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> Adding an O2 bung to the exhaust.., a couple of pictures...
Mueller
post Aug 18 2005, 08:43 PM
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Adding a WBO2 bung in the exhaust......European Racing Header for my /4 motor.

My fuel injection (Link) has the ability to gather and use the data from a wideband oxygen sensor, I can also use the LC-1 and laptop or LM-1 with the sensor (both from Innovate Motorsports)

Getting it ready:
(IMG:http://www.914world.com/bbs2/uploads/blog-1124418953.jpg)
I used a Uni-bit....expensive little suckers, but worth it...now I just need to figure out how to re-sharpen them (IMG:http://www.914world.com/bbs2/html/emoticons/smile.gif)
(IMG:http://www.914world.com/bbs2/uploads/blog-1124418961.jpg)
Used sparkplug to protect the threads as well as offering a "handle" to hold it while tack welding:
(IMG:http://www.914world.com/bbs2/uploads/blog-1124418986.jpg)
Ugly weld, looks better now that I've painted it black:(IMG:http://www.914world.com/bbs2/uploads/blog-1124419002.jpg)
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bd1308
post Aug 18 2005, 08:45 PM
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good work man!

looks like the bung on the jeep

(IMG:http://www.914world.com/bbs2/html/emoticons/smile.gif)

good work....
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Mark Henry
post Aug 18 2005, 08:47 PM
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I need TP for my bung hole!!!

(Best Bevis voice)




Looks good!
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john rogers
post Aug 18 2005, 09:08 PM
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Say Mueller, how come there is a spark plug in the bung??? he he he
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Maltese Falcon
post Aug 18 2005, 10:16 PM
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Dude, yer hired (IMG:http://www.914world.com/bbs2/html/emoticons/welder.gif) !

ps bringing trans on 8/27/05 (IMG:http://www.914world.com/bbs2/html/emoticons/driving.gif)
Marty
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914werke
post Aug 18 2005, 10:32 PM
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Mike did you buy the bung of the shelf or make it?
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RustyWa
post Aug 18 2005, 10:40 PM
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Hell, I'd take those welds!

Is there a spot on a stock banana muffler that you could install a bung? Just curious.
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Mueller
post Aug 18 2005, 11:39 PM
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QUOTE (Maltese Falcon @ Aug 18 2005, 09:16 PM)
Dude, yer hired (IMG:http://www.914world.com/bbs2/html/emoticons/welder.gif) !

ps bringing trans on 8/27/05 (IMG:http://www.914world.com/bbs2/html/emoticons/driving.gif)
Marty

cool...I've been looking for a new gig (IMG:http://www.914world.com/bbs2/html/emoticons/smile.gif)
sweet....I've added your arrival date to my calendar, we'll have to schedual a lunch or dinner that day for you if you have the time...I owe you a (IMG:http://www.914world.com/bbs2/html/emoticons/beerchug.gif)


the bung came with the O2 sensor, I think Mark D. mentioned you can find them for just a few bucks at NAPA and other autoparts places.

for the 2.0 (IMG:http://www.914world.com/bbs2/html/emoticons/mueba.gif) muffler, you'd either tap into one of the inlets or I guess you could tap into the muffler housing itself, not sure if the later is a good idea or not...anyone???
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914Rookie
post Aug 18 2005, 11:44 PM
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Mike,
Let me know if you need another weld bung. I probably made the one you have if you bought it off the shelf somewhere. I manufacture these for a lot of OEM exhaust guys. Holley, Flow Tech, Bassani, Bursch, Billy Boat, you name it. 18mm x 1.5, steel or stainless with or without a radius bottom. Let me know. Nicely done btw (IMG:http://www.914world.com/bbs2/html/emoticons/smilie_pokal.gif)

Greg
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Mueller
post Aug 18 2005, 11:51 PM
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QUOTE (914Rookie @ Aug 18 2005, 10:44 PM)
Mike,
Let me know if you need another weld bung. I probably made the one you have if you bought it off the shelf somewhere. I manufacture these for a lot of OEM exhaust guys. Holley, Flow Tech, Bassani, Bursch, Billy Boat, you name it. 18mm x 1.5, steel or stainless with or without a radius bottom. Let me know. Nicely done btw (IMG:http://www.914world.com/bbs2/html/emoticons/smilie_pokal.gif)

Greg

thanks....it would have been nice to have the bung with the radius'd bottom, what a PITA to get a nice fit (I was lazy and used my bench grinder)

This one came from Innovate Motorsport, each O2 kit comes with one luckly....
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McMark
post Aug 19 2005, 12:55 AM
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For those of you who want cheap bungs.... (IMG:http://www.914world.com/bbs2/html/emoticons/wink.gif)

NAPA part #EXH 36339. If I remember, I'll get a price tomorrow. IIRC, $1.50 each.


