DIY Turbo Discussion greddy on a 1.8? homebrew kit?

Need help identifying downpipe flange

Old 11-15-2016, 06:25 PM
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Default Need help identifying downpipe flange

As the title suggests; I bought a custom made 2.5" straight pipe exhaust system with a flex pipe connecting to a downpipe. The PO said that the flange in the photo (downpipe) was connected to an elbow that led to the turbo.

My turbo came off a 240, and has an elbow that I won't be able to use as the flange is different. I'll have to get something custom made when the system goes on the car in a few weeks, but I could use some help identifying the downpipe flange. I'll probably end up cutting up the elbow I have and creating a Frankenstein-pipe.
Attached Thumbnails Need help identifying downpipe flange-downpipe_flange_1.jpg   Need help identifying downpipe flange-downpipe_flange_2.jpg  
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Old 11-15-2016, 06:33 PM
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If it helps, here is a photo of where the downpipe WOULD connect to the elbow if they matched

up (as well as the turbo-to-elbow, in case anyone has suggestions as to how to make the new elbow)
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Old 11-15-2016, 06:35 PM
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Flyin miata


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Old 11-15-2016, 06:37 PM
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Originally Posted by mmmjesse
Flyin miata



Wow, great news! Hopefully they sell an elbow for the T25/28. Thanks a lot
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Old 11-16-2016, 01:14 AM
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they do sell just the elbow, its pricey.
https://www.flyinmiata.com/turbine-o...r-section.html
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Old 11-16-2016, 09:25 AM
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you need the elbow AND the manifold.
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Old 11-16-2016, 09:50 AM
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Originally Posted by borka
they do sell just the elbow, its pricey.
https://www.flyinmiata.com/turbine-o...r-section.html

Yup, f'n ridiculous for a tiny piece.
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Old 11-16-2016, 09:50 AM
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Originally Posted by mmmjesse
you need the elbow AND the manifold.

Already have a BEGI manifold
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Old 11-16-2016, 09:59 AM
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Originally Posted by fpscolin
Already have a BEGI manifold
Begi manifold will place the turbo differently and wont allow the downpipe to line up. If you want it to bolt right up, then you will need the FM manifold and turbo elbow.
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Old 11-16-2016, 10:14 AM
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Originally Posted by mmmjesse
Begi manifold will place the turbo differently and wont allow the downpipe to line up. If you want it to bolt right up, then you will need the FM manifold and turbo elbow.
Yeah, no way I'm spending $3XX CAD for an elbow. Going to go the custom fab route, I have a friend who has lots of exhaust hacking experience so we'll figure something out. Thanks for the advice
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Old 11-16-2016, 10:19 AM
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you already have turbo and begi manifold, so you can buy just the downpipe from begi and be set.
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Old 11-16-2016, 10:22 AM
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I am not sure how this would fit, but it looks to be what you are looking for
orientation seems somewhat correct.

New Stainless Steel 1994-2005 Mazda Miata T25/T28 Turbo Outlet Elbow 2.5 inch | eBay

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Old 11-16-2016, 11:42 AM
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Originally Posted by fpscolin
Yup, f'n ridiculous for a tiny piece.
It is a cast piece of metal. It is far above in quality what an exhaust shop will hack together. So of course it is expensive.

Originally Posted by mmmjesse
Begi manifold will place the turbo differently and wont allow the downpipe to line up. If you want it to bolt right up, then you will need the FM manifold and turbo elbow.
If he has the old style Begi log then the turbo is in exactly the same place.

Originally Posted by borka
I am not sure how this would fit, but it looks to be what you are looking for
orientation seems somewhat correct.

New Stainless Steel 1994-2005 Mazda Miata T25/T28 Turbo Outlet Elbow 2.5 inch eBay
It will not work. Look and the angle of the flange on the ebay piece compared to the FM piece.
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