ernstmarkus Posted November 16, 2012 Share Posted November 16, 2012 Hi!I've heard a lot of Spitfire users enhanced the wiring harness for some extensions like electrical cooling ventilator or something else and made a harness by themselves.Because the wiring harness at my Spitfire MK3 isn't good anymore I decided to make my own harness and enhance it with a few fuses more then the three origins.Does anybody has a wiring plan and the used cable diameters?Any suggestions are welcome!Greetings ErnstMarkus Quote Link to comment Share on other sites More sharing options...
RedRooster Posted November 16, 2012 Share Posted November 16, 2012 Personnaly i would buy a new harness, then add in whatever else i needed, that way at least most of the colour codes are right. Use heatshrink & a permanent marker to identify the new wires.RR Quote Link to comment Share on other sites More sharing options...
ernstmarkus Posted November 16, 2012 Author Share Posted November 16, 2012 Yes that would be a possibility.BUT:- I still have only 3 fuses- I have to unpack the harness and after adding the extras I have to pack it again (same work as by a self made harness)- other disadvantages Quote Link to comment Share on other sites More sharing options...
RedRooster Posted November 16, 2012 Share Posted November 16, 2012 I didn't say that, you can fuse up whatever circuits you want, but i'd start with a new harness as a basis.RR Quote Link to comment Share on other sites More sharing options...
Rubce Posted November 16, 2012 Share Posted November 16, 2012 HiI made my own harness from scratch for our Stag and intend to do the same for our GT6 when I get to that stage in the resto. It's a straight forward activity provided you can read a wiring diagram!On the Stag I relocated the fusebox, relays and electronic ignition inside the car cabin. The original 12 position bakerlite fusebox was replaced with a 24 spade fuse type. All the cable routes were moved away from the engine exhaust manifolds etc to limit the heat exposure. Mark each wire with an individual ident at each end which makes fault finding so much easier at a later date. I also used modern relays and put relays in on the headlights etc to remove the load off the original switches.On the GT6 I will be moving all the relays etc off the bulkhead ledge and putting them behind the parcel shelf to help keep the weather off them.VWP sell almost everything you will require.http://www.vehicle-wiring-products.eu/VWP-onlinestore/home/homepage.phpHave funBruce Quote Link to comment Share on other sites More sharing options...
RedRooster Posted November 16, 2012 Share Posted November 16, 2012 A second recommendation for VWPRR Quote Link to comment Share on other sites More sharing options...
Falkon Posted November 17, 2012 Share Posted November 17, 2012 All kind of wiring diagrams.http://www.spitfiremk2.co.uk/ Quote Link to comment Share on other sites More sharing options...
ernstmarkus Posted November 17, 2012 Author Share Posted November 17, 2012 Thanks for that link, I didn't know it.Does anybody have a individual wiring schematic of his own "optimized" wiring harness (especially with more fuses?) Quote Link to comment Share on other sites More sharing options...
JensH Posted November 17, 2012 Share Posted November 17, 2012 take a look here:http://club.triumph.org.uk/cgi-bin/forum10/Blah.pl?m-1229790537/s-555/(and further down) Quote Link to comment Share on other sites More sharing options...
ernstmarkus Posted November 21, 2012 Author Share Posted November 21, 2012 Thanks for the help!But one problem's still alive: All of the wiring schematics I've had a look are without any cable diameters.Can anyone tell me the diameters or have a plan where it is drawn in?And, please, don't give me the advice of goin' out and measure the cable diameter....Thanks again!ErnstMarkus Quote Link to comment Share on other sites More sharing options...
piman Posted November 21, 2012 Share Posted November 21, 2012 Hello Ernst, if you look at the cable section of the Vehicle Wiring Products website, it lists cable sizes, their application and current rating. It can be of benefit to go a size up in cable for the headlights as it reduces voltage drop so improving light output. Alec Quote Link to comment Share on other sites More sharing options...
MK3 Posted November 21, 2012 Share Posted November 21, 2012 Be careful not to increase cables / sizes too much. If you make the wrapped harness too thick it may not go through grommets so you need to plan Quote Link to comment Share on other sites More sharing options...
Dannyb Posted November 21, 2012 Share Posted November 21, 2012 ou can go for the more modern Thinwall cable . Go to Vehicle wiring website and read up on it. Quote Link to comment Share on other sites More sharing options...
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