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how do i know what size battery cable to go for?
blakep82 - 4/5/11 at 06:00 PM

got the battery box sort of in the middle of the car, and the starter over the opposite side at the front. its 1.5 and then some across, so maybe 3m total depending on how its routed?
starter is standard VAUXHALL astra job, then its only lights, gauges, and ignition, no complicated electric washers or wipers or anything like that.
how much is the starter going to draw on cranking? assuming it might take a little longer than most if its cold?

i haven't got the original cables off the engine to ceck what they were

[Edited on 4/5/11 by blakep82]


daviep - 4/5/11 at 06:17 PM

Personally I'd go large for the battery to starter and for the main engine earth, I'd use 40mm2 539/0.3, which should be good for 300amps.

Davie


snowy2 - 4/5/11 at 07:27 PM

quote:
Originally posted by blakep82

starter is standard ford astra job,


Now that is a car i want to see,

a starter can draw 1000A on start up up to 1500A is possible (only for a short period, then it will settle down to a hundred or so,)

normal starter cable will be fine and you can order it in any length you require it for very cheaply. with ends fitted.


blakep82 - 4/5/11 at 07:32 PM

quote:
Originally posted by snowy2
quote:
Originally posted by blakep82

starter is standard ford astra job,


Now that is a car i want to see,

a starter can draw 1000A on start up up to 1500A is possible (only for a short period, then it will settle down to a hundred or so,)

normal starter cable will be fine and you can order it in any length you require it for very cheaply. with ends fitted.


oops, yeah vauxhall astra! lol thats what i get for building a car with parts from so many different cars both ford and vauxhall, and bedford, kawasaki,
as much as 1000A?! wow. i guess if i can find out what was used on the astra, i'd go for that?