I am reasonably new to mini z (only had one 2weeks). I know there are pre made light kits out there but they are very expensive . I know alot of people have also made their own.
I decided to have a go at making my own for my Z. I'm not too sure how others have done it but here is what I did.
This might be hard to describe but I will try
The basics are probably the same as most peoples. I've used orange and yellow 3mm LED's at the back (they seem to be the brightest of the colored leds and still look ok through the red lense on my Skyline.
For the headlights I've used high intesity white LEDs.
The bits which may be different are that I have utilised a PBC mount 4 way "DIP" switch and a "mercury" tilt switch.
This allows me to have total control over switching individual lights on or off , turning the whole light set off and easily changing whether I want the 2 outer or the 2 inner lights to work as brake lights.
For those who dont know , a mercury switch is a small peice of sealed glass tube a little under an inch long with a blob of mercury inside which can flow from one end of the tube to the other depending on what angle the switch is at. At one end of the switch are 2 wires which are open circuit if the "blob" is away from the wire end and closed circuit if the blob is at the wire end. Basically you can hook the switch up to turn lights on or off depending on the position of the mercury inside the switch.
By mounting the switch somewhere inside the body of the car at an almost horizontal position you can adjust it (i just mounted it with blu tak to make it simple to adjust) so lights are either on or off when at a complete stop.Adjusting the switch so the mercury only just touches the wires when stopped will make the lights be on .Adjusting the switch so the blob is away from the wires will have them off when stationary .Any foreward momentum will make the mercury flow to the other end thus turning the lights offwhile accelerating or moving at a constant speed. if the car slows down at all while moving the slight change in foreward momentum will allow the mercury to flow back down and turn the lights back on. thus giving a brake light effect.
It is actually much simpler than it sounds and seems to work really well.
I have also changed the way the main on off switch works so that power is completly taken away from the circuit board in the car when the main car switch is off. (basically remove the 2 white wires from the switch and solder them together and then chop one of the battery wires and run them through the switch instead) I have picked up the voltage for the light circuit from the point where the red and black wires from the batteries solder onto the circuit board. With the change in the way the switch is wired when I turn the car off everything including the lights turn off. With the car turned on I can use the "DIP" switch to turn all the lights off if I want to. (you also need a small connector of some description to connect the car body wiring to the main car. I have just temprorarily used 2 9v battery clips together for now.)
Basically the whole thing fits on a small circuit board (about 1 inch by 1 inch) .I mounted the resistors and Dipswitch on the PCB itself. The mercury switch I added about a 4 inch length of wire to so I could experiment with mounting positions inside the car.
Hopefully the circuit diagram will help explain things a little better.
*note ... this circuit has so far worked totally fine for me but I take no responsibility if anyone tries this and things fry or whatever :-)
I will post pics of the car etc when i get a chance. DIP switch and Mercury switch pics will follow for those unsure what they are.
here is the circuit diagram.Sorry for the poor quality.I actually drew the diagram in a program and cant get it to save in a suitable format for posting here.So a photo will have to do for now.
here is a quick speil to go with the diagram....
SW 1 – SW 4 is a 4 way PCB mount “DIP” switch.
Led 1 & Led 2 are used for Brake lights.
Led 3 & Led 4 are used for Tail lights
Led 5 & Led 6 are “White” headlights.
SW 1 is used as a master on/off switch
SW 2 is used to switch LED 1 & 2
SW 3 is used to switch LED 3 & 4
SW 4 is used to switch LED 5 & 6
The mercury switch is used to create the Brake light effect on either LEDs 1 & 2 or 3 & 4 . The angle that the switch is placed will determine how sensitive the brake lights are and if they stay on or off once the car is at a complete stop.
If SW 2 and SW 3 are both closed LED 1 , 2 , 3 ,4 will be on and remain on.
If SW 2 is closed and SW 3 is open LED 1 & 2 will stay on and LED 3 & 4 will be switched by the mercury switch.
If SW 2 is open and SW 3 is closed LED 3 & 4 will stay on and LED 1 & 2 will be switched by the mercury switch.
SW 4 turns headlights on or off.
Please note. I have tried this circuit on my car and it seems to work fine. BUT I take no responsibility if anyone tries this and something happens. Feel free to ask any questions and I will answer them if possible. firstname.lastname@example.org
my mini-z lights