Date: Tue, 10 Nov 2009 15:47:34 -0800
Reply-To: David Marshall <mailinglist@FASTFORWARD.CA>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: David Marshall <mailinglist@FASTFORWARD.CA>
Subject: Re: queston on H4 55/60w bulb to fit stock bulb socket
In-Reply-To: <4AF9EF7F.4020300@hughes.net>
Content-Type: text/plain; charset="iso-8859-1"
In Canada and the USA headlights must be between 56 and 137cm, measured at
the center, from the ground. Tail lights 38 to 183cm and DTRLs 30 to
211cm
David Marshall
VW Adventure Driver and BMW Adventure
Rider
http://www.hasenwerk.ca
On Tue, November 10,
2009 14:55, Marc Sayer wrote:
> Yeah this is something owners of
those jacked up 4WDs never seemed to be
> able to get their minds
around. A headlight system is designed to be
> spaced within a
given minimum and maximum distance above the road
> surface. Get
outside that zone and no amount of reaiming will fix the
>
problems with the patterns produced. Some of the issues involved are
> simply insoluble. You can at least partly address the high vs low
beam
> pattern incompatibility by going to a 4 headlight system,
where you can
> aim the dedicated high beam housings independently
of the combo beam
> housings. Then, if your bulbs are up to it,
you can simply disconnect
> the high beam connectors to the combo
bulbs so you get high beams only
> from the dedicated high beam
bulbs. This lets you aim each set of
> housings for best effect
for that specific beam. Personally, I've always
> preferred the
light patterns from round headlights myself, assuming you
> get
good quality headlight housings and bulbs, and makes sure the bulbs
> are supplied adequate electrical power. It's unscientific for
sure, but
> to me round headlights always seem to give a better
pattern than the
> various rectangular versions out there. And as
for those model specific
> "aerodynamic" headlight
housings, they range from down right awful to
> pretty darn good,
depending on the vehicle. But with them, you get what
> you get.
No way to improve them unless there is an E-code version you
> can
convert to. We did this with my wife's Grand Cherokee and the
>
improvement was simply astounding. Stock the headlights were almost as
> bad as the 86+ Vanagons. With the E-code version of the
headlights
> installed, it had amazingly good illumination.
>
>
>
> Al Knoll wrote:
>> The
reflectors have an optimum above the roadway height so that both
>> beams
>> are correctly aimed. The headlight
position oo the vanagon is above
>> that
>> design
height.
>>
>>
> --
>
> Marc
Sayer
> Journalist, Photographer, Dog Trainer (APDT member
#062956)
> Board member - Western States Great Dane Association
> Director of Operations & Training - Deaf Dane Rescue Inc.
> Oakridge, OR USA
>
> My Homepage -
http://gracieland.org
> Deaf Dane Rescue - http://deafdane.org
> Western States Great Dane Rescue Association - http://wsgdra.org
> RescueWatchdogs - http://rescuewatchdogs.org
> Association
of Pet Dog Trainers - http://APDT.com
>
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