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-   -   I will now join the ranks of idiots who do not safety wire (https://www.miataturbo.net/insert-bs-here-4/i-will-now-join-ranks-idiots-who-do-not-safety-wire-40085/)

hustler 10-12-2009 04:13 PM

I don't know that I can drill a hole big enough for .032 in the little 10mm head.

edit: Just called and switched to the .032. Thanks for the advice.


so safety wire experts, do you recommend lacing these or the standard twist? I think twisting pairs, on different flanges is the way to go because I creates fail safes on each flange which holds the chra to the housing.

I'm also going to do my fluid drain plugs too. This will help me sleep at night.

y8s 10-12-2009 04:17 PM

unfortunately mcmaster.com only sells down to 1/4-20 in stainless with drilled heads.

can you find your bolts with tall heads or use cap screws with longer heads?

hustler 10-12-2009 04:23 PM

Oil restrictor discussion:
I had BEGi make a .060, should I go smaller? I am worried that .040 is going to be too little oil for the turbo.

hustler 10-12-2009 04:23 PM


Originally Posted by y8s (Post 467004)
unfortunately mcmaster.com only sells down to 1/4-20 in stainless with drilled heads.

can you find your bolts with tall heads or use cap screws with longer heads?

there is so little clearance that I'm going to run the funky metal bolts tial sends.

hustler 10-12-2009 04:25 PM

http://i33.tinypic.com/1hp6qa.jpg
I wonder what made the top side of the diaphram dirty? It was clean on the inside. I wonder if its sucking in oil vapor from my atmospheric cam vent?

ARTech 10-12-2009 04:57 PM

.060? Is that even a restrictor? lol

I would have recommended .040", but if you're not blowing oil past the seals dont worry about it. If it ain't broke, don't fix it.

WTF is cam vent?

hustler 10-12-2009 04:58 PM

valve cover/cam cover, same thing...lol.

Miatamaniac92 10-12-2009 05:01 PM


Originally Posted by hustler (Post 467001)
I don't know that I can drill a hole big enough for .032 in the little 10mm head.

edit: Just called and switched to the .032. Thanks for the advice.


so safety wire experts, do you recommend lacing these or the standard twist? I think twisting pairs, on different flanges is the way to go because I creates fail safes on each flange which holds the chra to the housing.

I'm also going to do my fluid drain plugs too. This will help me sleep at night.

If by lacing, are you talking about how they cross the wire inside the bolt head like on figure 1-5? The only times I've seen it laced (ala 1-5) is when the middle section is open and even then I think it's only called for b/c you can do it like that with the middle section open.

Translation: it's probably overkill to lace it and it's a pain in the ass the get it just right.

A nice picture with diagrams of you are gonna safety wire would help for critiquing.

Chris

hustler 10-12-2009 05:28 PM

should I do this:
http://www.oldbritts.com/image/52_130202b.jpg
or tie them in two's like this:
http://speracing.com/images/Safety_Wire2.jpg

Cspence 10-12-2009 05:39 PM


Originally Posted by hustler (Post 467024)

My vote...

Miatamaniac92 10-12-2009 05:48 PM

#2.

Chris

greenday3437 10-12-2009 10:22 PM

In aircraft maintenance we do it with the twists like the lower picture, definately seems like the stronger way.

TurboTim 10-12-2009 10:34 PM

OK so you got a jig to do it yourself...great. Do you still want another set? Are you going to do Nicks too?

I was going to mention that uglyass oil drain block but I figured it works so leave it alone, but if it hurts clearance...it's ugly.

And holy shitznit that EWG is getting hot! It shouldn't be that orange (this was anodized black initially people).

I roll with this .035" ATP restrictor.
-4 size Oil inlet fitting for GT28/30/35R with built-in restrictor : atpturbo.com

http://www.atpturbo.com/mm5/graphics...nlet035-01.jpg

Rennkafer 10-12-2009 10:34 PM


Originally Posted by greenday3437 (Post 467077)
In aircraft maintenance we do it with the twists like the lower picture, definately seems like the stronger way.

We do it like that building race cars too. I'd also mention that you can do the entire series not just two at a time using the #2 method.

See here for more diagrams... they only show up to three bolts but you can do as many as you want in a string, just be careful to always have the bolt being pulled in the tighten direction.

Safety wire, proper safety wire technique for using safety wire on ultralights, and ultralight aircraft.

hustler 10-12-2009 11:36 PM


Originally Posted by TurboTim (Post 467081)
And holy shitznit that EWG is getting hot! It shouldn't be that orange (this was anodized black initially people).

I roll with this .035" ATP restrictor.
-4 size Oil inlet fitting for GT28/30/35R with built-in restrictor : atpturbo.com

http://www.atpturbo.com/mm5/graphics...nlet035-01.jpg

So wtf do i do about the wastegate? Is this bad? lol, seriously, what should I do?
http://i35.tinypic.com/pm2pg.jpg
Its even lighter now, lol. The blow off and WG were the same color at one time, lol.

The oil restrictor is drama because BEGi does not use AN thread pitch, its something else. Are you sure that .035 is not too small for tracking?

TurboTim 10-13-2009 10:01 AM

I don't know what you should do about it. Lower your EGT's? Go with an LS1? See if it breaks?

hustler 10-13-2009 10:39 AM

apparently this is normal, lol.

neogenesis2004 10-13-2009 10:44 AM

You want that restrictor, over oiling a bb turbo will kill it. It has much tighter clearances, and does not use oil flow to cool the center section as much as the water does. This is somewhat in converse to a journal turbo where it needs higher flow to maintain an oil film and oil is used to cool everything.

ZX-Tex 10-13-2009 11:05 AM


Originally Posted by neogenesis2004 (Post 467222)
You want that restrictor, over oiling a bb turbo will kill it. It has much tighter clearances, and does not use oil flow to cool the center section as much as the water does. This is somewhat in converse to a journal turbo where it needs higher flow to maintain an oil film and oil is used to cool everything.

Are you sure? I talked this over with both BEGI and ATP Turbo and they both think a restrictor was not needed on my GT2871 (ball bearing).

neogenesis2004 10-13-2009 11:17 AM

It's your turbo, do what you want. I don't type shit just to exercise my fingers.


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