im about to rewire my fuel pump on the esc cos,is 17.5 amp cable ok?

 

Yes should be fine, try and get a some big strand stuff if you can.

 

go for slightly larger say 25 amp.

as chops has said, dont go loads of fine strands, but dont go for a few thick ones.

something like 19/0.3 or something like that.

 

Thanks Ryan

 

this is something i need to do too.

Ryan where's that seatbelt holder dude?

 

i got it here mate.

pm me your address.

 

cheers guys

 

is the thinwall type of cable ok?

 

yes thinwal is fine, as long as its good quality cable and a good enough amp and strand rating then it will be fine

 

will this do ref25? http://www.vehicle-wiring-products.c...es.html#gen533

 

17.5a is a bit on it's limit and will result in voltage drop over a distance.

2mm thin wall would be sufficient but protect the wiring as there isn't much insulation to protect the copper. 2mm thin wall is usually 28 strands at 0.3mm thick and is rated at 25a.

If you want thick wall cable then go for 4mm rated at 35a, 65 strands at 0.3mm, or 3mm rated at 27a, 44 strands at 0.3mm.

 

ran cant you just make them looms and sell em aswell mate


would make our lives SOOO much easier

 

what i dont understand is that you can buy 17.5 amp 28strand x0.30mm and 25 amp which is 28 strand x0.30mm,how come one is higher rated when they both seem identical?

 

id imagine the 17.5 will be a thicker copper wire to handle the current

 

i used some 2 guage from halfords excressive i know .. but rather have a good supply than just making do

 

both seem to be the same guage thats what i cant understand

 

this is what I used when I re-wired my pump

Used the same stuff on the BMW too

 

The reason is that the thin wall cable can dissipate heat into the atmosphere quicker than the standard thick wall cable. It stays cooler at a higher current draw than the thick wall equivelent.

 

ginge, i probably could do mate.

will see in the future, bit busy at the moment wit other stuff

i suppose i could do a kit but you can buy the kits for about Ł30-40 if i remember rightly.

 

that makes sense then, cheers

 

I's not worth making the loom for that price. I know it's a kit and it needs assembling but I certainly couldn't make a pump loom around that price ready made.

 

i know mate, doesnt seem worth it does it.

 

Ryan how much to sort mine pump out? IE get rid of the dodgy wires at the back?

PM me & let me know dude! Make it worth your while when you pop up to do Pauls!

 

right ,got the wiring sorted, just need to know where is best place to take an ignition feed from? im taking a live direct from battery to relay and want an ignition controlled feed to the relay also

 

use the original wire to the pump ...

 

as pete has said use the original fuel pump live as the trigger.

 

dont want to do that as i want to have all new wiring to eliminate the old wiring problem

 

then you will have to run a seperate wire from the fuel pump relay at the front of the car to the pump at the back as the switch...

 

ill start again,lol, fused live from battery to relay,live from relay to pump,earth from relay to ecu,earth from pump to battery,just want an ignition controlled one to relay if that makes sense?

 

yep .. if you do not want to use the old wire as the trigger you will hav to run a seperate wire from the fuel pump relay to trigger it ... ignition control will leave it switched on constantly...

 

the ecu controls it by switching the earth

 

oh well always knew i was in the wrong