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04-28-2012, 01:33 PM | #1 |
Drives: 2009 yaris sedan Join Date: Apr 2011
Location: toronto
Posts: 141
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Big 3 question
Do i have to put a inline fuse for the 0 gauge run from the alternator to the battery? ( if so how big should it be?)
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04-28-2012, 04:41 PM | #2 |
Roadrunner Jr.
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Plan the fuse holder in a smart area. The argument is that you have a hot wire coming off the positive of the battery...which is true. If it grounds you'd want to fuse the hot wire.
That being said, think about it...Why are you going to put a fuse on it? In case the wire comes out or you get into a wreck. The first necessitates a smack to the back of the head if you can't secure a wire in the vehicle correctly. The second necessitates a big scratch of the head. Why? Because if you indeed crunch up the engine compartment that fuse better be VERY close to the battery positive to really work as it is intended. Don't leave much if any wire lead before the fuse off the positive for it to potentially catch on metal. "There are 2 connections which must be intact or upgraded when adding any components that draw significant amounts of current. The first is the short ground wire which connects the negative battery terminal to the vehicle's chassis. The other connection is the braided ground strap that connects the engine block to the chassis." -BCAE1 "Realize that the "absolute ground" of the electrical system is not the battery negative terminal or the vehicle chassis, but is the case of the alternator itself. This is why perhaps the most important cable among the Big 3 is the engine ground strap, as this is what connects the alternator ground to the vehicle's chassis." - the12Volt.com
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“To argue with a person who has renounced the use of reason is like administering medicine to the dead.” ― Thomas Paine |
04-28-2012, 07:38 PM | #3 | |
Drives: soarer Join Date: Feb 2011
Location: Beautiful British Columbia
Posts: 954
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Quote:
I placed the fuseholder near the passenger side strut http://photo.qip.ru/users/tolmach/96608749/126157541/ (my .02) |
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04-28-2012, 08:19 PM | #4 |
Drives: 2009 yaris sedan Join Date: Apr 2011
Location: toronto
Posts: 141
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so fuse alternator to battery positive wire as close as possible to battery, got it.
how big should the fuse be? (120-150 amps?) as for the engine block to chassis ground strap, do i replace it, or run the 0 gauge ground right beside it ?( ie just remove nut from bolt and slide on the new wire right beside the factory one) |
04-28-2012, 09:25 PM | #5 |
Roadrunner Jr.
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Never replace the OEM run. Just add.
Why don't I have mine fused? Because I'm a disagreeable cus who has actually tied the wire more securely after these pics were taken. If the wreck I get into is big enough to dislodge the tie and the connection from the battery, I've got much bigger issues than a fuse which would most likely be disintegrated anyway.
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“To argue with a person who has renounced the use of reason is like administering medicine to the dead.” ― Thomas Paine |
04-28-2012, 09:55 PM | #6 |
Drives: 2009 yaris sedan Join Date: Apr 2011
Location: toronto
Posts: 141
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ok, well if i can run it , ill just secure the power wire along the firewall somewhere, away from the front of the car, as for the engine block to chassis ground, where is it located ,any pics? i will be ordering the wire from knukonceptz either tonight or tommorow, along with ring terminals.. i dont think i need to replace the battery terminals?
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04-29-2012, 12:23 AM | #7 |
Okay if you decide to use a fuse you want it about 6-8 inches from your battery anything outside of that is useless. If you got into a wreck and your engine compartment was compromised you'd want your fuse to be as close to your battery as possible. If you're going to put that fuse further it's useless due to the fact if the wire grounds anywhere outside of the circled area it will cause a short and a fire.
Sq can you please show the picture of how you grounded your alternator ?
__________________
Audio is under Construction Kenwood KDC-X794 Hifonics Zeus ZXI6.5C 6.5-Inch 2-Way Component Speaker System - AUTOTEK ATX65CX 6.5-Inch Hifonics BXi 1210D - Crunch PowerZone P1400.4 (2)12 inch Kicker CVR's - 0 gauge from battery to Distribution block - 4 Gauge Power/Grounds to amps - Duralast Yellow Top - Big 3 |
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04-29-2012, 12:53 AM | #8 | |
Drives: 2009 yaris sedan Join Date: Apr 2011
Location: toronto
Posts: 141
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Quote:
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04-29-2012, 01:21 AM | #9 |
You are going to have a 90 amp fuse on your alt to battery run and some people fuse the wire for the amperage it can support and run a fused distro block in the trunk or do it the way you're saying with a 90 amp fuse.
