Headlight Wiring Harness, is this good enough?

[Eric Sanborn]

Matt Evans wrote:

> 
>
>One other comment - there is extra cost and complexity in running more
>relays and fuses, but otoh, it is uh.. Non optimal if losing a single fuse
>or single relay means you lose BOTH headlights.  The cats-meow setup is
>separate fuses and relays for each primary bulb (i.e. 4 relays and 4 inline
>fuses to cover drivers low, drivers high, pass low, pass high).  Separating
>loads out like would let you get away with running more but smaller
>conductors.  
>  
>

I agree with Matt.  When I made my harness (for H4/H1 setup) I used a 
relay for every filiment.  I only however used 3 fuses instead of six.  
I seem to think that I did the fuse stuff wrong since I paired off 
running lights together.  You could likely fuse each side of the car 
separately and get the redundancy you need. You shouldn't (like noted in 
an earlier post) need high and low at the same time for more than a second.

Just to put a vote in I used 12 gauge and a combination of 30 and 40 amp 
relays as I was scavaging from harnesses out of other cars.  I am still 
running stock wattages since I had the bulbs already.  As they go I will 
upgrade.  I ran H4s with the same setup in my Rabbit for 4 years with 
80/100 bulbs and no ill effects.

-- 
Eric Sanborn
'85 4ktq

http://sofadog.net/4ktq/