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DIY Turbo Discussion greddy on a 1.8? homebrew kit?

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Old 11-21-2006, 07:51 PM   #1
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Default Cheap Ebay Partial Kit (1.8L)

http://cgi.ebay.com/ebaymotors/1-8-M...53489169QQrdZ1

for those who might be interested.
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Old 11-21-2006, 08:02 PM   #2
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saw it, too bad the manifold is cracked and turbo needs rebuild. otherwise if someone wants to put a bit of work into it looks like you could get a nice headstart.
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Old 11-21-2006, 08:05 PM   #3
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there are a lot of us that are students and can get access to a welder to fix the manifold... the rebuild is the only tricky part, I understand ball bearing turbos are more difficult?!
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Old 11-21-2006, 08:15 PM   #4
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I believe Limit Engineering is the only company "rebuilding" BB turbos. They were at least.

Frank
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Old 11-21-2006, 09:16 PM   #5
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Hungry Hungry Hippos

Last edited by Kelly; 11-30-2006 at 02:38 AM.
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Old 11-21-2006, 09:20 PM   #6
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doesn't it just use typical ball bearings that aren't sealed? I would assume the rest of the internals are similar.

http://www.gnttype.org/techarea/turbo/BB.html
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Old 11-21-2006, 09:25 PM   #7
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I don't think that I'd attempt to weld a cast iron manifold and expect it to last any length of time.
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Old 11-21-2006, 09:27 PM   #8
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Ahhhh, I was following that...
Now that you spread it all over the forum, someone will take this, I know

I asked if he want to part it down and sell the downpipe alone... but he won't...

It's the bb turbo so difficult/expensive to rebuild?
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Old 11-21-2006, 09:38 PM   #9
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said to be. i dunno.
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Old 11-25-2006, 05:42 PM   #10
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the guy that sold me this pile of parts also has a complete miata link system for 1k
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Old 11-25-2006, 10:08 PM   #11
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i saw that... I'd be tempted if I didn't need obd2 to meet emissions in harris county. the MSnS seems like a more law friendly way for me.

[qoute="jayc72"]I don't think that I'd attempt to weld a cast iron manifold and expect it to last any length of time.[/qoute]
There are two ways to do it depending on the size, location, and cause of the crack. In most cases brazing it will be sufficient, but welding it with a TIG is not that difficult and I've had good success in patching cast parts on the TIG at school.
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Old 11-27-2006, 05:24 PM   #12
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I have no friends or life. Please hurry up and ban me.

Last edited by Braineack; 11-28-2006 at 12:39 AM.
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Old 11-29-2006, 09:29 PM   #13
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that's sold
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Old 11-30-2006, 08:37 PM   #14
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Cast iron can be welded quite sucessfully with the right procedures and tools. first locate clean and most importantly "V" notch the crack. Then heat the manifold to about 500f or till it has a slight redish hue. Now using nickle filler tig or stick weld the crack. keep the part hot and peen the part with either a slag hammer or a stippling gun (looks like a wad of nails) this will remove the stress risers introduced by welding. Slowly cool the part and you are ready to go.
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