Sneak Peak at the new system

[S8track16]

The upgrading is underway again, 600RMS is not enough. I am planning on competing in the Street Stock category <2000RMS, 1 battery, etc.

So the new amp is the t1500bdcp, does around 1800RMS @ 1ohm, doing the big 3 and running power/ground from front to back with Knukonceptz Kolossus Kandy 0 Gauge capable of 375A. Since I can only have 1 battery in the stock category, I will be getting the XS Power D3400. Currently I don't have a subwoofer picked out, but it will most likely be a Skar Audio ZVX-12 or Sundown Zv3.

I think thats everything.

http://i44.tinypic.com/2z7j1i8.jpg

[sleepyalero]

Nice

[JLw7123]

Rockford fosgate amps are underrated they can do up to a 1000 Watts rms over the rated rms. Great looking system.

[S8track16]

The 1/0 Gauge wiring came in today from KnuKonceptz, 22lbs for 50ft. 100% copper.

http://i40.tinypic.com/2u5qt1u.jpg

[S8track16]

Another thing that showed up today.

http://i40.tinypic.com/29wwe49.jpg

[tw0123]

going green eh? tired of the white and red theme or just different accents in different areas? I noticed you switched your headlights from white to red... what about the tails?

[S8track16]

the green is mainly for under the hood, the tails are still white but I'm trying to make my own LED tails that are colour matched

[S8track16]

Also, I got tired of the white plastidip, it was impossible to keep clean.

[S8track16]

One step closer, got the DC Level 4 12" Dual 1 Ohm Subwoofer, underrated at 1400 RMS. I still need a XS Power D3400, if someone you know is selling one, let me know.

http://i44.tinypic.com/6encwh.jpg
http://i42.tinypic.com/2gvo75h.jpg

Also a pic of the gauge pod, not sure what color I'm going with yet, also need gauges.

http://i41.tinypic.com/21ki54h.jpg

[tw0123]

Aeroforce interceptor scan gauge... monitors something like 100 parameters on the car and then get an oil pressure sensor since the low oil light will be blocked... the interceptor gauge has a dual display so you set one to volts to monitor your system and the other display can scroll through the other settings :) i have one and its awesome!!

[@mgaw23]

lets see some pictures of it all installed

[S8track16]

I can't install it yet, I still need to make a box, one for daily, one for spl. Also need sound deadener for the entire trunk and possibly roof of the car, and a few other little installation pieces.

[JLw7123]

oh very nice the DC subs are underrated i almost bought one but got a JL w7. Hope you have an amp and electrical system to power it. i am going to ask some people if they know anybody with an xs power battery for sale. I am a member on a couple car audio forums.

[S8track16]

What size of W7 do you have? And ya my amp should do well, its the BDCP model, rated for 1500 rms @ 2 ohm, does around 1700-1800, doing the big 3 and all other wiring with 0 gauge (5145 strand).

If you find a battery let me know. thanks.

[JLw7123]

I have a the jl 12 w7. I have yet to put it back into my car.

[S8track16]

Test Fitting the new box, it wasn't easy.
http://i1314.photobucket.com/albums/t573/S8track16/20131019_112438_zpsee2b9f88.jpg (http://s1314.photobucket.com/user/S8track16/media/20131019_112438_zpsee2b9f88.jpg.html)
http://i1314.photobucket.com/albums/t573/S8track16/20131019_112452_zps2dc8ab6c.jpg (http://s1314.photobucket.com/user/S8track16/media/20131019_112452_zps2dc8ab6c.jpg.html)

After painting the box, cutting out the subwoofer area (1 1/2" front baffle), installing the terminal box and placing back in the trunk.

http://i1314.photobucket.com/albums/t573/S8track16/20131020_102639_zps5fd9a8e9.jpg (http://s1314.photobucket.com/user/S8track16/media/20131020_102639_zps5fd9a8e9.jpg.html)
http://i1314.photobucket.com/albums/t573/S8track16/20131013_130511_zps154a473d.jpg (http://s1314.photobucket.com/user/S8track16/media/20131013_130511_zps154a473d.jpg.html)

2 runs of 0 gauge

http://i1314.photobucket.com/albums/t573/S8track16/20131013_130500_zpsaf250008.jpg (http://s1314.photobucket.com/user/S8track16/media/20131013_130500_zpsaf250008.jpg.html)

