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-   -   I built an exhaust! (https://www.miataturbo.net/prefabbed-turbo-kits-3/i-built-exhaust-8517/)

miataspeed1point6 03-27-2007 06:02 PM

I built an exhaust!
 
As the title says, I built an exhaust. I used a stock SRT-4 system. I only used 1 tip, but it looks great! I will get pictures of it and hopefully a sound clip. It sounds pretty much just like an SRT-4, which is kinda neat. Just happy I got rid of the stock system!

Braineack 03-27-2007 06:16 PM

omg no pic, ban.

miataspeed1point6 03-27-2007 07:37 PM

I'm workin on it!

miataspeed1point6 03-27-2007 07:53 PM

5 Attachment(s)
It stopped raining, so I got pics!

Attachment 216740
Attachment 216741

Nice large tip, better than the stupid stock one.

Attachment 216742
Attachment 216743
Attachment 216744

So what does everyone think? I'm in love with it, now my car has some bark to go with it's bite.

miatamania 03-27-2007 08:19 PM

what size is that...sound clips or ban is next.

left field 03-27-2007 08:43 PM

:bigtu:

miataspeed1point6 03-27-2007 08:45 PM

I think its 2.25" or 2.5". Its a stock SRT-4 system. I wanted 3", but I have no money. I will try to get a sound clip on sunday, I don't have any way to do it until then. It sounds almost exactly like an SRT-4.

Philip 03-27-2007 09:10 PM

those welds are uh... yeah.

cjernigan 03-27-2007 09:21 PM

Looks homegrown beginer style fluxcore to me. When on a $10 budget (cost of welds) i think it looks good.

miataspeed1point6 03-27-2007 09:26 PM

Made with a 140amp MIG welder, and since I've never welded before...at least it's held together!

A guy I work with had the welder but was too busy to do it for me, so I just did it myself. I also used a cutoff wheel and angle grinder, no ban saw or chop saw. I'll admit they look crappy, but it was the best I could do. It was really fun though, and I'm proud of it!

Snowsurfer03 03-27-2007 10:14 PM


Originally Posted by Philip (Post 96522)
those welds are uh... yeah.


philip- you crack my ass up sometimes. :gay:

atleast he did his best and its his first time, props to you brother!

expensivehobby22 03-28-2007 12:34 AM

Nice! Glad to see that exhaust went to good use :)

miataspeed1point6 03-28-2007 01:10 AM

Yep! I plan to make the downpipe out of the rest of it soon. I need to figure out a way to get it done fast because the hoists at work are always full.

Thanks for the exhaust man, I owe you huge! How is your exhaust coming along?

Mimime 03-28-2007 01:20 AM

Where is the muffler?

FHS 03-28-2007 01:27 AM

I was wondering the same thing. Man, it's like showing pictures of your kid. No matter how ugly everybody else thinks it is, it's going to be the most beautiful thing you've ever seen. As long as it works, who cares!! I definitely want to try my hand a welding someday. :bigtu:

TheBandit 03-28-2007 01:49 AM

Looks like you forgot the part that makes it not quite so audible... If it makes you happy, then you did a good job.
-Michael-

PaKMaN 03-28-2007 04:35 AM

SRT4's don't come with mufflers.

y8s 03-28-2007 09:53 AM


Originally Posted by Philip (Post 96522)
those welds are uh... yeah.

hey our balls are all wrinkly down there. but nobody sees em until it's too late anyway.

expensivehobby22 03-28-2007 10:32 AM

SRT-4s have a resonator and that's it.

My only suggestion is painting the welds with some sort of antirust coating.

My car is coming along, almost done. Should be runnable this weekend, or really close to it.

Philip 03-28-2007 10:36 AM


Originally Posted by Snowsurfer03 (Post 96541)
philip- you crack my ass up sometimes. :gay:

atleast he did his best and its his first time, props to you brother!

at least it held unlike that dude and his charge pipe :rofl:

Braineack 03-28-2007 10:44 AM

i still dont think anythign beats Loki's fluxcore manifold/DP/piping

miataspeed1point6 03-28-2007 04:49 PM

I have 2 resonanators, no muffler. I'll try to get a sound clip Sunday, it all depends if my Emanage wants to be nice to me. I have yet to hear it under boost, but under normal driving conditions it sounds nice.

Welding is easy, making good welds is hard. I'm going to practice some more. I'd like to weld up something usefull but that wont kill the car if it breaks.

blue89turbo 03-28-2007 10:44 PM


Originally Posted by PaKMaN (Post 96644)
SRT4's don't come with mufflers.

