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-   DIY Turbo Discussion (https://www.miataturbo.net/diy-turbo-discussion-14/)
-   -   Fabricating an EGR fitting on a 99 turbo manifold (https://www.miataturbo.net/diy-turbo-discussion-14/fabricating-egr-fitting-99-turbo-manifold-22717/)

fluke 06-26-2008 04:14 PM


Originally Posted by musanovic (Post 275644)
my egr pipe has been disconnected for about 1 yr now and no engine code yet. why not just leave it there without connecting it?

Well, if I didn't have to go for emissions testing I would remove the EGR system alltogether since I'll be using megasquirt.

Since I have to use the stock ECU for E-testing, w/out the egr line hooked up, the EGR valve takes in fresh air (instead of exhaust gas) and makes the engine run lean.....I think.

I tried out the '99 EGR line, cut it up and fabed up the piece to connect to the manifold; looks like shit, hits the dip stick and I'm not putting that by my pretty downtube. I'm going for the '01 EGR tube and the fitting from BEGi.

Arkmage 06-26-2008 07:26 PM

I used an NB manifold on my NA so I know what you're going through. I cut up my stock '97 EGR tube and a stock '99 EGR tube and basically used the bend from each to custom fab a tube that fit.

In your situation I'd weld the bung on the manifold as close as you can to the flange and do the same. Hack up 2-3 tubes to make one that works for your application. The tube is surprisingly thick so it's easy to weld.

fluke 06-29-2008 03:27 PM

2 Attachment(s)
Ok, just to finish off this thread for future DIYers:

I ended up using the '99 bung and ferrule from BEGi. By the way, Stephanie and Corky couldn't have been more helpful.

I extended the EGR tube ~ 1.5" and built up the manifold as I showed in the mechanical drawing on the first page.

Thanks for everyone's help!

cjernigan 06-29-2008 11:08 PM

Looks good, nice to have a tig torch in house to complete projects like this.

Stein 06-30-2008 08:59 AM

Good job. That's probably what I will do as well. That way I don't have to sweat the location of the bung.

fluke 06-30-2008 10:59 AM


Originally Posted by cjernigan (Post 277261)
Looks good, nice to have a tig torch in house to complete projects like this.

Thanks, I'd be lost w/out my TIG.

One last note, I didn't cut a 1-1/4" hole in the runner, I welded the angular piece directly to the runner and filled in w/ a stick welder, then drilled the hole thru.


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