R34 GTT Battery Relocation To Trunk

[Beanie]

Hi all!

Looking to relocate the battery to the trunk of an R34 GTT.

I want to do it using as many stock GTR components as I can (including the harness protectors from the 34 GTR that run underneath along the chassis to the engine bay). So far I’ve purchased the battery tray from a 33 GTR, as the captive weld nuts are already there just asking to be used.

There is also the slight issue of now having to relocate the ABS/TC/Fuel Pump Control ECU, which in GTT’s sits right above where the battery will then sit on the tray.

Has anyone already achieved this, and if you have any pics that you wouldn’t mind sharing? It would be great to see how others have done it and where you put them, as there are countless holes in the parcel shelf panel to potentially use.

Just trying to get some ideas bounced around, and to help uncover any potential problems I may encounter by  my choice of location.

TIA for any help!

[GTSBoy]

Wasn't there a thread on this very subject just a few weeks ago?

[Beanie]

I believe there was a similar one posted by @duggyphresh.

They were re-routing their battery positive cable in the way I am also trying to achieve.

Sorry, I’m new to this forum, so was a bit late to the party by a few months and so reignited the old thread, as I wanted to know how they got on with doing it.

[NZ-GTT]

I did this mod in 2019 

You just have to modify the top bracket of the ABS/TC/Fuel Pump Control ECU so it sits more upright and closer to the back seat and run a good quality positive battery lead from the engine bay, the negative lead i just bolted down to the body in the boot.

[Watermouse]

I just got this system but haven’t installed yet

I got a Moroso sealed box (defect reasons) which will be set up same as their pic

The quality is high grade, the correspondence I had with the owner (former head designer for Rockford Fosgate) was unbelievable, guiding me with what I needed. Even told me not to buy some things as it could be sorted in a different way at his loss.

Just a bit of a bite with the exchange rate and don’t purchase gear in 1 hit that goes over $1,000 au, lol I forgot!

 

[jrm]

On 12/28/2024 at 8:10 PM, NZ-GTT said:

I did this mod in 2019 

You just have to modify the top bracket of the ABS/TC/Fuel Pump Control ECU so it sits more upright and closer to the back seat and run a good quality positive battery lead from the engine bay, the negative lead i just bolted down to the body in the boot.

Hey mate.

I've had this on my list of things to do for a while, but got stumped by the bracket / ECU situation and haven't had time to look at it properly.  Would love to see photos of what you achieved to give a better guideline on how to approach this.