An odd question for those of you with Crower cams (and cam gurus)

ASSISTANCE Hybrids & Advanced Aftermarket Engine Performance
1

I’ve noticed that the specs of the Crower 404s are different compared to the website and the tech card that i received with the cams.

on the website, it says “advertised duration”: 243/241
on the tech card that came with my cams, it says “advertised duration”: 300/290

so my question is what’s the difference? I always get people asking me what the specs of my cams are and I’m not sure what to tell them.

why is there such a big discrepency between the specs on the website and the specs on the actual tech card?

Apparently, this person had the same question, but didn’t get any answers:
http://www.g2ic.com/forums/showthread.php?t=68792&highlight=crower+advertised
here are the specs on crower’s website:
http://www.crower.com/misc/cam_spec/cam_finder.php?part_num=62404

also…why does the website state the clearence is .006/.008 HOT, while on the tech card, it says .006/.008 COLD?

so my question is for those of you with crower cams, can you compare the tech card that came with your cams and the website specs and post your results?

I don’t know much about the manufacturing process, but I imagine they are machine ground and can understand if the difference is +/- 5 degree duration, but we’re talking a 49 degree difference in duration…

2

haha, trying here to huh man?

3

i think you should personally call crower on that one. i dont recommend doing valve adjustments on a hot motor. .006 - .008 cold seems about right. :run:

4

i’m guessing i’ll get a response from crower mid-week.
I just find it weird.

5

i noticed that too
i run around with my spec sheet in binder to got to school with and then i hopped back on the internet and saw the differences…i think 300+ degrees of duration is an awful lot…
wanna know an even more screwed up difference?
check out nopis specs on their listing of crowers ls cams

6

:werd: i really doubt its 300 anyways.