If so, where did you run the wiring? Any post-installation problems? And any pitures? Parts list? I figure I might as well fill up the almost useless trunk...

 

What would be gained by moving the battery on a car that has 50/50 weight distribution? Now if it was to make room for a 20B I would understand.

 

I think it isn't really 50-50 more like 52-48, and it is also out over the front wheel line, so moving it back into the trunk ahead of the axle line would be the best. Sounds like a good idea, probably a PITA though, unless you strip the car for racing.

 

I've been wondering about this for some time now. I figure relocating the battery to the trunk after I get FI will pretty much keep the weight distribution 50/50... plus, it would allow me to get a significantly bigger battery, and leave more room in the engine compartment.

Genom and I discussed this a while back for unrelated reasons, and it looks like it'd be pretty easy to run the cabling up conduit under the RH side door sill...

 

I weighted my 8 - full fuel, spare tire, but nothing else in the trunk. No driver or PAX in the vehicle. Using four independent scales at the same time showed the weight on each wheel to be within about 10 pounds of each other all the way around. About as perfect and 50/50 front to back side to side as you could ask for.

Seems to me moving the battery - away from the heat of the engine - would be worth any negatives created.

 

there is no point. so what about heat??

 

i am also very interested in moving the battery to the trunk...is there no one that has done this?

 

Check with the guys at Pettit Racing. They moved the battery to the trunk on the two cars that are being tested with superchargers. Tyler can help you 561-844-2258

Jay Goldfarb

 

Anyone who does this should take great pains to make sure the battery is absolutely held in place securely. Wouldn't want something with that much mass entering the passenger compartment in a crash. Same for the spare tire that some people insist on just laying in the trunk to avoid using the carrier.

 

almost useless? what are you talking about? search for a post by me that talks about all the stuff i packed in there. search "sleeping bags" that should find it. but long story short- i packed everything in the trunk that my wife and i needed for a week long trip to cali and back in late 2003. the only thing we didnt put in the trunk was a cooler of drinks and snacks which i buckeled in the back seat.

 

here i found it for you

 

another good packing job

 

not to mention the amount of the 0 gauge cable you would need, that alone would add about 20 more pounds to the car. More chance for a fire to break out too, alot of amps there.

 

20 lbs.,come on,even if you ran 4ott cable it wouldn't add that kind of weight.All you need to run is one wire from the battery in the truck to the starter,or where ever it goes now,and the ground can be picked up somwhere in the truck area.I relocated the battery in my RX-7,and only used about 6 feet of cable from the battery in the storage bin to the starter,and about 1 foot from the negative post to the seatbelt bolt on the passenger side for the chassis ground.I doubt I added any weight that could really be measured,aside from maybe the Optima battery weighing a bit more than the stocker.Relocating batteries isn't really that big of a deal I don't think,heck even the Miata has the battery in the trunk.Like others have said,be smart about it,and make sure the battery is tied down good,and make sure it is a non-venting type battery like an Optima.

 

... and yet more evidence of the usefulness of the trunk

https://www.rx8club.com/rx-8-multimedia-photo-gallery-6/all-stuff-i-fit-our-8-a-51749/