seaneylad Posted January 27, 2015 Report Posted January 27, 2015 Evening! Going to chuck a bigger battery in the boot as my tiny one is rubbish. I see people wiring in the fia kill switch etc. Is this needed on a road and occasional track car? Is the kill switch h needed. Can you just add a normal basic kill switch in the boot or something so when the cars not in use you can nock the live off thayll run through the car? Thanks sean
Danish Posted January 27, 2015 Report Posted January 27, 2015 I'm connecting my boot battery with a 175 amp Anderson connector So I can disconnect the battery, and I have the option of having a small battery for running quarter miles, and a large battery for winter and long trips. 2
The Transplanter Posted January 27, 2015 Report Posted January 27, 2015 Its not legal or an MOT requirement to have one. Although it wouldnt hurt. 1
Admin Vista Posted January 27, 2015 Admin Report Posted January 27, 2015 No you don't need an FIA battery isolator, one of these is quick and easy to fit and simple to operate. Needs a round terminal battery though http://m.ebay.co.uk/itm/371243203507?nav=SEARCH
seaneylad Posted January 27, 2015 Author Report Posted January 27, 2015 No you don't need an FIA battery isolator, one of these is quick and easy to fit and simple to operate. Needs a round terminal battery though http://m.ebay.co.uk/itm/371243203507?nav=SEARCH Thanks. Looks like the one, just want it nice and simple to fit that in the boot with the battery and can knock it off when I park it up for peace of mine
skeeter Posted January 27, 2015 Report Posted January 27, 2015 Not sure what you have under the bonnet, but wouldn't it easier to just put a slightly larger battery holder in place of the existing one and fit the larger battery there? It is what did a few years back on an older car I had which needed a bigger bang from the battery. S
Admin Vista Posted January 27, 2015 Admin Report Posted January 27, 2015 Not sure what you have under the bonnet, but wouldn't it easier to just put a slightly larger battery holder in place of the existing one and fit the larger battery there? It is what did a few years back on an older car I had which needed a bigger bang from the battery. S Mk1 Escort under bonnet battery trays are tucked into a recess in the front nearside corner, you can make it a little longer (if you don't have side draughts on it) but making it wider isn't really an option.
The Transplanter Posted January 27, 2015 Report Posted January 27, 2015 I'm connecting my boot battery with a 175 amp Anderson connector So I can disconnect the battery, and I have the option of having a small battery for running quarter miles, and a large battery for winter and long trips. Good Idea, you could even use them on a jump pack and run the 1/4 on the alternator
seaneylad Posted January 27, 2015 Author Report Posted January 27, 2015 Mk1 Escort under bonnet battery trays are tucked into a recess in the front nearside corner, you can make it a little longer (if you don't have side draughts on it) but making it wider isn't really an option. Not sure what you have under the bonnet, but wouldn't it easier to just put a slightly larger battery holder in place of the existing one and fit the larger battery there? It is what did a few years back on an older car I had which needed a bigger bang from the battery. S Yeah not much room. Got twin 40s so can't go much longer, and ally rad stops me going wider .. So boots my only option Cheers
classicwhitey Posted January 27, 2015 Report Posted January 27, 2015 Good Idea, you could even use them on a jump pack and run the 1/4 on the alternator without wanting to sound stupid,but what do you actually need the battery for on a strip car apart from starting? would everything that is normally connected to the battery for a 12v feed work from the alternater charge like luminition ignition etc? or do race cars have a small light weight dry cell battery for this purpose and do away with the alternator? as ive noticed that drag cars are pluged in on a jump pack and started on leads normally at the back of the car? 1
The Transplanter Posted January 27, 2015 Report Posted January 27, 2015 without wanting to sound stupid,but what do you actually need the battery for on a strip car apart from starting? would everything that is normally connected to the battery for a 12v feed work from the alternater charge like luminition ignition etc? or do race cars have a small light weight dry cell battery for this purpose and do away with the alternator? as ive noticed that drag cars are pluged in on a jump pack and started on leads normally at the back of the car? An alternator in good working order will run engine management. Dragsters generally have magnetos built in the twin distributors (thats why they are huge) not alternators per se. so only need the battery to start the engine
deltamal Posted January 27, 2015 Report Posted January 27, 2015 I moved the battery to the boot but went overkill on cable size and lost a few of the volts by the time they got to the engine bay, this caused problems with the ECU and starting, after consulting an electrician the right cable was fitted and cured the problem! the battery is bigger than standard with round terminals and cut off device as above,round terminals not important as it can't be seen!
