T-Line Build for Single Sundown Audio E8v3

[soBASED]

Sup guys! I've been mixed on what ideas I want to do for an enclosure, either smimple boxes tuned to 30hz or a T Line enclosure not sure on tuning tho. So here's the specs of the sub (just copied it off from emfcaraudio's website:
300 watts RMS
Re: 4.19 ohms
Fs: 52.7 Hz
Qes: 0.60
Qms: 3.39
Qts: 0.51
Le: 2.69 mH
Vas: 4.99 L
BL: 15.32 NA
Mms: 101.5 g
Cms: 89.76 uM/N
Sens: 82.6 dB 1w/1m
Bl^2/Re: 55.95
Xmax : 12mm one-way 70% BL
DEPTH = 5.118"
Suggested Box = 0.5 to 0.75 ported tuned to 35 Hz
I get all the math that I have to do but the only thing is, I don't really know what to tune to. Many of people on here and else where say tune to the subs Fs, but the E8v3 has a high Fs and I don't really know how it would sound on lows around 30hz (mainly decaf). This will be my first T line btw. This is going into the trunk of my 2012 Accord Coupe, I have a max width of 21.5" (due to the weird design of the trunk) and I'd like to keep it under 22" deep and max height of 9.5" (again due to weird design of trunk). I came up with a design but its not tuned to the subs Fs but here it is anyways:
Cone Area = 38.5 sq in (I didn't measure from half of the surround to the opposite side, half of the opposite surround as well, I guessed 7")
Port Length: 8ft (96")
Port Width: 5"
Port Height: 8"
5"x 8"= 40 sq in of port (close enough)
Tuned to 35hz
26.5"W x 21.5"D x 9.5"H
97.75" of port instead of 96
How's it look?

[Chris Hammer]

Tune lower then the fs...tune what you want it to be. My skar vvx10 has a low fs..but Im tuned lower. And my tline before that was way lower then the FS..on some shitty woofer too lol.

I think the rest of your specs are fine..Both my 1/4wave enclosures have had slightly more port area then cone area..and I like the sound.

Do you have some drawings or sketchup...cus Thats alot of port length in that little trunk I want to ssee the enclosure.

[soBASED]

Okay thanks man! Forgot to account for the internal walls of the port.. That'll add to the depth, If I made this enclosure out of 1/2" or plywood wood it make a noticeable difference than 3/4" ply? I already got like a 4x4 sheet of 3/4" but the 1/2" would take up slightly less space.. And not yet I did draft on paper in school today haha.. But I'll post a sketch asap!

[soBASED]

So I have finally sketch'd it up, came out good but I am a tad short on port length but I don't think that will really matter.. Here is an updated list of all box specs: Cone Area: 38.5

Port Length: 96” (8’) I came up with 85"

Port Width: 5”
Port Height: 8”
5x8= 40 sq in of port (close enough)
Tuned to 35hz
Enclosure Specs: 26.5”W x 22.25
How am I looking?

[ncochran]

sobased, you should totally do a build log lol. I have 3 e8 v3 d2s and am considering trying a t-line myself. I totally want to know how this turns out lol!!!

[JamieHoward]

sobased, you should totally do a build log lol. I have 3 e8 v3 d2s and am considering trying a t-line myself. I totally want to know how this turns out lol!!!

Totally.

[soBASED]

sobased, you should totally do a build log lol. I have 3 e8 v3 d2s and am considering trying a t-line myself. I totally want to know how this turns out lol!!!

Yeah deffintaley! Your 3 must pound dude! I'm an not sure when I will actually do it, I'm trying to do it soon, I need to order this router guide too, but I would like to get it done this month

[Joe X]

In the pic that 11 1/2" should be 10 3/4" it seems.

[soBASED]

In the pic that 11 1/2" should be 10 3/4" it seems.

Yes you are correct, I added the first port wall, idk why though. But thank you for pointing that out!

[soBASED]

I edited my image and calculations guys, cause I had a miscalculation. I fall 11" short of port, should that be any problem? The box is designed to fit in my tiny trunk that is why I can't really make the box any wider.