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-   -   Opinions on DIY mani and how to make it stronger (https://www.miataturbo.net/diy-turbo-discussion-14/opinions-diy-mani-how-make-stronger-26848/)

thesnowboarder 10-07-2008 04:01 AM

Opinions on DIY mani and how to make it stronger
 
3 Attachment(s)
Snaged a new motor today and the previous owner gave me his DIY mani/dp and since the funds are kinda tight i was thinking of just using what i have. Savington brought up a good point about how the OEM header was not made to hold the weight of a turbo, and this DIY mani is clearly made out of parts of the OEM header.

Take a look:
Attachment 210683
Attachment 210684
Attachment 210685
http://i6.photobucket.com/albums/y23...r/IMG_0234.jpg

How might i make this thing last a while?

JasonC SBB 10-07-2008 04:07 AM

LOL that mani may look like it might flow better than a log mani.

Can you dig up pix of Begi's S4 manifold support?

thesnowboarder 10-07-2008 04:15 AM

something like this?
http://www.bellengineering.net/image...e/P3180845.JPG

Edit: that flange looks significantly thicker as well

UrbanSoot 10-07-2008 04:18 AM

dude... this manifold looks SICK!

you need to weld bracket that goes from turbo inlet flange to a "head" flange. any muffler shop will charge you around $40 to do so.



ps: edited.

SloS13 10-07-2008 09:22 AM

Quote:

Originally Posted by UrbanSoot (Post 316751)
dude... this manifold looks SICK!

you need to weld bracket that goes from turbo inlet flange to a "head" flange. any muffler shop will charge you around $40 to do so.

This man speaketh the truth.

Toddcod 10-07-2008 09:41 AM

Another case of "The work computer blues." No pictures available. I would brace it somehow. Mabe someone else has a picture of a braced manifold they can post.

Braineack 10-07-2008 09:55 AM

Quote:

Originally Posted by thesnowboarder (Post 316749)
something like this?
http://www.bellengineering.net/image...e/P3180845.JPG

Edit: that flange looks significantly thicker as well


no...The manifold is supported by seven inches of 3/4" Aluminum Rod. :naughty:

zoom2zoom 10-07-2008 03:06 PM

That is pretty sweet, brace it and use it. Any pics of the downpipe?

Fireindc 10-07-2008 03:13 PM

Turbo not hit block?

Manifold looks nice, id brace it for sure though.

Stein 10-07-2008 03:23 PM

Quote:

Originally Posted by Fireindc (Post 316883)
Turbo not hit block?

Forever to be one of my favorite turbo-related lines.:bowrofl:

m2cupcar 10-07-2008 03:41 PM

I think the brace needs to run from the turbo flange down to the block, or the motor mount. Both dvcn and I have SSAutochrome manifolds braces that way and they're surviving. I'm using some round mild steel rod. It does a nice job of supporting while having some give for expansion/contraction. I originally went with square tube, but it eventually tore. So I sectioning the square and welded up some solid rod in the center.
http://i158.photobucket.com/albums/t...31_braces1.jpg

johndoe 10-07-2008 04:07 PM

for a chopped up stock manifold that looks pretty sweet

zoomzoom 10-09-2008 05:06 AM

I just used a bit of 10mm steel rod from the turbo flange to the head flange. The manifold seems pretty similar in design apart from mine being steam pipe, whoever made it had made a pretty good effort I reckon.

http://img413.imageshack.us/img413/9...hermanizi1.jpghttp://img386.imageshack.us/img386/5...maniisocp6.jpg

ArtieParty 10-09-2008 09:35 AM

Ok, one question...... What is up with the OVERSIZED oil filter sticking out from the valve cover?

hustler 10-09-2008 07:37 PM

Quote:

Originally Posted by ArtieParty (Post 317576)
Ok, one question...... What is up with the OVERSIZED oil filter sticking out from the valve cover?

yeah, seriously.

ampz 10-09-2008 10:38 PM

Catchcan :giggle:

thesnowboarder 10-09-2008 10:44 PM

Came with the motor, its got an oil filter relocation kit on it, and the previous owner had that piece of crap attached to the end of it.

m2cupcar 10-09-2008 11:15 PM

1 Attachment(s)
You want the support going to the underside anchored somewhere else other than the head flange for maximum support.

blue turbo mx5 10-10-2008 01:45 AM

you could also use the factory nuts that are on the mani to bolt 2 upper braces

m2cupcar 10-10-2008 10:28 AM

3 Attachment(s)
Here's a bottom mount support courtesy of fredio. It's actually sandwiched between the turbo and mani flange.
Attachment 210620
Attachment 210621
Attachment 210622


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