__________________
Audio is under Construction Kenwood KDC-X794 Hifonics Zeus ZXI6.5C 6.5-Inch 2-Way Component Speaker System - AUTOTEK ATX65CX 6.5-Inch Hifonics BXi 1210D - Crunch PowerZone P1400.4 (2)12 inch Kicker CVR's - 0 gauge from battery to Distribution block - 4 Gauge Power/Grounds to amps - Duralast Yellow Top - Big 3 |
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04-29-2012, 01:45 AM | #10 | |
Drives: 2009 yaris sedan Join Date: Apr 2011
Location: toronto
Posts: 141
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Quote:
Ok, ill check my current 4 gauge tommorow and see what brand it is and what kind of fuse it has, ill probably just do a 100 amp fuse on alt-battery wire and put a distro block in the trunk. Hopefully ill be ordering my 0 gauge on sunday as well, i can use ring terminals(crimp type, but i will solder as well) on the stock battery terminals correct? |
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04-29-2012, 01:46 AM | #11 |
Drives: Yaris Sedan 2009 Join Date: Sep 2010
Location: Quebec
Posts: 566
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SQ!! Where did you bought the red thing around you cable ?:D
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Interior:ALL red, black roof Exterior:RTX scorpion painted GOLD, side and rear visor, oem spoiler, MI mesh grill, Hella supertone horn, RS badge, Vios badge, CF pillar, Led mirror cover, fog light HID 3000k, Projector retrofit HID 8000K Performance :MI CrankPulley, Tein springs, UR and TRD bar, TURBO IN PROGRESS Audio : Pionner DEH-80PRS, HAT L1V2, PowerBass 1100.5X 5 channel amp |
04-29-2012, 11:31 AM | #12 |
Roadrunner Jr.
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Tolm,
Why the fuse placement on the other side of the engine bay? @packetrace - you mean the heat shrink? :) Alty ground: ^and yes, it is grounded properly. I used a brush attachment on a drill to scrape the paint away from the body.
__________________
“To argue with a person who has renounced the use of reason is like administering medicine to the dead.” ― Thomas Paine |
04-29-2012, 12:07 PM | #13 |
Drives: 2009 yaris sedan Join Date: Apr 2011
Location: toronto
Posts: 141
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would this suffice as a engine - chassis ground?
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04-29-2012, 05:58 PM | #14 |
Drives: Yaris Sedan 2009 Join Date: Sep 2010
Location: Quebec
Posts: 566
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I meant the techflex...where did you bought it ?
__________________
Interior:ALL red, black roof Exterior:RTX scorpion painted GOLD, side and rear visor, oem spoiler, MI mesh grill, Hella supertone horn, RS badge, Vios badge, CF pillar, Led mirror cover, fog light HID 3000k, Projector retrofit HID 8000K Performance :MI CrankPulley, Tein springs, UR and TRD bar, TURBO IN PROGRESS Audio : Pionner DEH-80PRS, HAT L1V2, PowerBass 1100.5X 5 channel amp |
04-29-2012, 11:38 AM | #15 |
Lol @ Sq I thought his battery was on the opposite side of his car ! That thing is like 4 feet from the battery. I thought at the most 12 inches from the battery for any fuse is the max ?
__________________
Audio is under Construction Kenwood KDC-X794 Hifonics Zeus ZXI6.5C 6.5-Inch 2-Way Component Speaker System - AUTOTEK ATX65CX 6.5-Inch Hifonics BXi 1210D - Crunch PowerZone P1400.4 (2)12 inch Kicker CVR's - 0 gauge from battery to Distribution block - 4 Gauge Power/Grounds to amps - Duralast Yellow Top - Big 3 |
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04-29-2012, 12:22 PM | #16 |
Drives: soarer Join Date: Feb 2011
Location: Beautiful British Columbia
Posts: 954
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^SQ, S7
The pic above is for the @alternator to battery@ fuse, my primary fuse is near the battery http://photo.qip.ru/users/tolmach/96608749/126157534/ |
04-29-2012, 12:37 PM | #17 |
Roadrunner Jr.
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Tolm,
I just didn't see a fuse near the battery, that's why I asked. @ 09 - that point would not serve as a good engine to chassis since it's not actually a connection ON the engine block. Take a look under the engine...hint hint.
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“To argue with a person who has renounced the use of reason is like administering medicine to the dead.” ― Thomas Paine |
04-29-2012, 05:03 PM | #18 | |
Drives: soarer Join Date: Feb 2011
Location: Beautiful British Columbia
Posts: 954
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Quote:
My Big 3 is more like Big3 Plus )) because I made several (negative) connections between the alternator body and various points on the engine block, engine computer, car body, and (I think.. do not remember) the battery (-) terminal |
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