Scott, Elon:
I think Elon is right that you are talking about 1.5 and 1.6 to 1 rocker
arms; sounds more typical, anyway.
However, Elon's math seems off, to me: .1 is not 10% of 1.5; it is 6.67%.
Here is the way I would calculate it:
(1.6/1.5) X 0.557 = 0.594 inch lift, for the 1.6-to-one ratio rocker arms.
Russ Mack, #1226B
-----Original Message-----
From: owner-land-speed@autox.team.net
[mailto:owner-land-speed@autox.team.net]On Behalf Of Elon Ormsby
Sent: Friday, December 13, 2002 12:34 PM
To: land-speed@autox.team.net
Subject: Plymouth Rock- ers
Scott asked . . . the mechanical cam going into my 440 plymouth has an
advertised lift of .557 inches with rockers that have a 1:5 ratio. How much
would 1:6 ratio rockers affect this. . .
Scottt, your ratio is actually 1.5:1 or 1.6:1 (not 1:5 as you indicated).
The difference between the two is (1.6 - 1.5 = 0.1) or 10%. 0.557 X 110%
= .613 lift for the 1.6:1 ratio.
-Elon
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