i've read the 89 pages, wooooh, what a good job !
I find the base for track original, because here in France, it's uncommon to see Audi A3 on track.
There is mainly Peugeot 205, 106 or Renault megane, clio
Thanks very much
It is an unusual base for a track car yes, and the Peugeots and Renaults you mention are also much more common here on track also! But we wanted to see what could be done, and this is where we ended up!
Been a bit slack lately with regards to updates. so here's a brief catch up:
One filthy boot floor awaiting a battery:
Centre bracket drilled out, sound deadening removed, cleaned up and painted quickly to keep it all the same colour, then I used some stick on foam to line the raised section where the battery will sit:
Battery bolted down:
Old setup under the bonnet:
New earth strap onto the bell housing:
To the original earthing point:
For now I've reinstalled the battery tray, it holds my catch can mount, and being plastic it's easily worked and used to bolt things to.
Junction box bolted into place:
Added a stud to hold the fuse box, and ran a length from the junction box to the starter.
Drilled the redundant top corner of the fuse box to locate on the stud:
And cover on and finished:
Going to the FIA cut off switch, it needs wiring in such that power spikes don't damage anything when you shut it off, and also it needs to cut the ignition power to ensure the engine doesn't run on on the alternator.
Something along these lines:
So I looped off the terminal back onto the spade terminal for the starter return:
The cut off came with a resistor, but I had to solder on some little wire tails to connect it up, then heat shrink'd them to keep things from contacting:
I also had to open up the fuse box and cut into the main ECU power feed to ensure the car cuts out, I tapped into fuse 29 for this. No decent pics as I HATE wiring and was concentrating.
Connections made:
And everything connected up at the switch:
Turned the key, and it all still works, turned the switch off whilst it was running, and it cuts the power instantly, and can be fired back up and everything still works, so I can only assume I've got it right!
Also, whilst I had it apart this morning, I ran a signal wire for my shift light, which taps into the coilpack signal wires.
I originally looked at taping into the loom at the coilpacks, but didn't like the idea due to heat, so I traced the wire back to the ignition amp and spliced into it there:
Just got to refit the dash panels tomorrow, then take it out for a spin and set up the shift light