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Discussion Starter #1 (Edited)
So I made a thread a while ago about my new system, no one commented but here it is http://www.focusfanatics.com/forum/showthread.php?t=458753

Anyways, Since the install ive had the ever so common light flicker which ive always had at idle and i still have at idle but now its MUCH MUCH less drastic. However initially after the install i was getting it all the time, didnt matter rpm or anything and it was bad, i mean real bad especially at idle.

So I did some research and found that it could be a number of things from bad battery, to bad alternator, to bad ground, to bad alternator plug, to its just a Focus thing deal with it.

Well I saw some flaws in my install, a big one being ground, the wire was too long and it was grounded to the same spot the internal fuse block was grounded to, I felt like i was robbing power from the fuse box so I changed it, went from 8gauge to 4 gauge and grounded it right next to the amp on the seat belt bracket. At the same time I installed larger power wire, cleaned up the mess of coaxial cable and installed a remote gain knob.

I also went ahead and did the big 4 upgrade.
-Battery negative to frame
-Battery negative to block
-Block to frame
-Alternator positive to battery positive

May also ground the alternator to block in the future, have leftover wire and I might as well right. Heres the kit I used ( http://www.sonicelectronix.com/item_86030_Belva-BBG3KT.html ) It didnt come with the 200 amp breaker (300 amps is recommended if you have a high output alternator, you could use an ANL fuse too if you want) and i had to buy a few extra connectors and some heat shrink to complete the job but who cares My local audio place quoted me $150 in parts alone[ohcrap] and the kit I bought had more than enough wire is quality wire and it took well to solder so I was more than happy.

Also, side note. Try your hardest to put your fuse or breaker as close to the battery as possible, my set up is not perfect but I did this for aesthetics and took precautions by double looming the trailing wire and made sure there were no hot spots so it wont be a problem in the future.

On top of all this I filled my trunk with more peel and seal, F the bad reviews on this stuff Im no expert and I dont live in Arizona heat but Ive seen some hot ass days in the last month and theres no smell or running plus it cost me only like $45 to fill my whole hatch, and when I say whole hatch I mean everything sides back floor actual hatch everything that is covered by carpet or plastic aside from the roof and it makes a world of difference, the number of vibrations ive eliminated...... well lets just say from the outside it sounded like a tin can before and now it sounds like a wet sponge, strange analogy but you get it right?

I also put in a Sirius XM radio, (Head unit is XM ready) I was able to install it without removing the head unit, SCORE... Pretty much if you really try the whole back side of the head unit is accessible without removing it. Not sure how i feel about serius XM yet $10 a month seems high especially for basic service and theres some good stiff on there but Right now im on the free trial period (which is full access $20 a month) and i wouldnt pay $10 for that. so weel see when my trial period is up. In any case I was a bit disapointed when the install instructions said I had to put the antenna on the outside of my car, yea forget that, I mounted it on my dash just by the DS pillar, it cuts out from time to time but reception is way better than any FM radio ive ever used. Sould have done some rearsearch on XM pricing before spending $50 on the box and antenna, live and learn.[facepalm]

So lets talk about my gain knob, I wanted it to be stealth.... I feel like paul walker in the original Fast and the Furious movie when I pop it out and use it. I mounted it in my ash tray and it works better than I ever expected, had to cut the mounting tabs off of the gain controller and remove the front cigarette holder grate thingie from the ash tray but after that it just popped right in there and I used the original housing bolts to secure it, YEA!!!!!!!

I also Wandered down the ooh so dreaded chromed out isle of Autozone and found a cool license plate light that I used as my hatch light, mounted it under the passenger side hatch cover, cant be seen and throws 50X more light than the OE set up.

SO HERES THE PICS

500 rms 1k max output, monoblock. Pretty impressed with a run of the mill brand like MTX



This pic shows both block to ground and block to battery plus breaker location



200 amp breaker



Wire leads to battery



Ground spots



More ground spots plus power cable and fuse mount



Peel and seal teaser



XM antenna location



Kenwood headunit, base model



Flip up gain control



12" kicker compR with subthump box, guy across the street called the cops on me the first day I put it in, told them it was rattling his walls. Ass hole didnt have the balls to come over to my house and talk to me, yea I get it no one wants to hear my bass but for gods sake I was in my garage with the garage door closed and car windows up. I know he didnt come over because, I went over, knocked on his door and asked him. I think hees mentally disabled so I just dropped it.



