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Old 01-07-2013, 07:59 PM   #38
mattcfish
R90SS/6
 
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Joined: Feb 2008
Location: Bellingham, WA RAIN or shine
Oddometer: 217
A lot of semantics being batted around. Of course I know valve timing is measured at the crank. But the cranks are all the same, the cam has been modified ( by moving the key slot back) to produce more advance. The question is...are the later cams advanced 1.5 degree, 3 degrees, or 6? Maybe it really doesn't matter, both cams perform, just at slightly different curves. Last time I checked you could still buy special offset keys from San Jose BMW to make a straight cam advanced or an advanced cam strait. If not, if Mercedes use the same key, they are still readily available on some of the parts sites.
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