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r34 relocate battery

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I know this may have been asked before but couldn't get a direct response to what i needed


I have ran the cable to boot and ready to relocate. i want to mount the battery on the top shelf by removing the hicas ecu.

unfortunately there is no bolt or whatso ever to hold the batter in place. I am thinking of drilling a whole on the top shelf but my question is, is the top shelf very close to fuel pump / plastic pump and I could put a whole in the tank?


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Yes it's very close to the fuel tank, getting a bolt or 4 in there (properly) will be a bit of a headache too. Pull off the fuel pump lid and have a look under there to get an idea of what you're working with - I'll give you a hint, it's not very much at all.

In terms of drilling into the tank, yes it's a pretty real risk so be careful, or re-consider your need to mount it in that exact location.

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yeah very small much tiny space, did place it on right hand side


i am running positive through a kill switch which is the one below



how would you cover the bottom when wires are in to ensure it won't touch body etc?

i am thinking a battery box but rather not buy one as have a battery bracket but this needs to be inside something

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I mounted mine up there using a boat battery dry box and fastening it to the plate behind the rear seat back rest.  I wanted to avoid drilling anywhere near the fuel tank.

Edit:  https://www.amazon.ca/Attwood-Corporation-9082-1-Small-Battery/dp/B0000B12YQ/ref=asc_df_B0000B12YQ/?tag=googleshopc0c-20&linkCode=df0&hvadid=293019546650&hvpos=1o3&hvnetw=g&hvrand=18158838352016114596&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9060757&hvtargid=pla-449319819249&psc=1

Edited by R34L_Crooks
Link to dry box
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R33's had the battery in the boot and the battery holder bolts straight into the r34 the holes are already there. I had to modify the bracket for the ecu behind the battery though to make it fit. Here is a pic but it is not finished.


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