Battery relocation & wire routing, What does everyone think? |
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Battery relocation & wire routing, What does everyone think? |
stugray |
Dec 22 2011, 12:55 PM
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#1
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Advanced Member Group: Members Posts: 3,824 Joined: 17-September 09 From: Longmont, CO Member No.: 10,819 Region Association: None |
I converted my car to a racecar.
Passenger compartment was gutted & replaced with two race seats & rollcage I bought a braile 17lb race battery and I will locate it behind the passenger seat (seat is non-adjustable). I have room to spare back there because the pass. seat is against the rollbar. I also bought the "battery bulkhead feedthru": (IMG:http://www.914world.com/bbs2/uploads_offsite/www.jegs.com-10819-1324580153.1.jpg) Question: Should I make the bulkhead feedthrus come through the back firewall ABOVE the engine-tin-shelf, or BELOW the shelf and straight to the starter?? The standard design for these cars is to use the terminal on the starter as sort of a positive terminal for lots of other stuff. If I put this feedthru terminal in, I can use IT as the main terminal for all things. I also have a master battery disconnect that I want to mount on the engine cover door. So that plays into where to put the terminals. So Above the engine shelf, or below? Stu |
McMark |
Dec 23 2011, 12:08 AM
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#2
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
Batteries have been known to explode. (IMG:style_emoticons/default/unsure.gif)
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strawman |
Dec 23 2011, 11:39 AM
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#3
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Senior Member Group: Members Posts: 881 Joined: 25-January 08 From: Los Osos, CA Member No.: 8,624 Region Association: Central California |
(IMG:style_emoticons/default/agree.gif) I believe most race sanctioning bodies require batteries within the passenger compartment to be contained within a box for that reason. I know we had to do that for our 24 Hours of Lemons Opel GT... |
stugray |
Dec 23 2011, 11:43 AM
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#4
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Advanced Member Group: Members Posts: 3,824 Joined: 17-September 09 From: Longmont, CO Member No.: 10,819 Region Association: None |
"Batteries have been known to explode."
yes, but I believe this is only with the "open" type of lead acid batteries and only during charging in an enclosed area. If sealed LA batteries exploded, we would hear a lot more about that since every UPS on our computers contains them. The race battery is a seal lead acid. Any how, I will enclose it if required. Just cant decide where to drill the holes. Stu |
SLITS |
Dec 23 2011, 11:50 AM
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#5
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"This Utah shit is HARSH!" Group: Benefactors Posts: 13,602 Joined: 22-February 04 From: SoCal Mountains ... Member No.: 1,696 Region Association: None |
If you go through the lower firewall, I believe it is doubled walled (space in between) depending on how low you are talking about.
Personally, I would drill a hole and pass the cable through a rubber grommet, just like on the back of the engine tin. but I put my batteries in the front or rear trunk. In my day, a guy was killed in a roll-over when his battery in the passenger compartment broke loose from its' mount AND he was wearing a helmet. |
stugray |
Dec 23 2011, 03:45 PM
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#6
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Advanced Member Group: Members Posts: 3,824 Joined: 17-September 09 From: Longmont, CO Member No.: 10,819 Region Association: None |
"when his battery in the passenger compartment broke loose from its' mount "
I once rolled a 71 Karmann Ghia, and the only reason I didnt drive away (after rolling back on wheels) was because the battery came loose and broke the dist. cap. Mine is only 17lbs and will be held down as well as my fuel cell. Thanks for the tip about the double wall down low. Stu |
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