3rd Generations:
If you are talking about aftermarket cams, then no, none are available.
Don't give your hopes up however. If you own a car with a 1.8 or 2.0 liter
engine, you can get a factory intake cam from the JDM FS-ZE engine (which
has a lift of .341 and the duration 210 @.050). A short run of MazdaSpeed
exhaust cams was also recently made available for that engine and has a lift of
.341, and the duration of 210 @.050. The early version of the MazdaSpeed
exhaust cam (FS9P-12-440) supposedly performs better (by about 1-1.5%
@6000rpm) than the revised version. A TSB was issued in Japan concerning
stalling/idling issues under cold engine and/or cold weather situations and thus
the exhaust cam timing had to be reduced slightly in order to decrease over-
lap from 17.5 to 10.5.
Note that the stock intake cam has
lift of .341 and a duration of 198 @.050.
while the stock exhaust cam has
lift of .322 and a duration of 200 @.050.
Part numbers as follows:
FS-ZE intake cam: FSH9-12-420
MazdaSpeed FS-ZE exhaust cam: FS9P-12-440A (discontinued)
Cam gears from Tripoint Racing are also available.