Mazda Rotary Club

Cars by Model Type => 3rd generation RX-7's => Topic started by: steveobennet on January 03, 2010, 01:13:45 PM

Title: rear led lights
Post by: steveobennet on January 03, 2010, 01:13:45 PM
hey all i\'ve been looking at making myself some 99 spec rear lights but wanted something abit different. after looking at a few ideas i came up with what you see below. i\'ve only done one so far but should have the other side done in a month or so. all comments welcome

(http://img.photobucket.com/albums/v162/steveobennet/rx7/02012010154.jpg)

(http://img.photobucket.com/albums/v162/steveobennet/rx7/02012010155.jpg)

(http://img.photobucket.com/albums/v162/steveobennet/rx7/02012010156.jpg)

(http://img.photobucket.com/albums/v162/steveobennet/rx7/02012010157.jpg)

(http://img.photobucket.com/albums/v162/steveobennet/rx7/02012010158.jpg)

(http://img.photobucket.com/albums/v162/steveobennet/rx7/02012010159.jpg)

(http://img.photobucket.com/albums/v162/steveobennet/rx7/30122009150.jpg)

(http://img.photobucket.com/albums/v162/steveobennet/rx7/30122009146.jpg)
Title: rear led lights
Post by: ronaldlo on January 03, 2010, 01:15:08 PM
look good lad..
Title: rear led lights
Post by: ashc on January 03, 2010, 02:49:20 PM
very nice work chap!
Title: rear led lights
Post by: Kriss on January 04, 2010, 12:59:53 PM
Great work!!! I was thinking in doing something similar...
Title: rear led lights
Post by: Jono FD3 on January 04, 2010, 03:59:10 PM
It\'s a bitch of a job isn\'t it!! LOL
Looking good though matey!
Title: rear led lights
Post by: steveobennet on January 04, 2010, 07:17:07 PM
just abit tedious!
Title: rear led lights
Post by: m1tch on January 04, 2010, 08:34:46 PM
I think I saw a set of these sell on Dragon performance, looks simular :)
Title: rear led lights
Post by: MarkoFu on January 17, 2010, 08:25:32 PM
Awesome. Really nice work :)
Title: rear led lights
Post by: waqas_RX7 on January 18, 2010, 01:09:37 PM
Came out good ;)
Title: rear led lights
Post by: raceralexuk on January 19, 2010, 12:18:52 AM
Excellent work. I\'d be very interested to see how you\'ve done it!

Please :D
Title: rear led lights
Post by: steveobennet on January 22, 2010, 12:18:42 AM
its like spagetti junction, didn\'t take any pictures of the wiring, but it does take much to do it your self. main thing is just to take your time and measure, mark, pilot and drill everything properly. i\'ve done the other light now, so will get some pics up once i\'ve fitted it this weekend.
Title: rear led lights
Post by: darknight7777777 on January 22, 2010, 02:27:23 AM
They came out really nice.
 
What size LED\'s did you use?
Title: rear led lights
Post by: Jono FD3 on January 22, 2010, 07:23:50 AM
they look like 5mm dome top LED\'s?
Title: rear led lights
Post by: Speedworks on January 22, 2010, 09:39:37 AM
we need a decent write-up on this :-D Bring it on :-)
Title: rear led lights
Post by: darknight7777777 on January 22, 2010, 06:12:27 PM
I thought they were 10mm\'s
Title: rear led lights
Post by: paulm on January 23, 2010, 11:13:48 PM
very impressive :D great work! :)
Title: rear led lights
Post by: steveobennet on January 24, 2010, 11:43:28 AM
nope they are 5mm dome leds. when i get some free time this week i\'ll do a little write up. oh and i\'ve buggered up abit as there is a slight difference between the two but its not that noticable.
Title: rear led lights
Post by: Speedworks on January 24, 2010, 03:49:07 PM
VERY interested!!
Title: rear led lights
Post by: steveobennet on January 26, 2010, 12:23:54 AM
right, my original idea was to combine the nismo stlye lights on an r34 and the 99 spec rx7 ones. i drew a few diagrams before deciding on what you see above. the diameter of the brake lights are 70mm and the indicator 60mm. after a couple of hours of carefull marking out i drilled some 2mm pilot holes, the widened to 5mm

(http://img.photobucket.com/albums/v162/steveobennet/rx7/05122009123.jpg)

once both were done, sprayed the lenses satin black. and then wire up the leds with the help of alot of solder and crimp connectors.

(http://img.photobucket.com/albums/v162/steveobennet/rx7/11122009128.jpg)

then modify the existing loom for the lights, including adding a 200 resistor to the side lights wire to reduce the brightness abit. also load resistor were fitted  to the indicators to stop the from flashing too fast. and you have the finished result. also after failing with a hair dryer on a previous attempt, it is advisable to use the correct tools i.e a heat gun to seperate the lights, makes the job so much easier.

i\'ll get some decent pics soon, just need to give the car a dam good clean!
Title: rear led lights
Post by: trotter on January 26, 2010, 11:02:06 AM
Quote from: steveobennet;667847right, my original idea was to combine the nismo stlye lights on an r34 and the 99 spec rx7 ones. i drew a few diagrams before deciding on what you see above. the diameter of the brake lights are 70mm and the indicator 60mm. after a couple of hours of carefull marking out i drilled some 2mm pilot holes, the widened to 5mm


once both were done, sprayed the lenses satin black. and then wire up the leds with the help of alot of solder and crimp connectors.



then modify the existing loom for the lights, including adding a 200 resistor to the side lights wire to reduce the brightness abit. also load resistor were fitted  to the indicators to stop the from flashing too fast. and you have the finished result. also after failing with a hair dryer on a previous attempt, it is advisable to use the correct tools i.e a heat gun to seperate the lights, makes the job so much easier.

i\'ll get some decent pics soon, just need to give the car a dam good clean!


