Good to see it put to the test, good luck with this rebuild btw.

Just yesterday we were tuning a 2.3L EVO9 that has variable intake cam and a sprocket on the exhaust cam. The builder had set the exhaust cam by mistake with abt 6deg of advance! Come tuning time we could instantly tell something was off with the cams.

1- Idle vacuum was high
2- Low down pull was amazing (car could pull from a stop with 2 up in 3rd)
3- Power dies after 5800 and logs showed lots of ignition knock despite the low load readings and the mild timing tune.

So we retarded the cam for testing to 4deg of retard, and all the above are now the opposite.
We lost some vacuum, and lost the low down pull as the car cant start in 3rd without frying the clutch now.
Finally power now continues all the way to 7000 and we eliminated the ignition knock.
Intake cam was setup to almost 0 setting in the high range.

Just thought of sharing as it might help.

As an off subject regarding my AMG, do any know if there is a difference between the exhaust cam of the M104 280 and that of the 320? On the AMG 3.6 104 its believed that the intake cam is an AMG product while the exhaust is the stock C280 unit but with a new sprocket that we think is retarded from the stock 280 unit.

Now if the 320 has a diff exhaust more aggressive profile, it would be cool to try it with the sprocket provided on the AMG unit.

And I wonder why none have tried to use the AMG intake cams and exhaust on an M120!!! They should fit I think and they will make good power for sure. I have driven a 280C with the AMG cams on it and the car made serious power.

__________________
Jay,
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-1995 Blue W202 C36 AMG (M) SOLD ;(
-1995 Black W140 S500 (Lady)
-1992 Black W124 E300 (Dima) (Ex-Mosselman
Twin turbo Kit).
-1988 Black W124 300 E 4-Matic.(Nadeen)
-1983 Brown W126 500SEL.(Old Lady)(Sold)
-1981 Gold W123 280CE.(Dareen)(Sold)
http://www.youtube.com/user/jayrasheed