Date: Wed, 22 Aug 2012 22:45:56 -0400
Reply-To: Dennis Haynes <d23haynes57@HOTMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Dennis Haynes <d23haynes57@HOTMAIL.COM>
Subject: Re: New-Spark-Plugcebo Effect
In-Reply-To: <5034E5E5.8000008@gmail.com>
Content-Type: text/plain; charset="US-ASCII"
Let's go a step further. In some areas premium can be 30 to 40 cents a
gallon more than regular. That can be a 10% difference. So do you really
want to increase your fuel costs by 10% to feel better about using wrong
parts or over advancing the ignition timing or increasing the compression
ratio or changing the gearing etc to get a little more performance (???).
VW really went out of their way to make the water boxer ping resistant and
to be able to work under load for extended periods without damage. The low
compression, relaxed ignition timing, valve lift/timing, piston design, even
the decision to stay with the full wet sleeves for cylinders and of course
the high revs all help these little engines accomplish so much.
Dennis
-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Rocket J Squirrel
Sent: Wednesday, August 22, 2012 10:00 AM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: New-Spark-Plugcebo Effect
I take back my question about higher-octane gasoline. Woke up this morning
realizing that it was a silly suggestion. The higher octane prevents
detonation caused by high compression, has nothing to do with where the
charge is ignited.
--
Jack "Rocket j Squirrel" Elliott
1984 Westfalia, auto trans,
Bend, Ore.
On 08/21/2012 06:45 PM, Dennis Haynes wrote:
> Yes, all the in line 4/Audi 5 engines used the "D" reach plugs.
>
> -----Original Message-----
> From: Rocket J Squirrel [mailto:camping.elliott@gmail.com]
> Sent: Tuesday, August 21, 2012 9:33 PM
> To: Dennis Haynes
> Cc: vanagon@GERRY.VANAGON.COM
> Subject: Re: New-Spark-Plugcebo Effect
>
> I have to assume that the VW engineers picked plugs with a certain
> reach as appropriate for the engine (1.9). Were longer reach plugs, such
as the "D"
> ones, available at the time?
>
> W/r/t the risk of increased ping caused by plugs firing closer to the
> top of the pistons, couldn't one compensate by using higher-octane fuel?
>
> Not that I'm a great big fan of buying even more expensive gasoline,
> but I do like the peppiness these plugs provide.
>
> --
> Jack "Rocket j Squirrel" Elliott
> 1984 Westfalia, auto trans,
> Bend, Ore.
>
> On 08/21/2012 05:49 PM, Dennis Haynes wrote:
>> I can't blame just those plugs for major failures but it can add up.
>> But when holding the heads in my hand I see that the extended reach
>> plugs just don't look right.
>>
>> Dennis
>>
>
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