CorvAircraft> cam timing on corvair?

[Clare Snyder]

----- 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 10:21 PM
Subject: Re: CorvAircraft> cam timing on corvair?


Michael:
If I remember correctly, the OT-20 produced a little less power below 3000
but a little above 3000.
I think it is comparable with the OT-10, but the OT-10 can also be advanced
up to 10 degrees for a further increase in power.
I would personally choose the OT-10 , but I don't think one could tell the
difference when flying
Brad,

I've got the "OEM1" Powerglide cam.
90 HP and 160 ft lbs at 3000 according to my :rough and ready" dyno stand.

Thanks for the reference on "Desktop Dyno".
The web site is a bit much to digest.
I can't get a simple price for it without reading for 1/2 hour to
understand what's available.
Too old & too simple minded, I guess.

Did you also check the OT-20 against the OT-10 to see if it can produce
the same, less, or better?
(I am assuming the evaluation was in the 2000-3400 rpm range, yes?)

regards
Michael Amick





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