I was posting on another forum and decided I'd go ahead and do one here too.
I'll get pics of the equipment tomarrow. 4 18" btls fully loaded 4 memphis mojo 4kws 20ft net tuned to 36.1hz:
So there's my cheap table saw. It works great for what it is. That angle was cut free-hand with a jigsaw- even still it's damn near perfect
I started putting the sides and back together.
Pic of the back and the circle cutting thing I bought. It looks fancy, and it'll cut anywhere from 8" circles up to 50+ inch.
I'm making an interchangable port, so I had to make it this way. I tried using a that circle thing, but I broke the bit by rushing it. I'll just go exchange it tomarrow and try again (that was just a scrap piece of wood).
Some corner pieces that will be fiberglassed in place. I put a bottle of titebond II in there to show how big it really is. The final port will be 30"x8".
That little piece of wood will be where I'll countersink the threaded rod that will be bracing it. I really hate the look of threaded rod, so this will make it so you don't have to see it.
Ehh... We bought a fixer-upper house and had a few k worth of bills pop up with fixing it. (Whole new heat/cooling for the house). Since I had to pay for that my electrical upgrade $ is on hold.
I'll have 3-4 iraggi 260s by the end of next month hopefully, maybe 2 months tops (trust me when I say I'll be satisfied to go easy on the gain till then). I have 1 run of 1/0 now, but when I install the amps I'll put in the 3 other runs. I have 3 batteries now, I'll have 6 when I'm finished.
It's my daily driver. I don't want to compete only. I wan't to play music on it. I'm going to try 36hz at first, then 32 to see the difference it makes. 35-36 thats in there now sounds great. I'm sure it'll put up OK numbers, but fairly low for how much power/sub is in there because I want it to sound good too.
Last comp with 2 18s and stock charging it put up 150.2 at 40, (from 150.8 at 35hz in the other vehicle). I bassraced 149.9 with a decent alternator in the old vehicle, about 148 with stock. I'm sure I'll gain a good bit with a better charging system.
I already have optima yellows. I know there's much better, but no one sells ANYTHING else around here, soooo I'm going with those for now- something better later.
Because it's about where I'm tuned with those 2 18s and I like the way it sounds. Also I can get 240sq inches of port with 20ft net very easily. why- what do you think?
A tahoe. No, I had it tuned around 35, I'm sure it dropped a bit with as close as I had those to the rear door too, but it played almost flat from 32-42. New vehicle next to the old yukon.
since u say only 2-3" away - wont that like muffle the flow of air out the box (less rattle too) .....if were me i would like to have about a ft away but then u already built ur box ....
this has all be thought about. having the box a foot away would take away a lot of internal airspace. if its bad enough he can get a lil more room by taking off the panel in the back or something..
It does make a difference rovin, when i was testing my subs in my old blazer (the 2 dd9515's) my port was 4inchs away and hit like 151 on a AC and then when i moved it away about 8inchs i hit like 153's on the AC but the SQ was much better closer to it, it was also only like 2Krms... btw be prepared to beat the F*^@ outta that rear door
^^ "Ehh... We bought a fixer-upper house and had a few k worth of bills pop up with fixing it. (Whole new heat/cooling for the house). Since I had to pay for that my electrical upgrade $ is on hold.
I'll have 3-4 iraggi 260s by the end of next month hopefully, maybe 2 months tops (trust me when I say I'll be satisfied to go easy on the gain till then). I have 1 run of 1/0 now, but when I install the amps I'll put in the 3 other runs. I have 3 batteries now, I'll have 6 when I'm finished.
Again, it'll be beefed up properly when done."
I had two btls with 7.5 net each about 4-5 inches from the rear door, and it sounded great imo. Mainly just lowered the tuning a bit. If it doesn't work I get to do a new build , but I'm pretty sure it'll work good.
Also there's no way to get the space I need and still see out the windows without building that far back. I've thought about it a lot, and this is how I'm going with it, but thanks for the advice.
