Re: [AMC-list] question on this cam grind, specs

[Frank Swygert <farna@xxxxxxx>]

Obviously the 0.006" lift value isn't close enough to "advertised" value. I checked the Comp Cams site and one of their "towing" cams.

Their second AMC cam specs @ 0.050" lift is 206° duration and 0.433" lift. This is close to the one you have as far as duration. It states "Excellent torque and throttle response. Good for towing. Smooth idle."
http://www.compcams.com/Cam_Specs/CamDetails.aspx?csid=8&sb=1

So the cam appears to be about right, the 0.006" measurement is messing everything up. I've always been told that the 0.050" lift specs are the most important, but you'd think they'd have given the advertised (I think that's seat-to-seat) figures as well. That's all Comp Cams gives on their cards -- advertised and 0.050" lift. 

----------
Date: Fri, 12 Feb 2010 13:17:23 -0800
From: tom jennings <tomj@xxxxxxx>

I didn't calculate it -- it was stated on the sheet! It was at 0.006" lift,
eg. not quite but close to seat-to-seat. At .050" lift it's 202 degrees
duration.

(I didn/t say, but lobe centers are 108 apart; stock is 111.)


--
Frank Swygert
Publisher, "American Motors Cars" 
Magazine (AMC)
For all AMC enthusiasts
http://farna.home.att.net/AMC.html
(free download available!)

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