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New Optima Battery/BPI flowstack

 
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Old 03-29-2009, 02:08 AM
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Icon9 New Optima Battery/BPI flowstack

Hey guys, I have a 1997 (Base) prelude, and was wanting to do the BPI flowstack/CAI/K&N filter combo, but i found out that the huge part# RF-1048 filter can't fit next to my battery. I was debating on whether to relocated the battery, but I need trunk space and don't want to loose any voltage with a addition of a longer cable. So i thought that maybe a new/smaller battery would work. I was debating on whether i should get the Yellow or Red Optima battery and which model to get. In the future i do plan of adding additional interior lighting and sound system, but it will be pretty conservative, not over the top. Any help would be greatly appreciated.
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Old 03-29-2009, 03:07 PM
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Re: New Optima Battery/BPI flowstack

if it's a cold air it's down below the battery?
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Old 03-29-2009, 09:04 PM
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Icon11 Re: New Optima Battery/BPI flowstack

Yeah Cold Air Intakes may be located in the fender, but some aren't and are just placed where the factory one lies, behind the battery. Do you know how much space there is in the fender? Would the mammoth air filter fit?
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Old 03-29-2009, 10:44 PM
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Re: New Optima Battery/BPI flowstack

it should fit, what size is it? i have the AEM V2 and it has a gigantic air filter. i am using the red top optima which is plenty for mine. i used to have two subs and a 1000 watt amp and could leave that on without the car running for hours and it would always start right up. the yellow top is overkill imo.
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Old 03-29-2009, 10:57 PM
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Re: New Optima Battery/BPI flowstack

If you're having problems getting stuff to fit, why not relocate the battery to the trunk like I did? No problems with intakes or filters then... It's pretty cheap too and the weight distrubution gets the cars balance more in the favor of 50/50 instead of the stock 63/37 weight distro...





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Old 03-30-2009, 12:50 AM
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Re: New Optima Battery/BPI flowstack

What would be a good gauge wire to use to relocate the battery??? i was wondering if i could use my amp wire... i think its 4 gauge?
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Old 03-30-2009, 01:13 AM
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Re: New Optima Battery/BPI flowstack

If you don't have a V2, it will fit. It's snug, but it fits with the battery.
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Old 03-30-2009, 12:18 PM
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Re: New Optima Battery/BPI flowstack

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Originally Posted by Stancil1216 View Post
What would be a good gauge wire to use to relocate the battery??? i was wondering if i could use my amp wire... i think its 4 gauge?
There are two main kinds of wire people use to relocate the battery to the trunk. The first is speaker wire and the second is welders cable. Just for your knowledge, I'll share some knowledge with you about some of the finer points of selecting cable for any given application.

1. Electricity flows through wires by following along the outside surface of the conductive material (the copper).

2. If you have a single solid piece of copper that's 1cm in diameter, compared to several smaller strands making up the same diameter, the latter will allow more electricity to flow through because several smaller strands makes up a larger surface area compared to the surface area of the single solid piece.

3. Since welding equipment needs a large amount of electricity to operate, welders cable will always flow more electricity than speaker wire because in real life, speakers don't need nearly the same amount of electricity as a welding machine.

4. Electricity (DC current like our cars have) will lose its electrical strength the farther it gets from its source, so you need a thicker cable or a higher density of copper strands the more distance you run from your source.


So knowing this, I wouldn't recommend a 4 gauge speaker wire, it's been done, but it just means that the alternator isn't flowing as much electricity back to the battery as it could be (due to the distance from the engine to the trunk). I would barely recommend a 4 gauge welders cable. I personally have a 1 gauge welders cable running from the engine to the trunk. I haven't had any issues with charging my battery and always believe to play it safe instead of sorry.

Just so you know too, the dangers of running a wire that's not thick enough back to your trunk runs the risk of having the wire heat up to the point where it may possibly melt the outside coating through and if the wire touches a bare metal spot to the car, will ground it out, leaving your car without power at an unexpected time or worse, having the heat ignite your carpet or platic molding, causing a fire or burnt area. The heat comes from excess resistance caused from a longer distance the electricity has to flow, because all metals regardless, have a certain amount of electrical resistance to them, but distances multiply that resistance.

If anyone has any more questions, please ask me!
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Old 03-30-2009, 06:30 PM
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Re: New Optima Battery/BPI flowstack

Hmm well maybe I may relocate my battery to the trunk using 1 ga welders wire, but recently, I found that the aem v2 w/ coldair box mod is one of the best, and I will not need to relocate the battery!
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Old 03-27-2010, 01:39 PM
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Re: New Optima Battery/BPI flowstack

so you think the yellow top is overkill ?? why is that i am askin cause i just bought a new alternator and a yellow top lol
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