Cleaning up the wiring

http://i1314.photobucket.com/albums/t573/S8track16/20131013_134937_zpsf9fbf321.jpg (http://s1314.photobucket.com/user/S8track16/media/20131013_134937_zpsf9fbf321.jpg.html)
http://i1314.photobucket.com/albums/t573/S8track16/20131013_134932_zpsa37f4763.jpg (http://s1314.photobucket.com/user/S8track16/media/20131013_134932_zpsa37f4763.jpg.html)

[tw0123]

Damn Brandon, that looks great!! need to hear how loud that thing is!! wow

[S8track16]

in 2 weeks it should be completed, once i get the d3400

[S8track16]

Got the d3400 installed. Had to make some modifications to the battery mount since this battery is wider and longer. If I didn't have an aftermarket intake, the battery wouldn't fit. Still a tight fit and the battery terminals just slighty hit the hood when closed. Also installed an intellitronix voltmeter, 14.6v when the car running, drops to 14.4 when I hard the sub playing.

http://i1314.photobucket.com/albums/t573/S8track16/20131121_104330_zpsa0190fa7.jpg
http://i1314.photobucket.com/albums/t573/S8track16/20131121_104333_zps4390ea45.jpg

[billytheman1188]

Nice. Looks good! That's a CLEAN engine bay :coolio:

[xXManwhoreXx]

Dude if your doing a dope system...... tweeters in the gauge pod!

[S8track16]

I would have to get someone to make them for me, I'm not the best at fiberglassing. 2" bullet tweeters would be cool.

[dudbud95]

Dangg..thats super clean. Nice job man!

[Babyblue]

looking good!

[S8track16]

Finally it has been a bit warmer (-3C compared to -30C) than usual and I was able to get some work done. Pulled the amps and sub out of the trunk and put one layer of knukonceptz kolussus sound deadener on the entire trunk floor and some on the sides. The deadener makes a huge difference and it should when it weighs 1lb per sq. ft. Then put the carpet back in and routed the wires through. Also put the gauge pod in with the voltmeter.

http://i1314.photobucket.com/albums/t573/S8track16/20140212_145103_zps592b8601.jpg (http://s1314.photobucket.com/user/S8track16/media/20140212_145103_zps592b8601.jpg.html)

http://i1314.photobucket.com/albums/t573/S8track16/20131219_115526_zps575efb6e.jpg (http://s1314.photobucket.com/user/S8track16/media/20131219_115526_zps575efb6e.jpg.html)

http://i1314.photobucket.com/albums/t573/S8track16/20131219_122932_zpsf141b190.jpg (http://s1314.photobucket.com/user/S8track16/media/20131219_122932_zpsf141b190.jpg.html)

[S8track16]

http://i1314.photobucket.com/albums/t573/S8track16/20131231_123751_zps848ae004.jpg (http://s1314.photobucket.com/user/S8track16/media/20131231_123751_zps848ae004.jpg.html)

[Nas Escobar]

That's some serious shit right there. How much did you pay for the wiring?

[S8track16]

You don't want to know lol. But nearly $300.

[S8track16]

Had to add an mdf trim piece so it could actually fit and not hit anything when the door is closed.

http://i1314.photobucket.com/albums/t573/S8track16/20131231_161506_zps4544a601.jpg (http://s1314.photobucket.com/user/S8track16/media/20131231_161506_zps4544a601.jpg.html)

[Nas Escobar]

I used my stock trim piece. It had a tweeter there from factory so yeah.

You should have done the same. Calls for less attention

[S8track16]

My tweeters are in the factory position, they are just too large.

[S8track16]

Actually turned on my car for the first time since September, with the d3400, car started up right away. Installed the tweeters/ crossovers and put my 4 channel amp in to test it out. I'm pretty impressed with the crescendo mid/highs so far, they are extremely loud and clear. Also hooked up my ddm tuning 8000k HIDs. Installed them, turned on the car and nothing, had the switch the plug the opposite way for some reason, then they worked fine. I just checked the brightness this evening and the HIDs are brighter than the high beams.

http://i1314.photobucket.com/albums/t573/S8track16/20140215_172545_zps72aecacd.jpg (http://s1314.photobucket.com/user/S8track16/media/20140215_172545_zps72aecacd.jpg.html)

[negolien]

Wonder if a dc lvl 2 12" would fit in my MTX jackhammer box hole. 2 of those would do me right I think :<)...How much cutting to get the XS in?

