Wiring

[Jerseyjohn]

Calling Penelope stopit.
Rewiring on again

[Penelope Stopit]

Hello

Will gladly help as and when needed

Post here what you're intending to achieve and we can go from there

[Jerseyjohn]

Thank you.
I am going to rewire my TVR S1.
I am trained as an electrician but car electrics have some strange things.
I want to have a modular fuse board with all the relays etc in one place, cut down in as many plugs as possible.
I will have HID lights and LED one for rear cluster and indicators. I want to take the old lucas dip dim relay out and use modern type ones only. So they all fit in to modular system.

I have seen and copied your alternator to starter wiring, but how does this charge battery.

I will have a lug or splitter to feed each fuse and use correct size wire for each circuit. Would this be fed by a relay that is energised after starting engine?

[Penelope Stopit]

If you mean the below starter circuit diagram taken from here https://www.pistonheads.com/gassing/topic.asp?h=0&...


The main alternator battery supply isn't shown on the diagram, the diagram was used to show how the alternator warning light circuit can be used to protect the starter from accidental operation, possibly improve solenoid crank circuit voltage and lower alternator cut-in speed

[Penelope Stopit]

There's also this topic https://www.pistonheads.com/gassing/topic.asp?h=0&...

Information for a rewire taken from the above link reposted below

Anything can be changed to achieve what you want, wiring for HID's can easily be added

Take a look and have a think about what circuits are needed and what circuits need removing

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Fuse 1 RH Main (Supplied From Main Beam Relay)

Fuse 2 LH Main (Supplied From Main Beam Relay)

Fuse 3 RH Dip (Supplied From Dip Beam Relay)

Fuse 4 LH Dip (Supplied From Dip Beam Relay)

Fuse 5 RH Side/Tail/Number Plate (Supplied From Side Light Relay)

Fuse 6 LH Side/Tail/Number Plate (Supplied From Side Light Relay)

Fuse 7 Illumination (Supplied From Side Light Relay)

Fuse 8 Rear Fog Lights (Supplied From Fog Light Switch That's Supplied From Side Light Relay or Dip Beam Relay)

Fuse 9 Wipers/Washer (Ignition Supplied From Main Ignition Relay To Wiper Switch And Motor For Park)

Fuse 10 Blower Motor (Ignition Supplied From Main Ignition Relay To Blower Motor or Blower Switch)

Fuse 11 Instrument Cluster (Ignition Supplied From Main Ignition Relay)

Fuse 12 Brake/Reverse/Indicator Lights (Ignition Supplied From Main Ignition Relay To Switches And Hazard Switch)

Fuse 13 Heated Screen (Supplied From Heated Screen Relay)

Fuse 14 Radiator Fan 1 (Supplied By Ignition And Sensor Controlled Relay Fan 1)

Fuse 15 Radiator Fan 2 (Supplied By Ignition And Sensor Controlled Relay Fan 2)

Fuse 16 Fuel Pump (ECU Switched Supplied From Fuel Pump Relay)

Fuse 17 ECU (Ignition Supplied From Ignition Switch)

Fuse 18 ECU (Bat +ive)

Fuse 19 Horn (Bat +ive Supplied From Horn Relay)

Fuse 20 Cigarette Lighter,Interior Light,Hazard Flasher, Clock, (Bat +ive)

Fuse 21 USB (Bat +ive)

Fuse 22 Central Locking (Bat +ive)

Fuse 23 Boot Release (Bat +ive)

Fuse 24 Windows (Bat +ive) or (Ignition) And (Perhaps A Relay)?????

Fuse 25 Safety Fuse (Bat +ive To Side/Headlight Switch And Main Beam Flash Supply At Column Switch)

Fuse 26 Safety Fuse (Ignition Supplied From Main Ignition Relay To Heated Screen Switch)



1 X 100 AMP - Ignition Relay

Relay 1 - Main Beam

Relay 2 - Dip Beam

Relay 3 - Side/Tail/Illumination

Relay 4 - Heated Screen Relay

Relay 5 - Radiator Fan 1

Relay 6 - Radiator Fan 2

Relay 7 - Fuel Pump

Relay 8 - Horn

Relay 9 - Windows (See Fuse 24)?????

Relay 10 - Flasher Unit 2 And 4 x 21 Watts (Perhaps + 2 x 5 Watts For Side Repeaters)

• ******Fuel Injection Relay********???????

[Penelope Stopit]

Then made some alterations to suit what was and wasn't needed after the following discussion

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Penelope Stopit said:

magpies said:

Looks good Stoppedit

minor comments / probable changes to keep the totals down to that I've alreadypurchased

I'd supply the dash illumination from a side light fuse - almost all LED
probably not worth fitting relay to side/illumination as very little current draw and switch is designed for no relay
Rad Fans - agaon I'd keep with original Sierra Cossy design of only one fuse and relay
Car does not have electric windows
probably require a boot solenoid relay
Fogs supplied by side/head switch so not on with sidelights
don't know yet if injectors needs a fuse/relay but will check with Jag wiring diagram

If I do require more fuses / relays I will obtain

Once again cheers Penelope

Glad to be of help

Tomorrow I will ditch....

