Here's my 2 cents on this. While changing the spark on these vehicles
doesn't do much, it does some. But I think the spark plug isn't where people
should first change. The plug is the end of the line for the spark, where
does it come from, the coil, so upgrade the coil, either a higher power coil
or give it a booster pack coil. The spark has to go through the wires also,
so good wires also help.

I went to Nology (www.nology.com) and had them do a setup for my van. They
recommended a coil booster, Power Core (TM), and a set of there Hot Wires
(TM), custom fit and then some Beru Silverstone S7 spark  plugs. With this
setup, I did notice better power all around, smoother idle, better pickup
too. The plugs aren't cheap, $7-8 bucks a pop due to the silver electrodes,
the electrodes are bigger and the electrode extends further out from the
sleeve, the cermaic sleeve is larger too. Those things never fouled on me
ever, just needed some regapping every now and then. If you want power go
for this setup.    For life, eh, platinum is great for life, but for spark
strength it's not as good.

Joe

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com]On Behalf
Of G. Matthew Bulley
Sent: Wednesday, May 15, 2002 7:36 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: 3 probe plugs

No real irrefutable benefit.

Looks cool though. Similar to air-cooled airplane motors.

I used to use them, but couldn't see any mileage/performance increase
(same with the Bosch Platinum's) so I use the regular-Joe Bosch plugs
and pocket the coin.

Developing business and guiding change since 1996,

G. Matthew Bulley

Bulley-Hewlett

Corporate Communications

Business:  <http://bulley-hewlett.com/> www.bulley-hewlett.com

Alliance:  <http://www.ntara.com/> www.ntara.com

Phone: +1.919.658.1278

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@GERRY.VANAGON.COM] On Behalf
Of Jason Willenbrock
Sent: Wednesday, May 15, 2002 9:03 PM
To: vanagon@GERRY.VANAGON.COM
Subject: 3 probe plugs

hey all,

what is the benefit, if any, of the bosch 3 electrode spark plugs for
vanagons?  better fuel efficiency or what?  and how do you set the gap?
what should the gap be for a 90 vanagon?

jason

90gl

  _____

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