[S8track16]

If you have a factory airbox, it won't fit. I had to cut the one end off of the mount completely as well as the metal mount from underneath the factory airbox.

[negolien]

LOL figures thanks though :>) I had been looking at the XS batteries as an alternative to the Optima. Maybe a smaller one will fit. Got a grand coming to me in tax refund thinking of 17 inch rims and tires. Won't take but about 400 to do my 4x6's, amp, deck and back up camera. I figure I can save about $170 per week and when the refund gets here in 3-4 weeks have enough to do all of it. Below are the rims and tires I' am looking at. Thinkin of going 17 due to low pro's maybe looking funny with stock height. Thoughts on that? The rims also come in the last ones thinking silver would look best with my tan color.

http://www.americastire.com/dtcs/findTireDetail.do?c=5&rcz=95842&ar=45&rf=true&rd=17&rc=CANINT&cs=225&dVeh=dVeh&ra=filterTireProducts.do&fl=&tc=YOKHZZ&yr=2001&pc=43627&vid=004942


http://www.americastire.com/dtcs/findWheelDetail.do?c=3&rcz=95842&rc=CANINT&dVeh=dVeh&bp=&fl=&tc=MBMALP&yr=2001&pc=50288&wd=17&rw=&vid=004942

http://www.americastire.com/dtcs/findWheelDetail.do?c=4&rcz=95842&rc=CANINT&dVeh=dVeh&bp=&fl=&tc=MBMALP&yr=2001&pc=50236&wd=17&rw=&vid=004942

[S8track16]

If you are going to get aftermarket rims, you could also just get some lowering springs as well, rather than the complete setup. I have eibach springs, I would have liked the front to drop a bit more since I have a lot of weight in the trunk, it balances out.

[tw0123]

Brandon... i had the same issue with the eibachs... even the specs show the rear drops more than the front... i switched to h&r springs because they offer the reverse... front frops more than the rear for that aggressive stance, but with a heavy system it balances it out!!

[negolien]

thanks what's a rough estimate on price? I wouldn't need any shocks or anything just the springs?

[S8track16]

I got my eibach springs for 150$ and installation was around $80 IIRC. And I never bought new shocks.

[negolien]

Thanks ya know I used to get emails from some website offering things to upgrade my car from springs and struts to tires and rims but I stopped accepting the spam mail. Wish I could remember the name of them.

[S8track16]

Was busy today, made a lot of progress on the trunk today, wiring is all ready for the T1500, speakers are all hooked up and sound great. Will probably add some decals to the back of the subwoofer box. Tonight I will take a picture when the etched plexiglass is lit up.

http://i1314.photobucket.com/albums/t573/S8track16/20140218_140326_zps4e666145.jpg (http://s1314.photobucket.com/user/S8track16/media/20140218_140326_zps4e666145.jpg.html)

Had to make my own tweeter pod out of mdf with some black and grey carpet.

http://i1314.photobucket.com/albums/t573/S8track16/20140218_114559_zps1e60a433.jpg (http://s1314.photobucket.com/user/S8track16/media/20140218_114559_zps1e60a433.jpg.html)

[tw0123]

Damn man that looks sweet!! Did you etch the Plexiglas yourself or have it made for you?

[S8track16]

Thanks, I made it, bought an air eraser to do it.

[S8track16]

The 8000k HIDs

http://i1314.photobucket.com/albums/t573/S8track16/20140218_180557_zps12898416.jpg (http://s1314.photobucket.com/user/S8track16/media/20140218_180557_zps12898416.jpg.html)

[S8track16]

Added in the t1500, and DC subwoofer (purchased the last set of RCAs needed), added carpet to the subwoofer box, and slightly angled the one panel. Also removed the rockford fosgate windshield decal.

http://i1314.photobucket.com/albums/t573/S8track16/20140219_123445_zpsd2368bd1.jpg (http://s1314.photobucket.com/user/S8track16/media/20140219_123445_zpsd2368bd1.jpg.html)

http://i1314.photobucket.com/albums/t573/S8track16/20140219_105614_zps231777b6.jpg (http://s1314.photobucket.com/user/S8track16/media/20140219_105614_zps231777b6.jpg.html)

[negolien]

So one amp for the sub one for 6x9s?

