John---Attached is an old post on the subject from Kastner.
Meanwhile, since I found the S-2 to be a symmetrical cam, setting it up "on the
rock" as per the Bentley manual will give the desired timing results. For this
cam to be appreciated, it needs good compression and fuel metering. Otherwise
it can be a pig at lower rpms.
Dick
-----Original Message-----
From: Dick Taylor
Sent: Thursday, December 23, 2010 5:50 PM
To: tr6taylor@webtv.net
Subject: Fw: Re: S-2 cam specs
-----Original Message-----
From: Kas Kastner
Sent: Thursday, August 8, 2002 8:39 AM
To: Dick Taylor
Subject: Re: S-2 cam specs
All the numbers are after the checking clearance is taken up. Thus you do
the checking at the cam follower to eleminate any possible inaccuracies from
the valve train. The opening and closing ramps will generally be simular but
not necessairly exactly the same. Most of my cams are easy on the opening
and the closing to insure the minimum problem with the valve gear but the
effective rates are pretty fast in most cases. It is lift per degree that
makes the cam effective. Having a nice easy closing of the valve makes a
big difference in the valve seat life and the valve also.
----- Original Message -----
From: "Dick Taylor" <taylorturbo@webtv.net>
To: "Kas Kastner" <kaskas@earthlink.net>
Sent: Wednesday, August 07, 2002 10:40 PM
Subject: S-2 cam specs
Mr. K.
A question came up on the 6PACK List as to whether the S-2 cam lobes
were symetrical, or not. This, as well as where the 282? of duration
starts from. Off the base circle, or after all of the lash is taken up?
I told them I'd ask the Boss.
Boss?
Dick
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