<VV> Setting the Timing

[J R Read_HML]

"Ping" is the sound you hear during pre-detonation.  So, they are 
essentially the same thing.  Most noticeable during acceleration and if you 
drive along the lane near a retaining wall and wind up the engine, you can 
hear it in the echo off of the wall.  Sounds a bit like loose marbles in the 
combustion chambers.  Dual exhaust?  Try it on both sides of the road 
(divided highway) and/or under a bridge.

If your engine is less than a 110HP, you may not need 93 octane.  Your call 
on that.

Later, JR


----- Original Message ----- 
From: "Stephen Upham" <contactsmu at sbcglobal.net>
To: <virtualvairs at corvair.org>
Sent: Tuesday, June 01, 2010 2:15 AM
Subject: <VV> Setting the Timing


> The next question is : How does one know that detonation is
> occurring?  I  that believe it is a sound (pinging ?), but I have
> never experienced it.

>
> StephEn
>