1.6 vs. 1.7 rocker ratio

cojonepony · 08-27-2001, 09:29 PM

Aside from the obvious change in lift, what about duration? Does it change at .05? Does the advertised duration change as well as the seat timing? Any camshaft techies please feel free to respond.

exgmguy · 08-27-2001, 09:47 PM

Only lift changes.

------------------
1988 Mustang GT
11.8 @ 123 (7/14/01)
1992 BadAzz Wrangler
1993 Explorer

See my car at: www.mustangworks.com/cgi-bin/moi-display.cgi?179

Unit 5302 · 08-27-2001, 11:19 PM

I agree with that.

It's a rocker ratio, meaning you are multiplying the gross cam lift. 0 lift multiplied on the 1.6's is 0 lift. 0 multiplied by 1.7 is still 0 lift.

08-27-2001, 09:29 PM	#1
cojonepony Registered Member Join Date: Feb 2000 Posts: 132	1.6 vs. 1.7 rocker ratio Aside from the obvious change in lift, what about duration? Does it change at .05? Does the advertised duration change as well as the seat timing? Any camshaft techies please feel free to respond.

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08-27-2001, 09:47 PM	#2
exgmguy Registered Member Join Date: Feb 1999 Location: Utica, Michigan Posts: 2,631	Only lift changes. ------------------ 1988 Mustang GT 11.8 @ 123 (7/14/01) 1992 BadAzz Wrangler 1993 Explorer See my car at: www.mustangworks.com/cgi-bin/moi-display.cgi?179

08-27-2001, 11:19 PM	#3
Unit 5302 Registered Member Join Date: May 1999 Posts: 5,246	I agree with that. It's a rocker ratio, meaning you are multiplying the gross cam lift. 0 lift multiplied on the 1.6's is 0 lift. 0 multiplied by 1.7 is still 0 lift.