does anyone know the part # for a single disc 7.25 Quarter Master clutch
disc that fits standard TR4 input shaft? Ive been stuggling trying to
contact Quarter Master. On an old subject I did e-mail apple hydrolics
asking how they tested there shocks. they simply stated they tested them.
when I inquired if they might be interested in testing used race shocks I
got no reply. and no answer how they were tested. Jeff
----- Original Message -----
From: "Randall" <ryoung@navcomtech.com>
To: "FOT" <fot@autox.team.net>
Sent: Sunday, February 27, 2005 12:50 PM
Subject: RE: Yikes and cam problem:: HELP!!!
>> How do you compare two cams using 0.050 numbers when one runs
>> with a valve clearance of 0.010 and the other runs at 0.030? Not a very
>> useful standard.
>
> As I understand it, the .050" standard came about both because it's harder
> to
> measure seat-to-seat (because of the slow ramps that start and stop the
> valve
> motion), and because the first .050" or so of valve motion contributes
> little to
> breathing. Lift and duration is not all there is to a cam profile ... for
> some
> American engines you can even buy a "cheater" cam that meets all the
> factory
> timing and lift specifications but breathes significantly better, by the
> simple
> technique of opening and closing the valve faster.
>
> Some interesting information at :
> http://www.iskycams.com/degreeing.php
>
> Randall
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