Autozone light mounted



Hatch lit up

 

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Vince your Moderator
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I've some questions,

What is the water level in that battery?

How old is that battery?

Has that battery ever been tested?

Do you have or do you not have an H.O. alt?

If so, who made it?

Clean car BTW
 

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Discussion Starter #3
Water level: Full with distilled water

Battery age: Not sure, was the battery that came on the car and I bought it a year or so ago car had 78k on it, the posts were a bit coroded when i got it, cleaned that up as you can see

Battery tested: no, been in the market for a yellow top optima so ive not put much effort in diagnosing my current battery, guess I should have started with new battery, then wiring, but was bored and wanted a project and was initially a bit turned off when my car audio place quoted me $600 on a Kinetik battery.

HO alternator: no, stock to the best of my knowledge

-----------

Ive solved like 90% of my flickering, it was horrible and annoying before but yes I still have a slight flicker at idle and I have dimming when i turn the bass way up. So you think a new battery would eliminate it?

Please, im welcome to suggestions
 

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Vince your Moderator
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Discussion Starter #5
the main ground no, where is that? is that the one just to the DS of the air box? Just looked at it and its not real pretty but not horrible. the amp ground yes and all my big 3 stuff yes everything ive added has been cleaned and grounded properly. So that kinetik battery you linked up is better than an optima yellow top? I know when you buy optimas theres a brand name mark up but if I could get something better under $200 i would be happy.
 

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So I made a thread a while ago about my new system, no one commented but here it is http://www.focusfanatics.com/forum/showthread.php?t=458753

Anyways, Since the install ive had the ever so common light flicker which ive always had at idle and i still have at idle but now its MUCH MUCH less drastic. However initially after the install i was getting it all the time, didnt matter rpm or anything and it was bad, i mean real bad especially at idle.

So I did some research and found that it could be a number of things from bad battery, to bad alternator, to bad ground, to bad alternator plug, to its just a Focus thing deal with it.

Well I saw some flaws in my install, a big one being ground, the wire was too long and it was grounded to the same spot the internal fuse block was grounded to, I felt like i was robbing power from the fuse box so I changed it, went from 8gauge to 4 gauge and grounded it right next to the amp on the seat belt bracket. At the same time I installed larger power wire, cleaned up the mess of coaxial cable and installed a remote gain knob.

I also went ahead and did the big 4 upgrade.
-Battery negative to frame
-Battery negative to block
-Block to frame
-Alternator positive to battery positive

May also ground the alternator to block in the future, have leftover wire and I might as well right. Heres the kit I used ( http://www.sonicelectronix.com/item_86030_Belva-BBG3KT.html ) It didnt come with the 200 amp breaker (300 amps is recommended if you have a high output alternator, you could use an ANL fuse too if you want) and i had to buy a few extra connectors and some heat shrink to complete the job but who cares My local audio place quoted me $150 in parts alone[ohcrap] and the kit I bought had more than enough wire is quality wire and it took well to solder so I was more than happy.

Also, side note. Try your hardest to put your fuse or breaker as close to the battery as possible, my set up is not perfect but I did this for aesthetics and took precautions by double looming the trailing wire and made sure there were no hot spots so it wont be a problem in the future.

On top of all this I filled my trunk with more peel and seal, F the bad reviews on this stuff Im no expert and I dont live in Arizona heat but Ive seen some hot ass days in the last month and theres no smell or running plus it cost me only like $45 to fill my whole hatch, and when I say whole hatch I mean everything sides back floor actual hatch everything that is covered by carpet or plastic aside from the roof and it makes a world of difference, the number of vibrations ive eliminated...... well lets just say from the outside it sounded like a tin can before and now it sounds like a wet sponge, strange analogy but you get it right?

