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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain. |
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06-12-2012, 07:54 PM | #1 |
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Relocating battery to trunk
Supposedly the FR-S has a 53%-to-the-front/47%-to-the-rear weight distribution.
Anyone work on a battery relocation to the rear to neutralize the weight distribution for better handling? Also, any other ideas are welcome. Thanks, Nathan |
06-12-2012, 08:14 PM | #2 |
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It actually has a 55/45 distribution with 0 people in it and if you trying to get to 50/50, good luck.
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06-12-2012, 08:45 PM | #3 |
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I thought about it, just because my previous car was a miata and had a battery in the trunk stock. I think Im going to take the easy route and just get a very small/lightweight AGM battery to place in the front of this car. Maybe turn it over on its side to get the weight positioned as low in the vehicle as possible.
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06-12-2012, 08:54 PM | #4 |
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I'd much rather go with a smaller lighter battery up front near the stock location and take 20-25 lbs off the front end, than add the extra weight of a battery box and long cables to run a battery to the trunk, not to mention the loss of trunk space.
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06-12-2012, 08:59 PM | #5 |
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I think perfectly 50/50 weight distribution is pretty overrated, especially on a car when people seem to be on the throttle flat through most corners. I would also just consider getting a lighter battery if you want to reduce overall weight.
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06-12-2012, 09:29 PM | #6 |
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I was thinking about a smaller odyssey battery.
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06-12-2012, 10:42 PM | #7 |
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There were some arguments about this a few months ago...
Moving the stock battery to the back will shift the weight distribution 1%, that is +1 -1 so 54/46ish, putting a lighter one in the back shifts it less, putting a lighter one in the front will shift it only a little, etc. |
06-13-2012, 06:37 PM | #8 |
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Seems kind of pointless to me if it only changes the ratio -1/+1. If you want to even out the weight throw a sandbag in the back hahaha jk
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06-13-2012, 06:49 PM | #9 |
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Why not just go all Good Fellas and throw a 200 pound mobster in the trunk to even things out a bit.
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10-02-2012, 01:59 AM | #10 |
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I have read somewhere that most FR cars has similar distribution. This changes when the car is moving and the center of mass shifts backward. At that point the car actually closer to 50/50.
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10-02-2012, 07:59 AM | #11 |
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I wouldn't bother moving it either. It is easier to change the balance of the car in corners with camber angles and tire pressure. A lighter battery may be worth the investment.
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10-02-2012, 02:28 PM | #12 |
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Don't waste time relocating IMO. The added wire will just give you a net increase in weight unless you go to a lightweight battery.
That being said, a 20lb Deka, Braille, or Odessy battery in the stock location would be a great investment, I think. If you have the cash, there are even 5LB LiPo batteries you can drop in the stock location, but they are several hundred dollars. A lightweight battery up front will give you added advantage of overall weight savings, it removes weight from the front also helping the balance ratio, and does not incur the weight of adding heavy cables to the trunk. |
10-02-2012, 02:59 PM | #13 |
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10-02-2012, 03:04 PM | #14 |
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^ lol that was funny.
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