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Re: [6pack] GP2 cam idle characteristics

To: Sally or Dick Taylor <tr6taylor@webtv.net>
Subject: Re: [6pack] GP2 cam idle characteristics
From: Robert Lang <lang@isis.mit.edu>
Date: Thu, 19 Jun 2008 15:22:13 -0400 (EDT)
On Thu, 19 Jun 2008, Sally or Dick Taylor wrote:

> Vance---Why would "higher ratio rockers" require more valve lash?

I'm not Vance - he can speak for himself. But the dudes that make higher 
ratio roller rockers warn you to "adjust" your valve lash based on the 
rocker-arm ratio. I think it has to do with reducing the shock on the cam 
and lifter due to the larger "ramp" load - with a high-ratio rocker, the 
cam is actually lifting more (or technically there is more inertial load).

Undoubtedly, someone will find error with my reply, but the Goodparts cam 
sheets warn you to adjust base on which rocker setup you have. I am 100% 
certain of that as I just read one on Sunday.

> Dick

rml
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