FD RX7 battery relocations have historically required some sort of cutting or drilling. One of the popular options was to place the battery in one of the rear bins, but in order to securely mount it to the chassis, the bin bottom had to be cut. Another option was to mount a battery in the trunk, likely requiring cutting the carpet and drilling some holes. Both options have made us cringe.

With the advent of smaller, lighter battery options possible through companies like Antigravity, we have designed this battery relocation kit to take advantage of an unused pocket in the FD RX7 trunk, behind a plastic cover. This allows you to mount a small, yet powerful enough lithium battery (Antigravity ATX20) in a secure yet hidden manner in the trunk. The photos will speak for themselves!

The battery tray it self is CNC laser cut steel which is then precision bent and powdercoated satin black. It incorporates a mount for a marine-grade 200A 48VDC Eaton Bussman surface mount circuit breaker. The circuit breaker provides some added protection and can be used as a cut off switch if so desired (accessible with the trunk plastics installed). Please keep in mind that while this is a quality breaker, repeated tripping over time may cause it to wear out. In addition, the tray has a provision to accept the plastic push clip retainer for the trunk plastic.

Provided with the kit is a power cable that will go from the battery to the breaker, as well as a ground cable that runs from the battery to the the 14mm bolt in the trunk. Installation hardware is provided.

We do not include a power cable or ground cable from the battery to the engine bay. We advise that you run the appropriate gauge cables for your application. If you are running coils like the IGN1A, it is highly recommended to have a ground cable to go from the battery to the top of the engine to provide a direct ground connection.

Please view this video on our Youtube channel for a product overview and installation guide.

We offer three iterations of this kit:
1. Tray Kit WITHOUT a battery
https://jp3motorsports.com/products/...21db5e32&_ss=r

2. Tray Kit with an Antigravity ATX-20-HD battery
https://jp3motorsports.com/products/...f6cc1cac&_ss=r

3. Tray Kit with an Antigravity ATX-20-RESTART battery
https://jp3motorsports.com/products/...ef863761&_ss=r

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This is cool!

A lightweight battery is a worthwhile mod, even in the stock location. One of the main challenges of making an FD fast around a track is increasing the rear weight bias. Something like 55% rear is ideal for braking and corner exit traction.

 

This is great! I'll be picking one of these kits up eventually, other priorities at the moment though. I also want to thank you for your continued development of parts for our cars!

 

Thanks! Happy to continue producing and innovating for the community!

 

Do you have any write ups on where you run the power cable? Very interested in this product, just not sure if to go under the car or through the inside. Thank you for your continued support!

Tony

 

Everyone has different ways to route the positive to the front of the car or to the starter. Either you can route it in the interior and along the carpet near the door opening with the cable going through the firewall grommet by the driver fender. The other option is to drill a hole in the trunk somwhere like in the spare tire area and run the cable under the car. Lots of different ways ...

 

I'm guessing you would need a redesign to mount on the other side of the latch for RHD weight distribution?

 

RHD? Weight distribution? The ATX20 batteries weigh almost nothing ...

 

Does this fit with the sakebomb water tank?

 

It will not as the SBG tank takes up all the realestate behind that rear cover trim panel in the trunk.

 

Thank you so much for sharing it, I found it useful for me and also I will share it with my friends too