Battery location

[robo]

Has anyone used the space at the rear either side of the tank to position the battery? Or would it be a ballache to get it out? Just thinking of dumping a bit more of the weight towards the back.

Bob

[HandyAndy]

I might be wrong & I openly admit I know very little about auto electrics ( in fact I prefer to keep it that way as I hate the tangled mess of wiring :eek: :D ).

I,m sure I,ve read somewhere that as much as possible to try & keep the battery as close as is practical to the starter motor , I have no idea why but probably some technical reason etc ....but like I say...I might be wrong:confused: :)

cheers
andy

[skov]

Mazda stuck the battery in the boot in the MX5 to even out the weight distribution.
I'd like to think they know a thing or two about auto electrics :)

It'd be best to have it as close as possible to the starter motor to avoid losing a load of volts accross the wire, but if you've got a decent chunky cable it shouldn't matter too much.

[sven8t4]

That'd be to do with PD and voltage drop over distance and thickness of cable. a long starter motor postive cable would get hot and not spin the starter as fast.

Sven ;o)

[robo]

Not worried about voltage drop as that can be got around but wondered if with all the panels in place it would be physically possible to get a battery in and out of that space.

Bob

[Tilly819]

i think it would be possible with a small battery, however i would not think it a wise plan since it would be right next to the fuel tank.... fuel vapor from the vent + spark = whizz whizz bang or in the case of a rear end accident could be trouble. i now both of these are unlikely but i dont think mr IVA man would like it on those grounds after all you have to keep the fuel lines and the cables separate in the trans tunnel, would kind of defeat the object if you put the battery next to the tank.

tilly

[HandyAndy]

Mazda stuck the battery in the boot in the MX5 to even out the weight distribution.
I'd like to think they know a thing or two about auto electrics :)



:o As I said I know nothing about auto electrics :o

And thinking about it ....my daily driver( Bmw 5 series) has its battery under the rear seat which I suppose was something to do with weight distribution, cos its HUGE :D

cheers
andy

[robo]

:o As I said I know nothing about auto electrics :o

And thinking about it ....my daily driver( Bmw 5 series) has its battery under the rear seat which I suppose was something to do with weight distribution, cos its HUGE :D

cheers
andy

Its for this very reason i think it needs to go in the back. I need a 700amp battery and dont really want to mount it so high on the car. Also battery and under bonnet heat are not best mates.

Bob

[Tilly819]

what on earth do you need such a big battery for? the battery is only used to start the engine... once the engine is running the alternator provides the power
tilly

[Wynand]

Mazda stuck the battery in the boot in the MX5 to even out the weight distribution.
I'd like to think they know a thing or two about auto electrics :)


But they did not have the feul tank sharing the same space as Tilly pointed out.

[auto7]

My Dutton has the battery in the passenger footwell, it keeps the leads short and the battery as low as possible.

[Tilly819]

^^^^

thats what im planning on doing also , sod passenger foot space, performance is the name of the game

tilly

[MarkB]

^^^^

thats what im planning on doing also , sod passenger foot space, performance is the name of the game

tilly

Indeed they are sports cars at the end of the day so it's all about handling, balance and performance

[robo]

My Dutton has the battery in the passenger footwell, it keeps the leads short and the battery as low as possible.
I can feel a tape measure coming on.

Bob

[Cyberbeej]

The battery is in the back in mine, really need as much weight over the back as possible to aid traction.

probably a good idea to section it off from the fuel tank to keep MR IVA happy.

possible even a slab or 2.
I had a v6 capri and needed to have a slab in the boot to stop it kicking out as much.

Also thinking that the dry sump oil tank and windscreen washer bottle will be in the back. its gonna be tight enough in the engine bay as it is.
(Yes i'm fitting a windscreen as i want to fit some sort of hood so it can be used all year round)

[flyerncle]

Passenger side of engine bay is where I put the dry battery on the Teamtrain /Saturn race car and wrapped the exhaust, current drop is the problem with long cables,look in the boot of a 320 diesel BMW at the battery lead and its like a fire hose.