[S8track16]

The T1500 for the subwoofer and the t400-4 for 2 Infinity Kappas 6.5s in the front doors, 2 crescendo ft1 super tweeters and 2 crescendo pwx 6.5s.

[negolien]

Nice

[S8track16]

Made some changes today. Cut-out the DC logo, router-ed the edges and wrapped it in black vinyl. Then cut-out a DC logo insert and painted that black/red and added red LEDs behind it. Will post some pics later at night to show to LEDs in action.

http://i1314.photobucket.com/albums/t573/S8track16/20140421_133428_zps5f1d6982.jpg (http://s1314.photobucket.com/user/S8track16/media/20140421_133428_zps5f1d6982.jpg.html)

http://i1314.photobucket.com/albums/t573/S8track16/20140421_133635_zpsb86466d3.jpg (http://s1314.photobucket.com/user/S8track16/media/20140421_133635_zpsb86466d3.jpg.html)

http://i1314.photobucket.com/albums/t573/S8track16/20140421_135006_zpsd552482c.jpg (http://s1314.photobucket.com/user/S8track16/media/20140421_135006_zpsd552482c.jpg.html)

http://i1314.photobucket.com/albums/t573/S8track16/20140421_152633_zpsd3c2371a.jpg (http://s1314.photobucket.com/user/S8track16/media/20140421_152633_zpsd3c2371a.jpg.html)

[negolien]

Very nice bud well done

[Papa Rad17]

Very nice bud well done

X2 :agree: :thumb:

[negolien]

Is that a crossover between the two amps? Do you only have one battery? Could you get a shot of your distribution box? Finally do you use any kind of processors or just the head unit, amps, crossovers and speakers?

[S8track16]

Is that a crossover between the two amps?

Yes, they are audio pipe crossovers from eBay. I'm using these so I can hook up multiple speakers to my t400.

Do you only have one battery?

Yes, I have the XS Power D3400 under the hood and no batteries in the trunk.

Could you get a shot of your distribution box?

I'll post a picture up a bit later.

Finally do you use any kind of processors or just the head unit, amps, crossovers and speakers?

I currently don't have any sound processors but my get one in the future if I get more amps and speakers. For now, the deck and settings on the amp are good enough.

[S8track16]

Here is the distribution block, it's a Knukonceptz KNF-60. I have a run of 0 gauge (power and ground) going in, and 4 gauge going to the amps.

http://i1314.photobucket.com/albums/t573/S8track16/20140422_104944_zps68334225.jpg (http://s1314.photobucket.com/user/S8track16/media/20140422_104944_zps68334225.jpg.html)

[negolien]

Awesome possum thanks bud :p I think my only issue is finding a block that's one in and 3 out. I was also going to go 0 gauge power and ground and maybe 8 gauge for the 3 amps since they will only be 45/150 100/300 and 500/1000 I think 8 should be ok shouldn't it?

[S8track16]

8 gauge should be good enough, I had 8 gauge on my alpine mrp-m500 and it was fine.

[S8track16]

https://www.youtube.com/watch?v=T0W595r3S9g

Video from a couple weeks ago.

Also did this:
http://i1314.photobucket.com/albums/t573/S8track16/20140428_182927_zpscdbd9b40.jpg (http://s1314.photobucket.com/user/S8track16/media/20140428_182927_zpscdbd9b40.jpg.html)

[negolien]

You have any issue or thoughts on pressure from sub or subs beating on the cone of the 6x9's?

As a side note hahah my alts right on top of the motor should be super easy to swap out for the HO coming. You have any issue with yours or is yours still stock?

[S8track16]

The port is forward and close to being sealed from the trunk so there won't be an issue with the 6.5s.

I wish my alt was on top, I still have the stock one installed but I have the 250a singer alt waiting. Not sure if I want to attempt to change it myself.

[negolien]

Thanks wondering since my box is ported if I should consider leaving the 6x9 holes open and boxing the Kappa's. I wonder how much the pressure on the 6x9's might hurt them.

[S8track16]

I think they can handle quite a bit of pressure before anything bad happens.

