Can S4 wiring handle 55/100 watt H4 bulbs?
07-25-03, 01:06 PM
#1
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Can S4 wiring handle 55/100 watt H4 bulbs?
Hey all, after I have my alternator rewired I was thinking of upgrading to some 55/100 watt H4 bulbs in my 7. I have run them on some of my bikes and I absolutly love the extra highbeam power. But I know the RX7 wiring is kinda shitty in someway and need to know if the headlights would need a reqire.
Thanks
-Justin
Thanks
-Justin
07-25-03, 03:45 PM
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I have 80/100's in my Hellas. No problems during the 3 years I have had them in. I have an '88 TII but I would think that the wiring size/type would be similar in all FC's, but don't hold me to that. I have run these types of lights in all sorts of cars from a 1973 Capri (German made) to my 7 with no problems. I have always heard the wiring on American cars could not handle the additional current draw, but I have never owned an American car so I can not speak for those applications.
07-25-03, 04:40 PM
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I have done the Hella H4 conversion, forgot the exact wattage of the bulbs included in the kit however in over 1 year have seen no ill effects.
87 TII
Dan
87 TII
Dan
07-26-03, 01:39 AM
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The stock wiring will probably handle it fine, but you won't be getting the best performace that's possible out of them, due to voltage drop through the smaller-than-ideal wires.
If you look at the wiring diagram you'll see it's very easy to upgrade the headlight wiring. Just run new wires in parallel with the old ones from the headlight fuse to the headlight relay to the dimmer relay to the headlights.
If you look at the wiring diagram you'll see it's very easy to upgrade the headlight wiring. Just run new wires in parallel with the old ones from the headlight fuse to the headlight relay to the dimmer relay to the headlights.
07-26-03, 03:05 AM
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When running high power headlights through stock wiring, always use a relay. I wouldn't add on high power accessories until you've upgraded the alternator. The S4 alternators really cannot handle add ons. The electric fan pulls about 15amps and it barely keeps things working.