I also put in a Sirius XM radio, (Head unit is XM ready) I was able to install it without removing the head unit, SCORE... Pretty much if you really try the whole back side of the head unit is accessible without removing it. Not sure how i feel about serius XM yet $10 a month seems high especially for basic service and theres some good stiff on there but Right now im on the free trial period (which is full access $20 a month) and i wouldnt pay $10 for that. so weel see when my trial period is up. In any case I was a bit disapointed when the install instructions said I had to put the antenna on the outside of my car, yea forget that, I mounted it on my dash just by the DS pillar, it cuts out from time to time but reception is way better than any FM radio ive ever used. Sould have done some rearsearch on XM pricing before spending $50 on the box and antenna, live and learn.[facepalm]

So lets talk about my gain knob, I wanted it to be stealth.... I feel like paul walker in the original Fast and the Furious movie when I pop it out and use it. I mounted it in my ash tray and it works better than I ever expected, had to cut the mounting tabs off of the gain controller and remove the front cigarette holder ecig called of Aerotank Mega grate thingie from the ash tray but after that it just popped right in there and I used the original housing bolts to secure it, YEA!!!!!!!

I also Wandered down the ooh so dreaded chromed out isle of Autozone and found a cool license plate light that I used as my hatch light, mounted it under the passenger side hatch cover, cant be seen and throws 50X more light than the OE set up.

SO HERES THE PICS

500 rms 1k max output, monoblock. Pretty impressed with a run of the mill brand like MTX



This pic shows both block to ground and block to battery plus breaker location



200 amp breaker



Wire leads to battery



Ground spots



More ground spots plus power cable and fuse mount



Peel and seal teaser



XM antenna location



Kenwood headunit, base model



Flip up gain control



12" kicker compR with subthump box, guy across the street called the cops on me the first day I put it in, told them it was rattling his walls. Ass hole didnt have the balls to come over to my house and talk to me, yea I get it no one wants to hear my bass but for gods sake I was in my garage with the garage door closed and car windows up. I know he didnt come over because, I went over, knocked on his door and asked him. I think hees mentally disabled so I just dropped it.



Autozone light mounted



Hatch lit up


It was just fantastic build indeed.. There is plenty to learn and I would like to make similar changes very soon..
 

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Discussion Starter #8
Went with just a regular battery, after doing some research I figured I didnt need anything too fancy for the set up im running. I went with an Interstate, which has always been my go to brand I didnt go with what interstate listed for my car, I made measurements and went with the biggest one I could fit without modding the box. I did have to do some wiring and terminal mods because the terminals are on the opposite end of the battery, wasnt too hard though. As for dimming, theres none at all not even if I try, I still do however get a slight light flicker at idle. Nothing that is bad enough to even make me think about it though.

 

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Vince your Moderator
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With 500RMS you were not rattling the guy across the streets walls. He could just hear it that's all.
 

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When you're just running one primary battery under the hood, it's all about CCA. No reason to pay for the dry cell or brand name. You did exactly the right thing by buying the biggest battery you could find.
 

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Discussion Starter #12
With 500RMS you were not rattling the guy across the streets walls. He could just hear it that's all.
This is what the cop told me the report stated, I was flattered. The guy across the street is an ass hole. He called the cops on me almost a year ago because my jeep was parked in front of his house. I was outside washing my car when the cops came, I saw them looking at my Jeep and I asked what was up and they told me but also let me know what the law is and that I didnt have to move it if it hadn't been there more than 14 days. It had been there 4 days.
 

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Vince your Moderator
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So park it there for 13 days..........
 

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I know this thread is 2 months old now but advice

Run a ground from an alt mounting bolt to the frame or battery
Move your ground to a solid price of the rear subframe
Fuse breakers get weak, the more they pop the weaker they get. Pio tless as well because you should never pop a fuse unless the install is done wrong. Save money buy fuses do it right.
Fuse for the wire, its there to keep it from burning up and catching your car on fire.
The best battery is a try agm battery, they are designed for power draw.
Your not even getting 500rms to that sub. As you lists to music and the freq changes so does the power it gets.
That little sub in a sealed box on music wont shake windows.

Great clean install though wiring looks fantastic.

Look up mechman and singer alternators for an ho alt.
 
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