CorvAircraft> cam timing on corvair?

[Gary&Sharon]

In an effort to train the untrainable, can someone explain to me what he was 
talking about with "the OT-20 and the best you can get is at 4 degrees of 
advance. Clarks sells an offset key that will get you that."  I understand 
what an offset key is, but what is accomplished with it?  Does that move the 
optimum performance down to the 3,000 rpm range for the 0T-20? or what? 
thanks   Gary




--- Original Message ----- 
From: "Brad/Iris Baerg" <brirbrg at telus.net>
To: "Corvair engines for homebuilt aircraft" <corvaircraft at mylist.net>
Sent: Thursday, January 03, 2008 12:28 AM
Subject: Re: CorvAircraft> cam timing on corvair?


> Michael:
> The program you are looking for is Desktop Dyno.
> I have looked at the OT-20 and the best you can get is at 4 degrees of
> advance.Clarks sells an offset key that will get you that.
>
> Brad
> Tri-Q
>
>
>
> ----- Original Message ----- I need a book, formula, program or website to
> plug in cam profile
> numbers & optimize timing for the torque band you  want?
>
> I am choosing to go reverse rotation and the venerable OT-10 is not
> available in reverse grind.  ( OT-20 and up only )
>
>
>
>
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