[negolien]

Thanks I don't want to damage them. This will probably be the last upgrade for me unless later I decide to throw some Polk's in the trunk. Damn Fry's is always having that sale for $150 and well I just might not be able For resist for ever lol.

http://www.frys.com/product/5481739?site=sr:SEARCH:MAIN_RSLT_PG

[JonStoltz]

dude how did u get these big pics up, im trying to do the same

[JonStoltz]

trying to get those pics up of my installation and wont let me cause of size

[S8track16]

Upload them to photobucket and copy the url image links into the posts.

[negolien]

Upload them to photobucket and copy the url image links into the posts.

Yup photobucket is what I use also. You can use thumbs too then when we click em they get bigger. Interested to see how things are going :<)

[S8track16]

The twin arrived today, time to design a new box and seal off the trunk.

http://i1314.photobucket.com/albums/t573/S8track16/20140508_173712_zpscc5b8b57.jpg (http://s1314.photobucket.com/user/S8track16/media/20140508_173712_zpscc5b8b57.jpg.html)

http://i1314.photobucket.com/albums/t573/S8track16/20140508_173719_zps4a8ef2b6.jpg (http://s1314.photobucket.com/user/S8track16/media/20140508_173719_zps4a8ef2b6.jpg.html)

[negolien]

We should start a pool to see what the first part to rattle off is :p

[S8track16]

Lol, my rear bumper is getting a bit loose on the sides, i'll have to keep an eye on it.

[S8track16]

Rather than letting my other sub sit on a table, decided to take apart the front of my current box and change it up for 2 lvl 4s.

http://i1314.photobucket.com/albums/t573/S8track16/20140525_145749_zpsaa0aa587.jpg (http://s1314.photobucket.com/user/S8track16/media/20140525_145749_zpsaa0aa587.jpg.html)
http://i1314.photobucket.com/albums/t573/S8track16/20140525_145752_zps71d1d228.jpg (http://s1314.photobucket.com/user/S8track16/media/20140525_145752_zps71d1d228.jpg.html)
http://i1314.photobucket.com/albums/t573/S8track16/20140525_151349_zps4db6ba03.jpg (http://s1314.photobucket.com/user/S8track16/media/20140525_151349_zps4db6ba03.jpg.html)
http://i1314.photobucket.com/albums/t573/S8track16/20140525_151428_zpsbcff4bc4.jpg (http://s1314.photobucket.com/user/S8track16/media/20140525_151428_zpsbcff4bc4.jpg.html)
http://i1314.photobucket.com/albums/t573/S8track16/20140525_180115_zps3214d6eb.jpg (http://s1314.photobucket.com/user/S8track16/media/20140525_180115_zps3214d6eb.jpg.html)
http://i1314.photobucket.com/albums/t573/S8track16/20140525_181921_zps92850a2f.jpg (http://s1314.photobucket.com/user/S8track16/media/20140525_181921_zps92850a2f.jpg.html)

[tw0123]

lmao!! good job Brandon!! those subs make that box look tiny hahaha!!!

[negolien]

The volume for two is the same as 1? How much power now the same or you get a different amp?

[S8track16]

Same amp but it's wired to 1 ohm so I get a bit more power. The volume is half now so my tuning is around 40hz. It will be used as a temporary setup, or at least until the July 13th competition. 40hz= higher spl number

[tw0123]

Sweet man. Where is this competition on the 13 th?

[S8track16]

Ottawa boomfest

[tw0123]

Sweet. I'll be deep in work that day unfortunately. Just found out its the Lindsay downtown's annual classics car show that same Sunday.... they're expecting 800 cars to full downtown. Can't afford to pass up the potential business that day!

[S8track16]

Damn, 800 cars downtown, is there enough room for that? And ya, business should be really good that day.

