The custom fabrication thread! (Post pics of stuff you have made) - Page 18 - Miata Turbo Forum -Boost cars, acquire cats.

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Fabulous Fabrication Post all your custom fabrication projects here; impress all your friends.

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Old 04-25-2013, 10:51 AM   #341
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I havent used their hanger material.... I go to a local metal supermarket and grab some nice stock and some stainless collars (pic below) for my hangers.

How much do you pay for those collars? Best I can find for stainless 3" ones is like 60/piece.
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Old 04-25-2013, 03:58 PM   #342
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why do you need a 3" one?

I use small ones... like 3/8" ON the exhaust hanger. they are what I use to prevent the straight rod used for a hanger from slipping off side to side.
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Old 04-25-2013, 04:02 PM   #343
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why do you need a 3" one?

I use small ones... like 3/8" ON the exhaust hanger. they are what I use to prevent the straight rod used for a hanger from slipping off side to side.
Oh I thought you were using them to clamp around the exhaust pipe and welding the hanger to the shaft collar rather than to the pipe.
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Old 04-25-2013, 04:04 PM   #344
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For the price of the craftsman, I would consider the 1hp 6x48 harbor freight with a stand.
6" x 48" Belt and 9" Disc Combination Sander
I have been eyeing this one up for a while. Just havent pulled the trigger.
SANDER 6IN X 9IN BELT DISC CRAFTEX - Busy Bee Tools


I need to rewire my shop right now... Im running off a pair of 15A 120v circuits since the move and my duty cycle is pretty low when welding LOL.
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Old 04-25-2013, 06:04 PM   #345
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That sander looks like the one I have, except for color. Mine is Craftsman, about 20 years old.
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Old 04-25-2013, 07:26 PM   #346
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20amp circuits. 15 isn't enough.
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Old 04-26-2013, 09:47 AM   #347
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I realize. The 15A circuits were there when I took posession. It was just to power 2 outlets and lights on one circuit and an outlet for a 120v pool pump on the rear on its own circuit.
I have a 125A sub installed in the garage now. I just need to buy ~80 feet of 3/3 TEK90 to run from the main panel to my sub and then go on the garage. I have just been too busy to do it yet.



Here are some pictures of an axle back exhaust I am working on as a part of a full turboback exhaust for a turbo Civic.




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Old 04-26-2013, 09:54 AM   #348
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The exhaust clearance and the mostly tacked together exhaust.

The exhaust is On the car in all pics shown except where the exhaust is obviously not on the car.

Clearance? Check!










I know how unimpressive it looks, but the BIGGEST challenge is a well fitting exhaust that DOESNT have heaps of bends, bends are almost like, cheating haha. Look at something like the FM exhaust which uses a side entry end exit muffler (lol, flow?) and lots of bends because not being custom made they cannot guarantee it will fit the car without a lot of big bends around all the parts.


V Bands, double braced hangers etc etc etc.

The works.


Note, nothing there is a final weld everything is just tacked including hangers.

Dann
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Old 04-26-2013, 10:05 AM   #349
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FWIW i have 240v @ 60a with a sub box in my garage and i feel it's still not enough. haha

Dann, what's up with that undertray? Why is it all beat to ****, it looks comepletely useless.
Whats the problem with side entry and exit exhaust, other than having more bends, cutting down on flow a litte, but at least it fits nice...
What's your process for measuring bends? Sure the "line it up, eyeball it, mark, and cut" method can sometiems work. But having very few bends and making very straight exhaust is tricky without being able to measure a bed accurately, it throws the rest of the exhaust off further down the line.
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Old 04-26-2013, 10:23 AM   #350
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Where do you guys get your pipe mandrel bends? Those are too satin to be vibrant.
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Old 04-26-2013, 10:44 AM   #351
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No idea about the undertray, Looks totally original and unbent to me??

Eyeball everything. When i started i was going to get all the tools but instead forced my self to eyeball everything, these days it is easy enough.

Tim I get them from a local supplier in Australia. They come from Midway metals however first.

Yes they are machine finished not mirror polished like the muffler often are.

Who cares they all look like **** after 20mins on the circuit

Dann
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Old 04-26-2013, 10:45 AM   #352
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I get mine from a local supplier. Quite a bit cheaper than vibrant, but there are no legs on the elbows.

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Old 04-26-2013, 10:49 AM   #353
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I get mine from columbia mandrel. The only thing I dont like is that they leave the wax lubricant inside the pipes. It makes some really thick smoke and terrible smells if you try to just weld it without getting all the wax out.
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Old 04-26-2013, 10:52 AM   #354
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Mine come in plastic with 6 or 8" legs, Covered in what looks like motor oil.

very glad they have legs.

Dann
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Old 04-26-2013, 10:59 AM   #355
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I pay the extra $2 for my bends and get the ones that are fully prepped. the picture above is how they look inside and out, straight out of the box.
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Old 04-26-2013, 11:21 AM   #356
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Yeah that's what I was looking for. I think those are called steam pipes, or something like that. Abe told me that's what he used...and that's what his vband clamps are. i can get the clamps from mcmcaster, the clamshell style with thumb nuts, for much cheaper than the fancy vibrant male/female/trickass clamp. But Mcmaster's price on the bends isn't cheap.
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Old 04-26-2013, 11:31 AM   #357
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Cleaning the wax from inside the jbend is one thing I suggested vibrant do, and now they do. Well, there's still a slight film in there but it washes off easily with warm water.

"sanitary stainless steel butt weld tube fitting". Found them on mcmaster. I use mcmaster because they are local to me, so no shipping.

McMaster-Carr

4.5" CLR, compared to vibrants 5" CLR. Price wise, I can get a vibrant Jbend (180 & 45, plus some straights) from my dad's speedshop for the price of 3 unpolished 90deg sanitary tube 'fittings'. This is good as my dad's shop is closing soon.

But I often use ATP's tight radius 3" 120, which is a 3" CLR and some straight legs, for $36 retail + shipping. These help.

SS (304 Stainless) 3.00" 120 Degree Mandrel Bent Elbow : atpturbo.com
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Old 04-26-2013, 12:58 PM   #358
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sanitary fittings will be polished. they have to be polished to be sanitary grade LOL.

That being said, do you mind posting or PMing what you found on the 90 degree fittings like i posted?

M
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Old 04-26-2013, 01:14 PM   #359
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Quote:
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sanitary fittings will be polished. they have to be polished to be sanitary grade LOL.

That being said, do you mind posting or PMing what you found on the 90 degree fittings like i posted?

M
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Found them on mcmaster.

McMaster-Carr

4.5" CLR, compared to vibrants 5" CLR.
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Old 04-26-2013, 02:01 PM   #360
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HOLY F*** those are expensive.
$56 each?

I can tell you that you can find a better supplier. My cost on elbows can buy me a box of 5 for the price of 2 of those ones.

I want to find a different supplier that can get me the polished elbows and pipe (locally) with thinner wall. 0.065" wall stainless pipe is heavy stuff.
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