That different spark plug no real effect on compression ratio. My concern is
it position in relationship to the head or piston. Also those WD7t plugs
have a very large exposed center electrode that can glow a nice cherry red.
OK for engines designed for it. Also even with multiple ground electrodes
those plugs wear somewhat rapidly changing the gap. The platinum tip plugs
have worked very well for me over the years and although I have experienced
a few defective ones I think the 4477 are an ideal choice for the
Waterboxer.

And thank you for the support Scott.

Dennis

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Scott Daniel - Turbovans
Sent: Thursday, August 23, 2012 5:09 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: New-Spark-Plugcebo Effect

neither really..
as I said, I don't think the electrode style as any significant affect on
CR.
and someone would have to CC the combustion chambers to really find out.

and wbxr engines are not prone to pinging at all, and I think you are
worrying about nothing worry-able.

It's always fine to go with what Dennis recommends.
I don't always agree with what he says...but he is coming from considerable
experience  with good intentions.

like if he says 'the factory engineers planned it out really well' ..
yes.
And who ever has needed to worry about pinging in waterboxer engines ..
no one that I know of.
  'obsession' perhaps ?

like this ..if you are 'all worried' ..use dead stock.
OR ...try something like this and see how it goes.

that makes sense to you, right ?   I hope so.

On 8/23/2012 1:57 PM, Rocket J Squirrel wrote:
> "I think perhaps someone is worrying about something when it isn't
> necessary to worry about it."
>
> Scott, are you referring to ping that might occur due to low-ocatane
> fuel, or ping that might occur when using the non-standard plugs that
> Dennis is warning against?
>