cams

["Sedon, Doug" <sedond@ors.od.nih.gov>]

john,

my experience w/"s" cams on my 3.0 milano was - not much change below 4k rpms, a
little better than stock above.  about a year later, i added the dimatteo ecu &
afm - now the car screams.  how much is due to the afm/cams, i dunno.  the afm
is not recommended on a stock engine/exhaust. (won't help anything).

specs:	io/ic/eo/ec     deg. dur.	deg. overlap	dur@.050"cam lift,deg.

2.5	37-61-60-24    278i/264e 	61	9.1(.358)i(?)/205e
3.0	32-68-60-24    280i/264e		56	9.1(.358)i(?)/205e
3.0-s	33-74-67-30    287i/277e		63	10.1(.398)i(?)/205e

specs:	lobe ctr/i, deg.atdc	lobe ctr/e, deg.btdc    cam lift,mm(inch)
						       e-valv lift=1.4xcam

2.5	102			228i/108	        4i/6.4(.252)e
3.0		108						228i/108
4i/6.4(.252)e
3.0 -s	110.5					235i/108.5
4i/6.4(.252)e

this info was from the alfa ricambi catalog - hope it makes sense.  i = intake,
e = exhaust, o = open, c = closed, (?) = i don't understand this.

doug s.