Region: NWR / Oregon
Car #: 88
Year : 95 Posts: 2000
We have some lights for our 24 hour enduro car, the original headlights are long gone, but I'm wondering a good way to wire them up. We're planning on 3 or 4 55W H3 lights we have handy (60W max each is the rule) so either way it will pull more load than stock. I was thinking about wiring them into the stock circuit with the extra light(s) running in parallel and using a bigger fuse. Stupid idea?
-------------------- Keith Novak (Will work for tires)
Car #: 54!
Year : 90' Posts: 1907
I bought some PIAA lights awhile back and wasn't sure what to do either. They came pre-wired with a big ol' relay and switch already. The directions said to connect power and ground directly to the battery, so that's what I did (wasn't on a miata so the battery was up front). I think you could probably also get direct power from the battery off of the starter as that's where the positive cable goes. Just make sure the lights arent on when you start the car... maybe?
I think I'd start with a smaller fuse and replace along the way as the load amperage blows it to determine what is the minimum amps you will need to compensate for. Maybe that will tell you whether you might be looking at hot circuit problems in the future.
Car #: #71
Year : 1990 Posts: 656
I've been using the A/C relays & wiring for auxillary lights this year. That way they're already on a seperately fused circuit & the relays (re-)mount easily, so all you need to do is tie into the relay input & outputs
Since the original headlights are gone, you should be able to run some of the lights off that circuit... whether you should run the third or fourth on the same circuit depends on your comfort level.
Tying any auxiliary lighting directly to the battery may cause you some headaches if they by-pass the kill switch & they find that in tech.