From: rehman.ditta@bt.com Subject: [clubgti] ] Headlamp High Powered Loom ! This mod is DEFINITELY REQUIRED. Why? Because if you get your voltmeters out and just check the voltage on the standard headlight connectors. Main headlight is 12.5V and high beam is only 10.2V !!! A pure voltage drop!!!!! I knew there was a voltage drop but not THAT much ! The standard loom is poor. I don't know if it was just my car or all VW's, because of this, not even your standard bulbs are being lit up to the max. You're losing about 8W of power on full beam PER BULB ! With the mod, you get a full 13.7V for both main and high beam ! So even your standard bulbs will be brighter. Another advantage is the power is taken direct from battery, the rest of the cars electric's have less strain so they have more power. - electric windows, bass on full etc etc. Its been safely tested for couple of years on long motorway journeys. At first I was a bit dubious as to whether the system would heat up. But not even warm! The standard loom gets warm but this was freezing even after 5 hours continuous use! Thats why best to use 30 Amp gear rather than 20 Amp which BRM (should I say that) provide. Dead easy to do: Kit ---- 30A Wiring (6 meters) - 4 quid Battery connectors - 3 quid 30A Fused relays * 2 - 3.5 each (Get these so you dont have to buy inline fuse holders) 2 headlight connecters from scrappies (Off any big Audi or BMW cos they're 30 Amp standard) Thats it ! This kit is rated for up to 180W main beam and 180W high beam bulbs. Giving a total of 720W lighting power! (Standard is just 60/55*2 = 220W - Voltage drop = 204W) I've got 100/80W bulbs. Any more and you might get pulled so best not to go over 100, or 120W maximum. Wiring is a piece of cake. Just got to be careful how you wire the relay up. Looking at the relay pins Pin 30 - common goes to the battery + Pin 84 - open feed, switch which will go to the connectors Pin 85 and 86 power this will be taken from the original headlamp connector. NOTE : Don't cut your original headlamp connectors ! Headlamp connector wires Looking and starting from the left standing in front of the car the top of the reversed T shape has yellow (low beam) and if you remove the plug from the lamp and look at it with the wires facing you the right has white (high beam) and the left has brown (neagative). Relay one (High beam) Pin 30 goes to the battery Pin 84 goes to the white wire on the new connector (the one you've got from the breakers) Don't forget you've got to parrallel it for the otherside. Pin 85 goes to the original connector white wire (I used the passenger side headlamp connector, nearest to the wire. Pin 86 goes to the original connector brown wire (I used the passenger side headlamp connector also. Relay two (low beam) Pin 30 goes to the battery Pin 84 goes to the yellow wire on the new connector (the one you've got from the breakers) Don't forget you've got to parrallel it for the otherside. Pin 85 goes to the original connector yellow wire (I used the passenger side headlamp connector. Pin 86 goes to the original connector brown wire (I used the passenger side headlamp connector. The only wire missing from the (breakers) connector is the brown, just take the feed from negative terminal.