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scotty914
post Aug 19 2005, 01:02 AM
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i know why mike is putting a spark plug in his exhaust.. he can use the link to go real rich and spark the exhasut and have a 914 that throws flames (IMG:http://www.914world.com/bbs2/html/emoticons/blowtorch.gif)
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rhodyguy
post Aug 19 2005, 10:09 AM
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just one ?. why would you put the bung in the replaceable portion of the muffler? (IMG:http://www.914world.com/bbs2/html/emoticons/dry.gif) perhaps better suited in the header after all the merging is finished. i'll pull the exhaust i have and post the picture after awhile.

k
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914Rookie
post Aug 19 2005, 10:25 AM
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No offense McMark, but that's not a weld bung... it's an 18mm NUT ! (IMG:http://www.914world.com/bbs2/html/emoticons/blink.gif) Too short and probably a pain to weld across the flats. But they are cost effective if that's what you want.

Greg
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maf914
post Aug 19 2005, 11:19 AM
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QUOTE (rhodyguy @ Aug 19 2005, 08:09 AM)
why would you put the bung in the replaceable portion of the muffler? (IMG:http://www.914world.com/bbs2/html/emoticons/dry.gif) perhaps better suited in the header after all the merging is finished.

Now you bring it up! (IMG:http://www.914world.com/bbs2/html/emoticons/laugh.gif)

Nice looking job, Mike.
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rhodyguy
post Aug 19 2005, 11:37 AM
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i want a do over on my ?. after looking at my muffler, the collector is too close to the flange and piping for placement of the bung. eventually i hope to replace this muffler with an edelbrock unit i saw recently, the SDT model #55740 2.0"in/2.0" out, for those who might care. a whole lot cheacheaper than a flowmaster and i think better quality than the bursch replacement. i DO plan on adding another flange down stream to save the bung.

k


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McMark
post Aug 19 2005, 12:59 PM
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QUOTE (914Rookie @ Aug 19 2005, 08:25 AM)
No offense McMark, but that's not a weld bung... it's an 18mm NUT ! (IMG:http://www.914world.com/bbs2/html/emoticons/blink.gif) Too short and probably a pain to weld across the flats. But they are cost effective if that's what you want.

Greg

Ummmmm, yeah. (IMG:http://www.914world.com/bbs2/html/emoticons/rolleyes.gif)

I never claimed it was The Perfect Bung ™ , I just said it was a cheap alternative. It has the correct thread. It is possible to weld it into an exhaust pipe without any real difficulty.

Give me a break. (IMG:http://www.914world.com/bbs2/html/emoticons/dry.gif)
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Mark Henry
post Aug 19 2005, 01:06 PM
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QUOTE (McMark @ Aug 19 2005, 02:59 PM)
QUOTE (914Rookie @ Aug 19 2005, 08:25 AM)
No offense McMark, but that's not a weld bung... it's an 18mm NUT ! (IMG:http://www.914world.com/bbs2/html/emoticons/blink.gif) Too short and probably a pain to weld across the flats. But they are cost effective if that's what you want.

Greg

Ummmmm, yeah. (IMG:http://www.914world.com/bbs2/html/emoticons/rolleyes.gif)

I never claimed it was The Perfect Bung ™ , I just said it was a cheap alternative. It has the correct thread. It is possible to weld it into an exhaust pipe without any real difficulty.

Give me a break. (IMG:http://www.914world.com/bbs2/html/emoticons/dry.gif)

(IMG:http://www.914world.com/bbs2/html/emoticons/agree.gif)

Up here they want something like $20 for that bung (IMG:http://www.914world.com/bbs2/html/emoticons/mad.gif) (IMG:http://www.914world.com/bbs2/html/emoticons/pissoff.gif)

A $1.50 for a nut that does the same job sounds good to me!
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Mueller
post Aug 19 2005, 03:14 PM
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QUOTE (rhodyguy @ Aug 19 2005, 10:37 AM)
i DO plan on adding another flange down stream to save the bung.

k

$5.00 for a pair on eBay regular steel....

$6.50 for a pair of stainless steel ones......

even I am not that cheap...at that price who cares...the muffler is not going to just fall apart and need replacing next week (IMG:http://www.914world.com/bbs2/html/emoticons/smile.gif)

besides, when I put the turbo on, the O2 would be too close to the turbo if I welded the bung to the collector.....
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ChrisFoley
post Aug 19 2005, 04:12 PM
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I was recently doing some work on a used Upright Conversion Tangerine Header. The customer had added an O2 bung himself that he bought from Jeggs. When it went through the alkaline bath to remove the old H/T coating before being recoated the bung came out full of pinholes, and the threads were also eroded away. On closer inspection I noticed the mig weld had eaten away at the bung material too. Not all O2 bungs are created equal I guess. (IMG:http://www.914world.com/bbs2/html/emoticons/unsure.gif)

I had bought some bungs wholesale from Hooker but they wanted way too much $$. More recently I picked up some stainless ones from Vibrant which were much more reasonably priced.

I like to TIG bronze weld O2 bungs. Less distortion and oxidation that way. (IMG:http://www.914world.com/bbs2/html/emoticons/smile.gif)
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