Side Light Relay & Illumination Fuses

Rad Fan Circuit 2

Windows Fuse

• *And Add***....

To Diagram Rear Fog Lights Switch connects to Side/Head Switch powered when headlights are on and switches supply to fuse

To Diagram****Boot Release Relay**** Needs to be fitted in the boot somewhere as this method uses least wiring, the relay only needs the fused supply from front to back

I don't know what setup you have at present for switching the boot release relay, if you are only operating it from the back you could run a cable from front to back and have a dash button

Let me know what you want me to show for the boot release

The thing Is I've started so I'll finish.....all being well when the jobs completed you will have a correct diagram of the finished wiring for the relays and fuses

I hope you now see the benefits of fusing the outputs from the relays rather than the inputs to the relays

Cheers, time for a beer

---

Then posted the following......

I forgot about the starter relay in the above diagram and have now added it

Fuse 1 RH Main (Supplied From Main Beam Relay)

Fuse 2 LH Main (Supplied From Main Beam Relay)

Fuse 3 RH Dip (Supplied From Dip Beam Relay)

Fuse 4 LH Dip (Supplied From Dip Beam Relay)

Fuse 5 RH Side/Tail/Number Plate

Fuse 6 LH Side/Tail/Number Plate

Fuse 7 Illumination

Fuse 8 Rear Fog Lights (Supplied From Fog Light Switch That's Supplied From Side/Head Switch)

Fuse 9 Wipers/Washer (Ignition Supplied From Main Ignition Relay To Wiper Switch And Motor For Park)

Fuse 10 Blower Motor (Ignition Supplied From Main Ignition Relay To Blower Motor or Blower Switch)

Fuse 11 Instrument Cluster (Ignition Supplied From Main Ignition Relay)

Fuse 12 Brake/Reverse/Indicator Lights (Ignition Supplied From Main Ignition Relay To Switches And Hazard Switch)

Fuse 13 Heated Screen (Supplied From Heated Screen Relay)

Fuse 14 Radiator Fan (Supplied By Ignition And Sensor Controlled Relay)

Fuse 15 Fuel Pump (ECU Switched Supplied From Fuel Pump Relay)

Fuse 16 ECU (Ignition Supplied From Ignition Switch)

Fuse 17 ECU (Bat +ive)

Fuse 18 Horn (Bat +ive Supplied From Horn Relay)

Fuse 19 Cigarette Lighter,Interior Light,Hazard Flasher, Clock, (Bat +ive)

Fuse 20 USB (Bat +ive)

Fuse 21 Central Locking (Bat +ive)

Fuse 22 Boot Release (Bat +ive)

Fuse 23 Safety Fuse (Bat +ive To Side/Headlight Switch And Main Beam Flash Supply At Column Switch)

Fuse 24 Safety Fuse (Ignition Supplied From Main Ignition Relay To Heated Screen Switch)



1 X 100 AMP - Ignition Relay

Relay 1 - Main Beam

Relay 2 - Dip Beam

Relay 3 - Heated Screen Relay

Relay 4 - Radiator Fan

Relay 5 - Horn

Relay 6 - Starter

Relay 7 - Fuel Pump

Relay 8 - Boot


Relay 9 - Flasher Unit 2 And 4 x 21 Watts (Perhaps + 2 x 5 Watts For Side Repeaters)

• ******Fuel Injection Relay********???????

Edited by Penelope Stopit on Friday 17th July 20:44

[magpies]

Hi jersey (I love your island and have visited several times for the car rally, including last year)

I used Penny's info as a guide during my recent engine change and rewire

I used CarBuilderSolutions for the modular relay, fuse and distribution units. (also available from other similar outlets)

I also changed the location of these from behind the glovebox.

Check out my threads - Cossy sold and Jag bought ...... and also........ Bird on a wire........ which are the 2 mentioned by Penny

My S1 is now on the road - done 700 miles since 1st March

[Jerseyjohn]

Thanks Gents, i will make a drawing and if I have any more questions will be in touch.

Appreciate help.

[Penelope Stopit]

Ok then

Being an electrician you're very likely ok with the colours and sizes of cables needed

[Jerseyjohn]

Yes. Going to use the thin walled cable,car equivalent to tri rated cable.

[Penelope Stopit]

Jerseyjohn said:

Yes. Going to use the thin walled cable,car equivalent to tri rated cable.

Nice, less weight, thinner loom = Faster Car

[Penelope Stopit]

The following were drawn for a Ford Escort Mk 2, don't know if they will be of any use

[Jerseyjohn]

I have started with a drawing.
I have not decided on fuse number allocation yet, but is the rest of the circuit ok?

[Penelope Stopit]

[Jerseyjohn]

Thank you amended, been a busy a afternoon.

[Jerseyjohn]

[Jerseyjohn]

[Jerseyjohn]

[Penelope Stopit]

Is there a warning light for hazard flashers built into the switch, I think there is but not 100% sure ?????

If there is a warning light it will need an earth

Edited by Penelope Stopit on Monday 20th July 08:55

[Penelope Stopit]