Re: B-Body Battery in Trunk
[Re: AlexP]
#1607628
04/15/14 12:53 AM
04/15/14 12:53 AM
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Joined: Mar 2006
Posts: 9,835 MI, usa
dvw
master
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master
Joined: Mar 2006
Posts: 9,835
MI, usa
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Quote:
Can anyone tell me what kit they used to put the battery in the trunk? The battery that you used and some pictures would be nice. I'd like to run a really large AGM or Optima of some sort.
Thanks
How about two? Tray was fabbed from 1/2 angle. Hold downs were 1/2 angle aluminum. Doug
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Re: B-Body Battery in Trunk
[Re: dvw]
#1607629
04/15/14 12:55 AM
04/15/14 12:55 AM
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Joined: Mar 2006
Posts: 9,835 MI, usa
dvw
master
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master
Joined: Mar 2006
Posts: 9,835
MI, usa
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Re: B-Body Battery in Trunk
[Re: AlexP]
#1607630
04/15/14 06:46 AM
04/15/14 06:46 AM
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Joined: Jun 2005
Posts: 793 Utah
topbrent
super stock
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super stock
Joined: Jun 2005
Posts: 793
Utah
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Just my opinion, but I'd opt to leave it under the hood and use a lightweight modern battery instead. The weight of 20-50ft of 1/0 cable certainly adds up. Also, consider the aggravation of voltage drop, high resistance grounds, hot start issues, cable routing, and the real potential for meltdown failure with 25ft of constantly hot line running under the carpet day and night. If you do choose the trunk route, figure out your total maximum potential amperage load first. You will probably need larger capacity wire than what is provided with most cheapo kits. ECU, injectors, fans, pumps, stereo, headlights, horn, tailights, domelight, A/C, signals, markers, brake lights, 12v acc, oxygen sensors, ect.
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Re: B-Body Battery in Trunk
[Re: AlexP]
#1607635
04/15/14 06:54 PM
04/15/14 06:54 PM
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Joined: Oct 2007
Posts: 4,206 New York
polyspheric
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New York
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The exact position of the battery changes your weight distribution (duh), but also your weight transfer. The distribution: weight directly over the axle is 100% (the actual battery weight) on the rear wheels, and nothing on the front. As the same weight moves back toward the bumper, the rear weight goes up (over 100%) and cantilevers weight off the front wheels. If hung on a tray out the back, a 100 lb. battery could add 200 lbs. etc.
The transfer: The distance between the axle center and the battery affects how quickly the car rotates around the axle on launch - greater distance (high polar momentum) slows down rotation. This is both front-to-back, but also height - the box can be raised so that the trunk lid just closes.
Expect to observe and tweak your suspension setting as needed.
Boffin Emeritus
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Re: B-Body Battery in Trunk
[Re: polyspheric]
#1607636
04/16/14 12:39 AM
04/16/14 12:39 AM
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Joined: Jul 2006
Posts: 4,319 Puyallup, WA
StealthWedge67
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Joined: Jul 2006
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Puyallup, WA
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Even though its just a street / strip car, I wanted it to be fully legal. So, I used a sealed & vented Taylor battery box. Shutoff is a Summit 250 amp waterproof rotary switch.
LemonWedge - Street heavy / Strip ready - 11.07 @ 120
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Re: B-Body Battery in Trunk
[Re: StealthWedge67]
#1607638
04/16/14 01:08 AM
04/16/14 01:08 AM
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Joined: Jan 2003
Posts: 4,448 Phoenix, AZ
MoparBilly
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Joined: Jan 2003
Posts: 4,448
Phoenix, AZ
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Left the battery in the front.
"Livin' in a powder keg and givin' off sparks"
4 Street cars, 5 Race engines
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Re: B-Body Battery in Trunk
[Re: MoparBilly]
#1607639
04/16/14 01:10 AM
04/16/14 01:10 AM
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Joined: Jan 2003
Posts: 4,448 Phoenix, AZ
MoparBilly
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master
Joined: Jan 2003
Posts: 4,448
Phoenix, AZ
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Put a big bottle in the trunk! Much better performance than just swapping the battery back there...
"Livin' in a powder keg and givin' off sparks"
4 Street cars, 5 Race engines
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Re: B-Body Battery in Trunk
[Re: StealthWedge67]
#1607642
04/16/14 02:21 AM
04/16/14 02:21 AM
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Joined: Jan 2003
Posts: 27,421 Balt. Md
383man
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 27,421
Balt. Md
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Quote:
Even though its just a street / strip car, I wanted it to be fully legal. So, I used a sealed & vented Taylor battery box. Shutoff is a Summit 250 amp waterproof rotary switch.
Thats really a nice battery box but not cheap. So thats why I used the marine case as it was given to me for free but the one you use is the one I plan to get one day. Ron
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