in advance
Fabio Daniel