[tw0123]

Yeah it's a tight squeeze for sure! It's usually my second busiest day of the year but the last couple years they've let outside food vendors in so it's sucked. I got together with some of the other restaurants in downtown and complained so we'll see how this year goes! :)

[S8track16]

Decided to make a new subwoofer box actually meant for two of these subwoofers. Around 2 cu ft. per chamber and tuned to around 31-32hz.

http://i1314.photobucket.com/albums/t573/S8track16/20140610_192231_zps59bb03f4.jpg (http://s1314.photobucket.com/user/S8track16/media/20140610_192231_zps59bb03f4.jpg.html)

http://i1314.photobucket.com/albums/t573/S8track16/20140611_101355_zpscea2f1db.jpg (http://s1314.photobucket.com/user/S8track16/media/20140611_101355_zpscea2f1db.jpg.html)

http://i1314.photobucket.com/albums/t573/S8track16/20140611_121719_zpsc5c40b1f.jpg (http://s1314.photobucket.com/user/S8track16/media/20140611_121719_zpsc5c40b1f.jpg.html)

http://i1314.photobucket.com/albums/t573/S8track16/20140612_080955_zpsf5e02530.jpg (http://s1314.photobucket.com/user/S8track16/media/20140612_080955_zpsf5e02530.jpg.html)

http://i1314.photobucket.com/albums/t573/S8track16/20140612_185300_zps420ea45e.jpg (http://s1314.photobucket.com/user/S8track16/media/20140612_185300_zps420ea45e.jpg.html)

http://i1314.photobucket.com/albums/t573/S8track16/20140612_192905_zpsbb4b3cce.jpg (http://s1314.photobucket.com/user/S8track16/media/20140612_192905_zpsbb4b3cce.jpg.html)

[tw0123]

Looks good man!

Is that divider made of melamine or mdf? I'm thinking of doing that for mine but it'll be where the arms if the trunk come down in the wheel wells....

[S8track16]

Thanks, it's all MDF, the port is painted white.

[03Alerosil]

Very cool set up. I really like it. DC subs hit hard.

[S8track16]

Thanks, and yes, they sure do!

[Nas Escobar]

So how exactly did you "tune" your box for your desired hertz?

[S8track16]

I used a box calculator app and sometimes Torres box calculator. You input your desired outer box dimensions, size of wood, subwoofer and other displacements and then you can determine the inner dimensions of the port that helps you achieve the tuning frequency you want as well as the net box volume. For my case, I wanted the tuning fairly low (30-32hz) and needed the box to net 4 cu. ft. or 2 cu. ft. for each sub.

[Afugy]

So are you going more for looks than comp? Port looks a little thin for the height, drivers are a little to far a way from the port. 3/4 MDF isn't as stiff I ever like it to be, last box I had in the Alero was 4cubes with 1.5" of MDF fiberglassed on the inside. Did 143.6 at the dash at 40hz. I have to say all your work looks very clean. Grounding to the strut?

[S8track16]

What do you mean that the drivers are too far from the port? The front baffle is 1 1/2" but the rest it 3/4". And the front battery is grounded to the strut and I have one run of power and ground from the front to the back.

[negolien]

:popcorn: this should be interesting..

As a side note you ran both power and ground to the front battery right? I heard someone talking about that just wondered if you could give me some feedback on that.

[S8track16]

Ya, I have a run of power and ground from front to back, I did this because im adding a second battery in the trunk, a pc 2150.

[negolien]

Ah gotcha someone said they just got a better ground running the amps ground back to the battery I was like hummm... Lotta cable any thoughts on this? Wires coming in this afternoon might take pics if I get home early enough can't wait till this weekend.

[Afugy]

First off, the bigger the speaker the more directive or focused the SPL is, this is how line array speaker systems work. The F factor in the line array is how close the drivers are. The closer multiple drivers are the more they act as one big driver. The port acts like a speaker but on a bandpass. I'm not trying to go into to much detail.

Also important know that the electricity in the car flows from the negative to the positive. That being say about the negative, what do you think is going to allow more power to flow, all the metal in your car or one run of 1/0? That's why it is so important to upgrade grounding around your battery and alternator to the cars body.

Batteries don't produce power they only store power, an alternator is the only way get more power. Don't bother adding a second battery unless you plan on running your system with the car off for extended time. A second battery will only cause extra stress on the alternator. Also Watts/Volts=Amps so 2000w/14.4volts= 138.8 amps, the stock alternator is only 105amps = dimming lights and stressed battery.

Check out my album http://s215.photobucket.com/user/afugy/library/ I ran the speaker department for an audio company.

[Afugy]

After looking at the port again in the pictures, I'd like to add. It's hard to tell from the pictures but a ports height to width should not exceed 8 to 1 at any point inside the port, exceeding 8 to 1 can cause port noise, me personally I would take it even farther to 6 to 1 on anything under 40hz. The wedge thing at the back of the port is doing nothing for you, if you wanted wind that's one way to get it.

