200q20v Digest, Vol 54, Issue 5

birdmanmt at gmail.com birdmanmt at gmail.com
Fri Apr 4 10:07:14 PDT 2008

RE: 7A cams.  I've been running them for quite some time now.  Minimal to
not noticable decrease on the low end and the car really pulls from 4-6500
now.  IIRC, the overlap is 3 degree's or some minimal amount.  Somewhere at
home I have a data sheet with all the specs on AAN/3B/7A cams.  With bigger
turbo's, i've tuned several cars that have seen an INCREASE in low end
driveability just from a 7A cam swap and you'd be suprised how much we had
to change the tuning over both the ignition and timing maps to compensate
for the additional air.

Mileage has always sucked the way I drive, it's no worse with the 7A cams.
If the overlap is "bad", i'll deal with the consequences for what it gains


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