skeeter Posted January 27, 2015 Report Posted January 27, 2015 Unlike the Tina then where I could fit 3 or 4 batteries in the space. 1
NeilT Posted January 28, 2015 Report Posted January 28, 2015 without wanting to sound stupid,but what do you actually need the battery for on a strip car apart from starting? would everything that is normally connected to the battery for a 12v feed work from the alternater charge like luminition ignition etc? or do race cars have a small light weight dry cell battery for this purpose and do away with the alternator? as ive noticed that drag cars are pluged in on a jump pack and started on leads normally at the back of the car? Rob race cars tend to do away with the alternator because it steels power from the motor to run the alternator, same reason to move to an electric water pump
seaneylad Posted January 28, 2015 Author Report Posted January 28, 2015 Looking at batteries while im online. Was advised a good one is to go for with a CCA of 440-460 .... should chuck it over nice and easy? Thanks
BigBubba Posted January 28, 2015 Report Posted January 28, 2015 You don't really need a big battery unless you're running high compression or electronics etc imo, the gauge of cable you use will be more important when moving the battery to the rear.
seaneylad Posted January 28, 2015 Author Report Posted January 28, 2015 You don't really need a big battery unless you're running high compression or electronics etc imo, the gauge of cable you use will be more important when moving the battery to the rear. Cheers What gauge is best? As mentioned above don't want to go over kill Thanks
Admin Vista Posted January 28, 2015 Admin Report Posted January 28, 2015 I used 16mm2 battery cable and it works fine. 1
Danish Posted January 29, 2015 Report Posted January 29, 2015 I went for 75mm2 as they were chucking out offcuts where my friend works 1
e501 Posted January 29, 2015 Report Posted January 29, 2015 I always think its a good idea to put the battery in the boot anyway, get some weight over that heavy live axle. 1
seaneylad Posted January 29, 2015 Author Report Posted January 29, 2015 Cheers! am i right in thinking also your best off just running one live from the battery in the boot to the starter, and running the other lives to the rest of the car off the starter then?Thanls
BigBubba Posted January 29, 2015 Report Posted January 29, 2015 Just do a search for Welding Cable , you wont go far wrong with that.Biggest issue is voltage drop because of the long leads. Bigger wire means less resistance, hence less voltage drop. I used to use a big ol' leisure battery in the boot when i was running a mega high compression pinto, but you should be fine. If the battery is goosed, by all means, get a larger one, but if you don't need to spend hard earned then happy days!!!!!
The Transplanter Posted January 29, 2015 Report Posted January 29, 2015 Cheers! am i right in thinking also your best off just running one live from the battery in the boot to the starter, and running the other lives to the rest of the car off the starter then? Thanls You could use a 500A bulkhead connector and run the wiring loom etc from that. Or you could get yourself in a breakers yard and take what you need from a BMW
seaneylad Posted January 29, 2015 Author Report Posted January 29, 2015 You could use a 500A bulkhead connector and run the wiring loom etc from that. Or you could get yourself in a breakers yard and take what you need from a BMW Cool thanks for info found some info on them 500amp connectors doesn't seem to be loads for sale online but look like they could do the job. Want to get the right bits and get an auto eletricsion to fit them for me, wiring needs tidying up Cheers
seaneylad Posted January 29, 2015 Author Report Posted January 29, 2015 Found a 300amp one like this? http://www.electricalcarservices.com/Pass-Through-Panel-Studs--Jump-Start-connectors/Pass-Through-Panel-Stud-300A-3.2-to-6.35mm-Red-ECS-V7B3731N02W/p-333-2531
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