I hope you don't take any of this as insulting, I'm just trying to help. You really do have the skill to build it.

[S8track16]

The run of ground from the front to back is to connect the second battery up once I pick it up. The alt and battery are grounded to the chassis but I wanted the amp grounds to come from the battery since I had problems which chassis grounds in the trunk before.

Also, with the stock alt, I have never had any issues with light dimming with the xs power battery. So are you saying that I should run 5000w without extra batteries because it causes strain on the alt. This doesn't really make sense based on what I have heard from people that do this for a living. As a side note, my Singer 250A alt is arriving in a couple days so that won't be an issue.

Another thing, how does the wedge in the back of the port apparently not do anything? People do this all the time to direct the airflow from each chamber so they don't interfere with one another. If that wasn't there, the air produced from the subwoofer would try to enter the opposite chamber.

A lot of the info that you posted seems contradicting to what I have been told and learned from people who have built many systems over the years.

[negolien]

yeah second battery stuff makes sense. They guy that was talking about the long ground run to battery in the post I was reading on another site was just using the one saying the ground to towers or body sucked I was like hum... wtf lol is that true?

Did you have to send that singer back for him to fix?

[S8track16]

Ya, I sent the alt back in and it's already fixed (just some slip rings and tightening of the regulator bolts) and should be here around early next week.

[negolien]

Nice glad to hear it will be sure to post up pics when I do mine and my wire this next week. The black powder coated DB should look decent on my ride with the blue 0 gauge big three.

[Afugy]

If you ground to the strut tower you wont have a problem with grounding.

You can't direct airflow in the port, you DONT want airflow at all. You want sound moving threw the port. If wind speed is over 10% the speed you will have port noise. Those people that have done the wedge have no idea how sound waves work. Making the port area smaller with the wedge only cause the waves to scatter more after the wedge causing destructive interference in the port.

I've been doing this for 16 years, worked for one of the largest sound companies in the world as the Head of the Speaker Department. Last install I did I used 2x 8 inch subs using the back seats to make a 6th order bandpass on 400 watts and still do 132db on the mic in a 48 chevy.

[AleroB888]

Decided to make a new subwoofer box actually meant for two of these subwoofers. Around 2 cu ft. per chamber and tuned to around 31-32hz..........

http://i1314.photobucket.com/albums/t573/S8track16/20140612_192905_zpsbb4b3cce.jpg (http://s1314.photobucket.com/user/S8track16/media/20140612_192905_zpsbb4b3cce.jpg.html)

Nice work!

I don't think the distance between the drivers would cause a loss of output at very low frequencies, like below about 50-60 hz. At 100-200 hz, possibly, depending on where they cross over. Outside the car up on a stand they might lose some output, but not in the confined space of that car.

It makes no difference what direction the current flows, the result is mathematically the same, and depends on the resistance in the circuit. It is usually easier and better to ground with a short cable to the chassis, if the grounding point is chosen carefully. If you have a negative cable already run to the trunk from a battery near the engine, just connect another negative cable to a point in the trunk and see if the voltage increases. If it does, then disconnect the longer cable and check again.

That port is a very complex situation with the two enclosures feeding into one opening. The linear distance between the backs of the drivers to the large port opening can affect the tuning, as well as the mass of air in the port. Boggles the mind! I guess if the computer app used a model specifically for that, you should be ok. The other variable on the port is the length of the duct, which can reinforce or cancel certain frequencies. That can be an advantage, if you choose an optimum crossover point. If the port does not work out there is a fairly easy way to correct it, but I'm interested to see how it sounds now, and if the box actually did achieve its target tuning of 31-32 hz.

[negolien]

Man that looks nice well done bud.

[S8track16]

Won first in rookie 1 with a 143.2db at 41hz (TNE) and averaged 136.8db on music. Also placed first in bass race 139.9 due to the other competitor going over, first in street trunk db drag and third in woofer cooker 260.

[negolien]

Won first in rookie 1 with a 143.2db at 41hz (TNE) and averaged 136.8db on music. Also placed first in bass race 139.9 due to the other competitor going over, first in street trunk db drag and third in woofer cooker 260.

