<VV> valve seats revisited (Engine Braking)

[jvhroberts at aol.com]

 OK, after some reflection, that may be a bit too conservative. I do know, once CHT reaches 400F or more, detonation and preignition become a LOT more prevalent here. And no doubt, all that knocking will beat on things in a way that not only kills power, but engine parts as well, and seats come to mind...

 

John Roberts
 

 

-----Original Message-----
From: jvhroberts <jvhroberts at aol.com>
To: dkeillor <dkeillor at tconcepts.com>
Cc: virtualvairs <virtualvairs at corvair.org>
Sent: Thu, May 10, 2012 3:07 pm
Subject: Re: <VV> valve seats revisited (Engine Braking)



 Anything above 300F. IMHO...

 

John Roberts
 

 

-----Original Message-----
From: Dave Keillor <dkeillor at tconcepts.com>
To: jvhroberts <jvhroberts at aol.com>
Cc: virtualvairs <virtualvairs at corvair.org>
Sent: Thu, May 10, 2012 9:30 am
Subject: Re: <VV> valve seats revisited (Engine Braking)


At what CHT would you consider the temperature to have entered the "too high" 
zone?


Dave Keillor


On Wed, May 9, 2012 at 1:46 PM,  <jvhroberts at aol.com> wrote:


 Again, a sample of 1 isn't meaningful. IMHO, the CHT on all Corvair engines is 
too high. Run one hard, and it's ALWAYS too high.



John Roberts



 
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