"ROFL" - ain\'t that always the way!!
Title: rear led lights
Post by: Speedworks on January 26, 2010, 11:20:07 AM
can you elaborate abit more on the electrical/technical side.

I\'m an electric noob so something schematic would be great :-)

Many thanks and great job!
Title: rear led lights
Post by: Bobbit on January 26, 2010, 11:33:23 AM
Quote from: steveobennet;667847also after failing with a hair dryer on a previous attempt, it is advisable to use the correct tools i.e a heat gun to seperate the lights, makes the job so much easier.

I used a bucket of very hot water and left the lights in that until they got soft, and just pulled them apart (very gently mind), took one side off, dropped them in the bucket and by the time i\'d got the 2nd side off the 1st was nearly ready.
Title: rear led lights
Post by: Nik da Greek on January 26, 2010, 12:14:17 PM
Quote from: Bobbit;667900I used a bucket of very hot water and left the lights in that until they got soft, and just pulled them apart (very gently mind), took one side off, dropped them in the bucket and by the time i\'d got the 2nd side off the 1st was nearly ready.

+1, hot water FTW!  A heat gun\'s great if you want to clean out all the sticky clag once they\'re separated, but I find it too aggressive and localised a heat for the actual separation process. Hot water and a couple of thin tyre levers/long screwdrivers plus loads of patience is the way forward :Thumbs-up
Title: rear led lights
Post by: steveobennet on January 26, 2010, 11:07:57 PM
Quote from: Nik da Greek;667917+1, hot water FTW!  A heat gun\'s great if you want to clean out all the sticky clag once they\'re separated, but I find it too aggressive and localised a heat for the actual separation process. Hot water and a couple of thin tyre levers/long screwdrivers plus loads of patience is the way forward :Thumbs-up


thats how i broke the first light, by prying it. heat gun constantly moving all the way round the rim, 4-5mins later just pulls apart with your fingers. plus you can get a heat gun these days for a couple pounds.

um well i bought my leds off ebay and to save myself loads of work i bought them pre-wired with resistors for 12v. its simple really as you are joining several wires to one them to the original loom. it also depends which leds you want for side lights and which for brake lights.
Title: rear led lights
Post by: Jono FD3 on January 27, 2010, 08:51:48 AM
You took the easy way out!!! Should have gone for the full on solder yourself like I did ;) then you know whay patience is! LOL

Jono
Title: rear led lights
Post by: steveobennet on January 27, 2010, 10:01:27 AM
you sir have the patience of a saint!:King

i\'ll stick to the easy way
Title: rear led lights
Post by: ENVYD on January 29, 2010, 07:56:50 PM
do you have a diagram of how to connect the led\'s to the normal loom?
Title: rear led lights
Post by: steveobennet on January 29, 2010, 11:35:27 PM
nope but, the brown wire is the side light live, the green the brake live, the green and red i think is the indicator live and the black is the earth. so all the negatives go together to the black, with you choosing which leds you want for the side light, brake etc. i would advise using and extra resistor in the side light wire to reduce the brightness so that people won\'t confuse it with the brake light. i used around a 200ohms one i think.......
Title: rear led lights
Post by: ENVYD on January 30, 2010, 09:18:59 AM
okay thanks mate, can you put up some links of what resistors you used for the tail lights and indicators?
 
thanks
steven
Title: rear led lights
Post by: ENVYD on January 30, 2010, 09:20:09 AM
ah also, how many led\'s have you gone through in total?
Title: rear led lights
Post by: steveobennet on January 30, 2010, 08:30:30 PM
i got a pack of resistors from maplin

http://www.maplin.co.uk/Module.aspx?ModuleNo=42453

something like those. think each red circle is 73 leds, and the orange is 49, so thats just below 200 per light unit. if you used 10mm leds instead of 5mm led you could use alot less.
Title: rear led lights
Post by: ENVYD on January 30, 2010, 08:43:53 PM
okay thanks mate, are those the ones you used as in the "200 and load resistors" to stop them flashing so fast?
Title: rear led lights
Post by: steveobennet on January 31, 2010, 10:44:15 AM
ah yes the load resistors to slow the flashing rate are different

these ones
http://cgi.ebay.co.uk/LED-Indicator-Bulbs-Load-Ballast-Resistors-fast-flash_W0QQitemZ310087024493QQcmdZViewItemQQptZUK_CarsParts_Vehicles_CarParts_SM?hash=item4832a07f6d
Title: rear led lights
Post by: darknight7777777 on January 31, 2010, 11:22:08 AM
I just got mine from the same company but I would say to anyone doing the led conversion is to use one load resistor for every indicator lamp being converted so you need 2x for Rear, 2x for Front and if you are like me 2x for Sides.