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-   -   Is the stud too short or the flange too thick? (https://www.miataturbo.net/diy-turbo-discussion-14/stud-too-short-flange-too-thick-23006/)

kenzo42 06-30-2008 10:54 PM

Is the stud too short or the flange too thick?
 
1 Attachment(s)
30mm stud.

Attachment 212566

neogenesis2004 06-30-2008 10:55 PM

flange is uber thick lol

Braineack 06-30-2008 11:05 PM

stud is small too...

Arkmage 07-01-2008 12:07 AM

you hurt my feelings Scott... my wife says it's just fine :(

Zabac 07-01-2008 09:40 AM

You can never have a flange that is too thick...stud is too short in this case.

kenzo42 07-01-2008 04:23 PM

1 Attachment(s)
So the flange is slightly less than 1" thick. I attached another pic from another perspective.

The inventory checklist shows DP studs as 30mm x 1.25 x 8 which is what I received and is pictured in the photo.

The flange isn't flat either. It rocks back and forth on a glass slab and turbine. Looks like it must not have been machined down.

So is 1" too thick?

Attachment 212560

Braineack 07-01-2008 04:26 PM

who's it from....in most cases, .5" flanges are used. if it's not flat, it will obvious need to be milled. belt-sander could be your friend.

neogenesis2004 07-01-2008 04:45 PM

Usually you start with .5" and then mill after the part is done for flatness. 1" thick is pretty outrageous. it really only needs to be like 3/8" in finished form.

Saml01 07-01-2008 04:48 PM

Thats the begi S pipe guys, if its not that thick the wastegate flapper doesnt have enough room to open.

When I got that pipe I had to go hunt for larger studs. I think I wound up using 45mm ones and The bolts dont even thread on completely.

Yea, I had quite an excursion with their pipes. First one hit the coolant line, hit the transmission and the lowerbolt wouldnt thread on because it was to close to the pipe. The second one worked.

neogenesis2004 07-01-2008 04:49 PM

Oh thats a BEGI part? In that case call them and tell them to send you the right F'in studs...

Saml01 07-01-2008 04:54 PM


Originally Posted by neogenesis2004 (Post 278046)
Oh thats a BEGI part? In that case call them and tell them to send you the right F'in studs...

They charge out the ass for that.

If he cant find studs he's better of using grade 10 bolts.

johndoe 07-01-2008 05:13 PM

why the F would they charge you if THEY sent you the wrong part?

Duckie_uk 07-01-2008 05:19 PM

I would :fawk:

Zabac 07-01-2008 06:40 PM

Just grind it down flat, who cares how thick it is, and go to local parts store and get some real bolts that will fit. End of story!

Arkmage 07-02-2008 01:17 AM

all thread = adjustable length studs...

Saml01 07-02-2008 10:52 AM


Originally Posted by johndoe (Post 278054)
why the F would they charge you if THEY sent you the wrong part?

No no.

The pipe is not the problem, thats the normal flange that comes with the Begi S. The pipe does not come with studs, the turbo you have comes with studs but they are too short for their enlarged flange. If you want longer studs to work with that pipe they charge for em.

Btw, the begi S pipes flange design is identical to the downpipe on a WRX. Found out by accident, was surprised.

jayc72 07-02-2008 11:27 AM

My BEGI downpipe had no hardware when I got it, it was supposed to. Stephanie sent it out after I informed them they were missing. I sourced my turbo elsewhere.

As far as I know they include hardware with the DP and the manifold.

Braineack 07-02-2008 11:58 AM

i didnt get hardware either...hell i wasnt expecting to. so i went to ace and picked it up, and didnt complain one bit.

jayc72 07-02-2008 12:18 PM

For the Divorced DP this is what BEGI says:

The two piece downpipe comes with turbine outlet mounting hardware, cross bolt, and O2 sensor bung plug.
and the BEGI S

The two piece downpipe comes with turbine outlet mounting hardware and cross bolt fastener.
So ya, if they say it should come with the hardware it should. And it should fit. The OP has a valid complaint.

Braineack 07-02-2008 12:21 PM


Originally Posted by jayc72 (Post 278323)
The OP has a valid complaint.


yes he does...and a plethora of easy fixes.


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