Interesting. I suppose I didn't really catch on to the fact that the actual specs were going to be any different from the ones on the web site. Brain fart I guess.

Well I used what I could from the specs that are currently listed on thier site. Since there is no mention of lobe centerlines or IVO/IVC/EVO/EVC event angles - I assumed stock centerlines. I'm going to list out the specs for all of the cams in question. All of these specs are based on seat to seat timing(which gives a more accurate simulation in Dyno2000).

Stock cams(from the overhaul manual 2gnt_420a_overhaul.pdf)
Intake lift : .324 in.
Exhaust lift : .278 in.
Intake centerline : 109.2 ATDC
Intake duration : 221 degrees
Exhaust centerline : 107.4 BTDC
Exhaust duration : 217 degrees
IVO : 1.3 BTDC
IVC : 39.7 ABDC
EVO : 35.9 BBDC
EVC : 1.2 ATDC
notes : What can I say. Stock cams are always shitty unless the car itself is exotic.

What I assumed for the Crower stage 2 cams. Again, here I assumed that they kept the stock centerlines.
Intake lift : .355 in.
Exhaust lift : .310 in.
Intake centerline : 109.2 ATDC
Intake duration : 240 degrees
Exhaust centerline : 107.4 BTDC
Exhaust duration : 240 degrees
IVO : 10.8 BTDC
IVC : 49.2 ABDC
EVO : 47.4 BBDC
EVC : 12.6 ATDC
notes : These are nice. Good duration. 23.4 crank degree overlap - a big jump from the measly 2.5 crank degree overlap on the shitty stockers. With 192 degree duration@.050 - it falls .6 degrees away from actual overlap@.050. Also, could be better with more lift on the exhaust cam. Better than stock.

Here's the Crane #12 cams
Intake lift : .364 in.
Exhaust lift : .364 in.
Intake centerline : 107 ATDC
Intake duration : 246 degrees
Exhaust centerline : 113 BTDC
Exhaust duration : 246 degrees
IVO : 16 BTDC
IVC : 50 ABDC
EVO : 56 BBDC
EVC : 10 ATDC
notes : Good lift. And with 204 degree duration@.050, there is a whoppin 5 degree overlap@.050 lift, which is most likely noticably audable. Good street cam.

And here's the new and improved actual Crower stage 2 spec.
Intake lift : .389 in.
Exhaust lift : .357 in.
Intake centerline : 106 ATDC
Intake duration : 248 degrees
Exhaust centerline : 114 BTDC
Exhaust duration : 246 degrees
IVO : 18 BTDC
IVC : 50 ABDC
EVO : 57 BBDC
EVC : 9 ATDC
notes : Nice intake lift for a street cam. The timing is a bit wierd though - nothing that gears cant take care of. Not much audible overlap with only 196/194 duration@050. Good street cam.

With the new spec, the Crane #12 and Crower stage 2s look almost identical. Its got a tiny bit more in the mid range, and its a give and take battle on the high end. I was playing around with the timing on the Crowers a bit and(like the Cranes) they have greater potential when adjusted properly....but out of the box they're almost identical in output/VE to the Cranes.




95 Eclipse RS : 5 speed
Jeep TB writeup - http://www.dimensia.com:81/jimbo/JeepTBfor2gnt.html