Brown wire surgery for 80 spider

Gotta love that wiring . . .
Post Reply
kolls
Posts: 141
Joined: Wed Oct 28, 2009 3:53 pm
Your car is a: 1980 fiat spider
Location: Carthage, MO

Brown wire surgery for 80 spider

Post by kolls »

Okey, Do you or do you not have to do the brown wire surgery on 80 F.I. spider .
adrians
Posts: 851
Joined: Tue Jan 15, 2008 6:07 am
Your car is a: 1981 Spider Turbo - missing the turbo
Location: Sydney - Australia

Re: Brown wire surgery for 80 spider

Post by adrians »

Kolls,

When I asked the same question a while ago .... I got a big NO from Ron (rlux4), I think, it's not required because of the additional wiring circuit on the F.I. cars.



Adrians
THE FLEET
2014 Abarth "SS"
1981 Spider 2000 (Legend Industries Turbo - minus the Turbo)
1978 X1/9 1.3 Dual IDF 40's, Coupe Cam, Allison Header/Exhaust
1971 128 Sedan 1100cc, Coupe Cam/Headers
Motokhana Special 127 rear engined Rail 903cc
lanciahf

Re: Brown wire surgery for 80 spider

Post by lanciahf »

Another good idea is to remove the load column switch, caused by the headlights. By adding two relays for the lights.

See http://users.chartertn.net/jseabolt/elect.htm
rlux4
Patron 2022
Patron 2022
Posts: 4211
Joined: Thu Jan 10, 2008 8:32 pm
Your car is a: 1982 2000 Spider
Location: Granite Falls, Wa

Re: Brown wire surgery for 80 spider

Post by rlux4 »

My opinion is that it couldn't hurt, but I don't see what improvement it would make. We already have the extra brown wire coming directly from the batter to the dual relay that takes a lot of load off the brown wire at the ignition switch. I'm a carpenter, not an electrical engineer, so I base my opinion on how my wipers run at normal speeds even with the headlights on, which is a law in Califonia.
Ron
Ron Luxmore
rlux2n2@gmail.com
'82 2000 Spider: after 26 years between Spiders.
kolls
Posts: 141
Joined: Wed Oct 28, 2009 3:53 pm
Your car is a: 1980 fiat spider
Location: Carthage, MO

Re: Brown wire surgery for 80 spider

Post by kolls »

Okey no need for the brown wire surgery on my 80 F.I. Use lots of dielectric grease and new connectors and clean the ground connections. But i did notice the white connector from the ignition switch has a brown spot on it where it looks like it has got hot. I read they say to cut that out and solder them connections. Also, i understand the headlight relay trick, but there are 2 ways out there to do that.

1. Put the new relays under the hood and run 12 awg to the buckets. (which i believe you would do this if you want to put different headlights in that pull more amps.)
2. Put the new relays by the fuse box. ( which seems to be the easiest and the best way if you are going to use stock headlights.)

I know, I know, my buddies always give me a hard time, that i over analysis everything. But i like making informed decisions. :lol: :lol: :lol:
spider2081
Patron 2024
Patron 2024
Posts: 3015
Joined: Fri Jan 27, 2006 11:45 pm
Your car is a: 1981 Spider 2000
Location: Wallingford,CT

Re: Brown wire surgery for 80 spider

Post by spider2081 »

I prefer installing a new fuse block on the drivers side fender well under the hood. I feed the fuse block directly off the alternator with a #10 wire. The fuses are for the new headlight Hi and lo beam relays mounted near to the fuse block. I also install a relay for the starter solenoid and one for the fan. The fan relay is used because there is a fan bypass switch installed below the radio. I plan to install another pair of relays so the windshield wipers also bypass the ignition switch.
I installed my relays 5 years and 15,000 miles ago and have not had a problem with corrosion etc. I felt it was easier to install everything there rather than behind the fuses. The fan bypass switch wires are the only ones I had to pass through the firewall.
Post Reply