Booya!!!!:pimp: I guess that answers the question of your box build well done sir. Not only do you build a rocking system but you are always willing to help the other members and we appreciate it.

[tw0123]

Congrats Brandon good show bud! :)

[S8track16]

Thanks guys.

[S8track16]

http://i1314.photobucket.com/albums/t573/S8track16/20140714_094359_zps63caae1e.jpg (http://s1314.photobucket.com/user/S8track16/media/20140714_094359_zps63caae1e.jpg.html)

[S8track16]

First of all, the alternator is working and voltage is stable at 14.6v.

http://i1314.photobucket.com/albums/t573/S8track16/20140715_133637_zps1cd23433.jpg (http://s1314.photobucket.com/user/S8track16/media/20140715_133637_zps1cd23433.jpg.html)

When I first got the alternator back and installed it, voltage was once again at 17-18v meaning that the regulator wasn't working. Apparently, the light and sense plug that goes into the alternator only had a voltage of 5v rather than the 12v that is required to turn the regulator on. So I tapped into a switched power fuse and made sure the plug was getting the required voltage. Turned the car on, and the alternator was working fine.

I'm not sure if the plug only needs to be 5v for the stock alt or if I had a short in the wire somewhere. I figured I should let everyone know my situation in case you run into the same thing when changing to a high output alt.

[negolien]

Scary most people wouldn't know they would just put it on and expect it to work. Going to take mine over to orielly's next weekend to check it before putting it in. Not thinking it will catch something like your issue though.

[S8track16]

It is scary. If i didn't have a voltmeter in the gauge pod, I could have fried everything at 18 volts.

[negolien]

I do have that one in the distro think that would work?

[S8track16]

Ya it would show the voltage. You can also check the battery with a multimeter when it's first installed.

[tw0123]

Only thing I can see being an issue with the display being on the distro block is that it's behind you.... with a pillar pod or one in the cubby below the radio will help see a problem faster....

[Afugy]

Booya!!!!:pimp: I guess that answers the question of your box build well done sir. Not only do you build a rocking system but you are always willing to help the other members and we appreciate it.

To bad a box that was should have peeked at 30 to 32hz peeked at 41hz.

[S8track16]

Afugy, are you sure that the peak spl should be the same as the box tuning frequncy?

[AleroB888]

Afugy, are you sure that the peak spl should be the same as the box tuning frequncy?

Well, I'm not sure it should be the same. There are many possible alignments for those or most other woofers, for one thing. Some of them involve equalization of the extreme low frequencies to bring up the output at the box frequency. While it is possible in theory to get flat output below the driver's free air resonance (in this case about 40 hz), I would have expected a drop in output at the box tuning frequency in practice.

[Afugy]

Lower frequencies are harder to get greater SPL but to tune your box to 31 and peak at 41 is way off. I've never trusted any of those box programs. I've used them to make 3 test boxes and not once did they come out right when I tested them on Smarrt. Peaking that far off means the frequencies that you tuned your box to are being canceled out, from A. speakers being poorly spaced to your port (should cause it to be that far off though(note. if the box was firing into the trunk it would not matter because you turn your trunk into a 6th order bandpass)). B. Splitting the port cause air speed to exceed 10% the speed of sound and you're just getting port noise below 41hz.

[AleroB888]

The thing is, if in fact the peak bass output is around 40 hz and drops off below that with an f3 of about 28hz, this project result does appear to closely follow a known alignment. (I know the O/P used a higher box volume, but that can work better in practice).

If you compare the manufacturer's specs with the data in the chart, it tracks well with the predicted ratios for a No. 7 C4 vented box.

Total Speaker Q Value (Qts): .489
Free Air Resonance (Fs): 37.9 Hz
Equivalent Compliance (Vas): 27.38 liters
Suggested Box Volume (VB): 1.50³ ft

NO. 7. Type .....C4
Ripple.... 0.13 dB
f3/Fs........ 0.729
fB/Fs.......0.829
VB/Vas......1.372
Qt..............0.466

Not only that, I think for normal music input, around 40 hz is a good place to have strong output. I'll bet that system rocks! Anyway, the O/P built a solid vented system that has to be considered a success.

[negolien]

I concur sir. Do we know how they run these as far as what tone they were feeding it to begin with? I' am interested in how they conduct these now. It has me curious.