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1992 940 Turbo adding head lighting relays. Looking for specifics

posted by  MichaelYount on  Wed Apr 22 19:18 CST 2020
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I did this mod to my 82 242 almost 20 years ago. I have Euro-spec Hella 4x6 headlights - two hi/lo and two high beams. At the time I bought 4 30A relays from Radio Shack for about $5 a piece. I used 1 relay for the low beams and 1 relay for the high beams on each side -- so, 2 relays on each side. I used 10 gauge from my 12V+ distribution point to power each relay. I used 12 gauge from the relay to the headlights. I used 10 gauge to ground everything. I kept all runs as short as possible. I tested all connections with my DVM and showed 0.00V drop on all connections. I'm getting 14.4V at the headlight at idle. SIGNIFICANTLY increased the lumen output of all lights. I just bought 5 30A relays with the plug branded Bosch for $12 on ebay. Yeah - probably made China.

Have fun with it!






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