That's gonna be retarded loud but it looks like you're quite away from completion.It'll be cold outside by the time you get the charging all finished up.I can't wait to see that alt setup.
Yeah, I'll have the actual box build finished by this weekend if things go right, but I won't have the under-the-hood electrical work done for a while. Even with the voltage sitting happily at 13v or so it was stupid loud with two subs, so I figure even though the electrical will have to wait, it'll still be retarded.
Okay, 2 layers of mat and one of cloth later, I ran out. I got the bottom corners all covered good, but I'll be going to lowes today anyway. I didn't realize how much I was going to need.
Crappy 4.1 meg camera, and the lights hitting it wierd, but theres a bit of progress.
I'm buying one from dominick iraggi, no one around here does that kind of work, and I'm sure not willing to. I don't know about the lag lol. It's got ~300hp and more torque than that. I'm considering dropping in a 6.0 in the next year or so, but I'll probably just supercharge this one.
I live in Chicago and I have AC but I don't even use it anyways.I work in a warehouse and it gets hot in those box trucks so I'm pretty used to ridiculous heat.I used my AC once the entire year because this girl that I was with was complaining it was hot but after I dropped her a ss off I shut the AC off instantly
Lol.A hood scoop on an Astro van?Oh god lol...that would look sooo retarded but the charging would be good I'll tear out the AC before doing a raised up bracket lol.
Mock up of the port. Pieces line up nice, they're just not fastened together till I roundover the port. I cant work on it anymore for a while - have to do real work.
Tell me about it. I promised the wife she'd have a washer and dryer before I put my subs in, so I have to to some electrical work and put in the washer/dryer.
nice troy doin it right man with 4 260 amp alts and this thing is going to be so loud if you did 150.2 db with two 18's and stock alt. movin up to four 18's and good charging
Troy isn't out for a crazy high number on the meter.He's after the super crazy earth shaking lows But then again...he is doing an interchangeable port.
I wish it didn't have that sun roof At the last comp they told me I was hitting 155 with the subs, but the vibration was bringing me down to 150.2... From a sun roof that I know is going to get off track and leak...
seal it off better to do that with some extra work than break it......and yeah at 36 hz I would have broke my sunroof (it flexed up really bad) on my 95 meonte carlo z34 if I didnt close the stock slider and that was only a single 12 on 1500 watts and stock 105 alt.
I see. I don't know yet, I'll see how it handles it. I'm going to be sound deadening the roof and adding some stuff to it to lessen the flex. I know with the 2 subs in there it moves about an inch, so... I guess we'll see.
Okay, a bit of port work today. Got the port together. It's raining, so I'll have to wait for more glass, but it's coming close.
Glueing the pieces together before a few finish nails.. 3/4 round over bit on the router Sides of the port assembled Used a jigsaw to cut out the opening. Unfortunately I was about 1/16th of an inch off from straight in a few places, so I had to trim it up and sand it some. very close to perfect, but not quite. Still good imo.
Putting the face and the port together Just another angle. Then I routed the edge off again with the 3/4 bit. Dry fit before putting it in. VERY snug. Here's how the finished product will look minus the two layers of mdf on top and some bracing.
I don't know how well this pic shows it, but that's completely tight. I have to tap it in. Of course there's going to be a gasket behind there when I finish it up, I'm just debating painting the port or carpeting it to match (painting the inside black no matter what, just the outside.)
Ahh, just got the hoe back a few hours ago. I'll be yanking out the other subs and amps, then getting some pics everything together. ;)
I didn't have time to do the holes and it was too humid for 'glass, but tomarrow I'll finish that. Then carpet. Sunday a few people are coming over to help get it in- colby, you're more than welcome too.
Dude that is one well thought out project and executed with some mad skills! I'll be sure to keep this thread on my favorites till you finish this baby up.
