Battery Wiring, heat shield and 100A fuses

Battery Wiring, heat shield and 100A fuses

Author
Discussion

NJP

Original Poster:

119 posts

256 months

Tuesday 29th July 2014
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Having taken the battery out of my car I have looked at the wiring which is not in a great condition so I am going to replace most if not all of it with new cable. Is standard flexible battery cable good enough to withstand the heat from the exhaust or does it need to be high temp stuff?

Does anyone make a pattern part for the heat shield by the battery box or do I need to cut it and make it up myself? In either case does anyone know a good place to get the heat shield material from?

Is there any good reason not to bring the 100A fuse that is attached (or not in my case) to the battery box area the other side of the bulkhead along with the 100A fuse that runs the fuse box thus saving having to remove front wheel etc if it blows?

Thanks for your help in advance folks!

shep1001

4,599 posts

189 months

Tuesday 29th July 2014
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NJP said:
Having taken the battery out of my car I have looked at the wiring which is not in a great condition so I am going to replace most if not all of it with new cable. Is standard flexible battery cable good enough to withstand the heat from the exhaust or does it need to be high temp stuff?

Does anyone make a pattern part for the heat shield by the battery box or do I need to cut it and make it up myself? In either case does anyone know a good place to get the heat shield material from?

Is there any good reason not to bring the 100A fuse that is attached (or not in my case) to the battery box area the other side of the bulkhead along with the 100A fuse that runs the fuse box thus saving having to remove front wheel etc if it blows?

Thanks for your help in advance folks!
Hi Nick, that fuse that lives on top of the battery is the 80A 12v permanent supply to the relay for the Power steering pump (has the green/black wires). The is no problem bringing it in the footwell but personally I would not bother, I replaced the holder and fuse and wrapped it up and stuck it back on top of the battery where I found it. Ordinary battery cable is fine, just get the correct gauge wire and a proper set of crimps & crimper to terminate the cables. Never come across specific TVR heat shields, If I were doing it I would buy my own off the internet and make my own (you can buy thermal cable shields/socks). When you do the wiring remember to check the anderson jump connector as these have a habit of failing and causing a dead short which can and has resulted in a number of fires that have destroyed cars.

Shep

NJP

Original Poster:

119 posts

256 months

Tuesday 29th July 2014
quotequote all
Thanks for the reply Shep.

The heat shield I am referring to is not for the cables but the silver matting stuff that is separating the exhausts and the battery area. Mine is oily and frayed so i was going to replace it while I am tidying things up. I am not describing it all very well tonight so I will take a pic next time I'm under there!

My Anderson connector has already been moved to the engine bay next to the power steering relay.

Do you know of anywhere to get wiring diagrams of the Tam?