That's right, surprising that they can get away with that on a production car...

zoom2zoom 03-29-2007 01:06 AM

can you do a writeup about where the cuts are, etc?

miataspeed1point6 03-29-2007 02:53 AM

If you can get me a good picture of the stock SRT system I will do my best. I need both the front and rear sections in the picture.

y8s 03-29-2007 09:03 AM


Originally Posted by blue89turbo (Post 96910)
That's right, surprising that they can get away with that on a production car...

actually the SRT4 uses an upstream dynamic exhaust energy reduction device. it dissipates energy (and noise) in the exhaust by converting it to mechanical power.

rmcelwee 03-29-2007 09:18 AM


Originally Posted by miataspeed1point6 (Post 96528)
Made with a 140amp MIG welder, and since I've never welded before...at least it's held together!

I thought they looked great. I am a novice with a welder and I would have just burnt through that thin piping. Good job!

miataspeed1point6 03-30-2007 12:02 AM


Originally Posted by y8s (Post 97003)
actually the SRT4 uses an upstream dynamic exhaust energy reduction device. it dissipates energy (and noise) in the exhaust by converting it to mechanical power.

....Yeah, what he said.


rmcelwee thanks! I thought they were decent, but I don't have much to compare to. I don't see too many hand done welds ever, only machine. I practiced on some extra piping first, I burnt through it like crazy. The guy who owns the welder told me to make zig-zags while going along. I did that and I just found a good pace that didn't burn through. I would love to buy a welder and practice until I am good, it's so much fun.

y8s 03-30-2007 11:05 AM

the trick is to go hotter. I get the best results on exhaust piping (16-14Ga) by cranking up the heat. who doesn't love nice deep penetration?

jayc72 03-31-2007 12:25 AM


Originally Posted by y8s (Post 97357)
who doesn't love nice deep penetration?

Guys in prison.

Trent 03-31-2007 12:37 AM

^ ZING.

my miata has a very similar exhaust setup. I run one resonator and no muffler. It's not as loud as you might think (the turbo really DOES dissipate most of the noise), but it's still a bit loud for my tastes. I intend to weld on a muffler one day.

cjernigan 03-31-2007 03:10 AM


Originally Posted by supersaiyan93 (Post 97598)
^ ZING.

my miata has a very similar exhaust setup. I run one resonator and no muffler. It's not as loud as you might think (the turbo really DOES dissipate most of the noise), but it's still a bit loud for my tastes. I intend to weld on a muffler one day.

My roommates N/A 1.6 is louder with a cat and straight through resonator than my car is open downpipe. His is so loud we wear ear plugs on long road trips. I would drive my car open downpipe before his anyday.

Exhondaman 03-31-2007 04:33 AM


Originally Posted by Braineack (Post 96714)
i still dont think anythign beats Loki's fluxcore manifold/DP/piping

Ooooh, I would LOVE to see that.

akaryrye 03-31-2007 04:56 AM

I am another one with no muffler. I am running a 14" long 3" diameter louvered resonator and a Cat. Most of my buddies are surprised at how quiet it actually is. Its not quiet but not really loud.

y8s 03-31-2007 11:40 AM


Originally Posted by jayc72 (Post 97596)
Guys in prison.

haha maybe not ALL guys in prison?

:dancegay:

NotYourAverage 03-31-2007 08:56 PM

looks pretty decent

Mouglie 04-01-2007 12:25 AM

is it all pipe or is there a muffler somewhere in there?
*edit* just read through all the thread, lol...

pic of the resonator and louvers or BAN!!! hahaaa...

Arkmage 04-01-2007 03:27 PM

sound clip / youtube?

miataspeed1point6 04-02-2007 01:52 AM

I'm trying to get one. I don't have a video camera, but my girlfriend does. I just need to get to her house. I planned to get it tonight, but the Emanage doesn't want to be nice to me and let the car run. I'll get it as soon as I can.

miataspeed1point6 04-17-2007 10:30 PM

Well it isn't the best, but it was the only video I could make. At idle it sounds exactly like it does in real life. However while its revving in real life it is deeper. I'm pretty sure its just the cameras mic not being able to handle the volume. It's just a Cannon Powershot A540. Anyway, to the good part, my SRT-4 exhaust cut up and stuck under my Miata!

http://s6.photobucket.com/albums/y22...t=MVI_0777.flv

Trent 04-17-2007 10:37 PM

your car sounds IDENTICAL to mine.

turbopezz 04-17-2007 10:42 PM

1 Attachment(s)
sounds just like the srt4 duals i made.

VRTSid 04-17-2007 11:13 PM

sounds great.


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