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Old 04-04-2009, 10:01 PM   #1
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Default DIY Exhaust manifold "spanish style"

And here we go..

The good artist copies but the genius steals. Unfortunately I have no one near to steal his manifold so i decided to make my own.

Preparing a flange for a manifold:

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I haven't pics of how I do the exhaust ports on the flange, because plasma cut and digital camera are uncompatible.

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T3 flange:

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Ancient geometers were dreaming of squaring the circle. A couple of tons can do it.

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almost finished:

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and... done:

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Bonus, how to make your own downpipe 3D design: attach the original exhaust manifold to a flat surface, make some marks, weld a flat piece of metal at the end of the exhaust manifold. Place the new manifold w/turbo in the marks. Start your downpipe building:

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I hope you like it
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Old 04-04-2009, 10:05 PM   #2
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and you call yourself a NOOB.

i like it! good luck.
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Old 04-04-2009, 10:11 PM   #3
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Coņo Ismael!

Good work.
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Old 04-04-2009, 10:31 PM   #4
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That's awesome! You're not that much of a newb. A lot of here don't have fab skillz at all (myself included).
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Old 04-04-2009, 10:33 PM   #5
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Nice stuff man, I wish I could make my own stuff.
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Old 04-04-2009, 10:35 PM   #6
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Looks great, hadn't seen someone make their own flange before, good work! Are your ports really that square?
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Old 04-04-2009, 10:47 PM   #7
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Quote:
Originally Posted by kotomile View Post
Looks great, hadn't seen someone make their own flange before, good work! Are your ports really that square?
Nop, the ports are not that square, but making them more square makes easier to weld on the inner side.
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Old 04-05-2009, 12:36 AM   #8
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That manifold design is time tested to flow enough and the welds look good too.
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Old 04-05-2009, 04:56 AM   #9
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Wow, that looks great!! I plan to pick up a welder soon to start learning.
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Old 04-05-2009, 07:37 AM   #10
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Looks good! The machine shop we use for the FSAE car has everything id need to make stuff like that... too bad I dont have anything like that at home =(. I love making things with a lathe and milling machines lol.
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Old 04-05-2009, 08:05 AM   #11
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Nice job. It must be nice to have access to tools and machines like that. If I had a machine shop like that I could conquer the world.
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Old 04-05-2009, 09:01 AM   #12
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there is a big FAIL in the pictures and nobody noticed yet?
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Old 04-05-2009, 09:02 AM   #13
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BTW is fixed in the last picture.
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Old 04-05-2009, 09:28 AM   #14
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Great work there...nothing like having the right tools/machines for the job....I love working in a manufacturing plant, lol.
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Old 04-05-2009, 02:59 PM   #15
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Quote:
Originally Posted by ismael_pt View Post
there is a big FAIL in the pictures and nobody noticed yet?
Quote:
Originally Posted by ismael_pt View Post
BTW is fixed in the last picture.
The mani was upside-down on the flange?
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Old 04-05-2009, 09:22 PM   #16
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Quote:
Originally Posted by kotomile View Post
The mani was upside-down on the flange?
Yes
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Old 04-05-2009, 10:21 PM   #17
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I assumed it was deliberate to "show off" the turbo if not make it easier to run the piping.

There are some little nit-picky things that arent perfect, but it looks like a solid piece that is much better off than a eBay junk, plus the satisfaction of building it yourself. How much did you spend on it all? Nice job
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Old 04-05-2009, 10:50 PM   #18
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Tio, que buen trabajo!
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Old 04-06-2009, 03:11 PM   #19
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Quote:
Originally Posted by Orion ZyGarian View Post
I assumed it was deliberate to "show off" the turbo if not make it easier to run the piping.

There are some little nit-picky things that arent perfect, but it looks like a solid piece that is much better off than a eBay junk, plus the satisfaction of building it yourself. How much did you spend on it all? Nice job
30-40$, I can't remember exactly.

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Tio, que buen trabajo!
Gracias Tony y puxa asturies!!
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Old 04-06-2009, 04:58 PM   #20
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+1 for DIY. Props for a fellow fabricator.
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