Thanks! Circle thing is with the routers at lowes. ~40-50 bucks. Paul, thanks. Got one hole cut. It's 1/16th over 16.75 inches, but that won't matter a bit. I really am enjoying using this thing now. I don't have time to post pics 'cause I'm in a wedding about an hour and 25 minutes from now, I'll just have to finish up tomarrow. Pics tonight though.
colby mentioned me in a previous post. i was out of town when you met up with him and kevin and i missed your old install. But the progress on this is lookin nice. Cant wait to hear it
I'll be putting a 3rd layer on top as decoration, but it'll also help a bit too. Alex, I put that same setup in the new vehicle, (VERY temporary), and though it's down about 1db it still sounds about the same. If you guys wanted to meet up some time this week let me know, I hope to have everything finished by the middle of the week.
yeah i figured you would use them for now. id be happy to go there and help you out the only problem like colby said is us getting there. we'll see what kevins work schedule is for this week and unless something comes up we'll come over there with him one day.. but for now keep the pics coming and keep up the good work.
sorry, tired and late Yeah, I'd add more layers if space permited, but it sadly doesn't. the 3rd layer of baffle will be a beveled sheet to finish things off and hold amps-pics to come.
Some light hand sanding to get nice smooth edges, get off the little rough spots the router left (I had to do multiple passes because it's only a 1" bit )
Getting ready for the 1/2" threaded rod. You'll see it sticking out of the top before I put the trim plate on, but then it will be covered. Painted the port black, getting ready to carpet that this afternoon.
I have to go to a memorial for my wifes grandfather who died 1 year ago today. Then work on some plumbing around the house. Progress tomarrow if not tonight- I will be finishing the fiberglass so I can have it dry for tomarrow.
looking very good... i only wish you could have squeezed a slightly bigger box. anyways, it will be great and sound wonderfully bellow the window line. personally i would have tunned to 33ish. 4 15s in a tahoe is tight, so i know those 18s are extra tightish, 18s just need so much more air to sound correct.
If 4 18" BTL's don't get low enough for him at 36hz...!?!!?!?! LOL you guys have worked your standards up to an unbelievably high level. If they don't get low enuff for him...i say get a new fu<kin hobby.
36hz hurts my ears, i can tell a huge difference vs 32hz... i have messed with alot of boxes... I like it loww loww, in my throat, travelling far way further loww, not as loud on the mic & my ears type of loud...
he can have 6 18s, tuned to 40hz, that isnt going to be low enuff! not just cause its a 18 its loww Pit Bull
i think you guys misunderstood my post. it's just funny to me because that is such a ridiculous setup but you guys still nitpick about the finer details. i'm not hatin, it's cool that you guys are so experienced and knowledgable that you look at it like that.
I just know that if i sat in a car with that setup and listened to it, i'd never step out thinking "this is what could be improved..." cause i'd just be so blown away
how do you do the cuts on the table saw that are more then like 20" or whatever the fence is limited too? When ever i build a box i end up putting a straight edge on and using a skill saw and its a b!tch.
ive been camping in maine. its kinda in the middle of no where but i brouhgt my computer and i no the ppl here so i asked if i could use there internet for a wile and they said sure. i leave and go home tomarrow though.
if you do it by eye isnt there like a big chance it will end up like cruckid or something?
It's really easy. My table saw lets me cut around 25+ inches (half a sheet of mdf), but all you have to do is flip the board around and cut off the smaller section ;) Yes, I love looooowwww freq. bass
"Let's say [for some odd reason] it doesn't or barely gets as low as when he had 2 BTL's. He wouldn't be too impressed and want to tune lower..." Took the words from my mouth. It should get the lows like I want, but if not I already have extra baffles made for new ports- I'm only an hours work from another frequency ;)
Ehh it's a bit above the window line, and the amps will def. pass it.}
Oh, and I just got back from the family thing, still working on plumbing- I'll be fiberglassing tomarrow evening instead of tonight.
