EXHAUST BUNG WELD FITTING for o2 sensor

[RVR97]

Hi guys,

My turbo return oil line is hitting the o2 sensor and I'm looking to relocate the o2 sensor some where down the dump pipe. Pretty much need to plug up the old hole and weld a new bung. Any idea what size of thread, diameter of the bung used on the rvr HSG?

How about this one?

http://www.ebay.com.au/itm/EXHAUST-BUNG-WELD-FITTING-O2-OXYGEN-SENSOR-DYNO-TUNING-/160534531092?pt=AU_Motorcycle_Parts_Accessories&hash=item25609a8c14#ht_955wt_905

Wae

 

[dj_konix]

Yeah that should do, the o2 sensor is pretty universal. Is your dump pipe stock? cos o2 sensors are not easy to pull out..broken waaay too many
BTW Did you get your brakes fitted?

 

[Rockabilly]

Wae the 02 sensor in a std dump senses the gases very easy because of where it is (In the turbo's face)
When you relocate an 02 sensor further away, it becomes harder to sense the gases.
At an exhaust shop, they have shallow bung nuts & longer bung nuts.
A longer bung nut can cause the sensor to not sense enough & in my Daughter's car it threw a check light.
A shallower bung was put in & then the 02 sensor could read better & the check light went out.
* So what I'm saying is, if the 02 sensor can't read/sense the gases enough, the ecu will inject less fuel.
* The car will have more power with the leaner A/F, but without a wideband 02 to check it, it could be too lean!
At low revs, a faulty 02 or badly positioned 02, the car will survive.
But at WOT to Max revs, the A/F could be too low & cook your piss tins.
Packing out your 02 in the std dump to make it shallower won't change things because it is in the turbo's face.
That little 02 sensor is very critical. That's my 2c +gst worth of info.
Cheers !

 

[BMGTZ]

Wae the 02 sensor in a std dump senses the gases very easy because of where it is (In the turbo's face)
When you relocate an 02 sensor further away, it becomes harder to sense the gases.
At an exhaust shop, they have shallow bung nuts & longer bung nuts.
A longer bung nut can cause the sensor to not sense enough & in my Daughter's car it threw a check light.
A shallower bung was put in & then the 02 sensor could read better & the check light went out.
* So what I'm saying is, if the 02 sensor can't read/sense the gases enough, the ecu will inject less fuel.
* The car will have more power with the leaner A/F, but without a wideband 02 to check it, it could be too lean!
At low revs, a faulty 02 or badly positioned 02, the car will survive.
But at WOT to Max revs, the A/F could be too low & cook your piss tins.
Packing out your 02 in the std dump to make it shallower won't change things because it is in the turbo's face.
That little 02 sensor is very critical. That's my 2c +gst worth of info.
Cheers !

Doesnt the standard O2 sensor only work in closed lop? Cruising.. thus a wot run wouldn't draw data from the O2 sensor?

I have moved them downstream by 200mm into the first bend with any hassles ....yet.

 

[JayRome]

there are 2 sizes in screw in O2 sensor bungs a small (some nissans and EGT sensors) and a large (1-4 wire oxy, wide bands even some EGR) and a 2 bolt flange style bung (toyota mostly)

you cant really go wrong with ordering, its either big, small or 2 bolt... almost all cars now use the big one anyways...

your above link should be fine...

just keep the oxy as close to stock position as possible, putting it further away can cause our engines to fluctuate in RPM during idle or while rolling in neutral (thanks to narrow band sensors)

 

[RVR97]

Sorry I should have mention the o2 sensor is not on the stock dump anymore....

QIK-247 - AHhaha same over here I couldn't pull out my sensor. But in the end, I took my td05 with the dump attached to Jack's house and he undo the o2 for me. But now with the old turbo and dump removed, the new down pipe is going in and very unfortunate the bung hole is welded on where the o2 sensor will block the oil return line. I end up bashing/flatten a side of the oil return line, will check again whether it will be tight fit or need a new bung hole.

Comes to the brembo setup, I can't wait to bolt it on but I had some issue with the seller. Still missing the rotors. I got the brembos, and boost n brake master cynlinder, and tr frnt 25 spline hubs with knuckles. Anyway I've lgot oads of questions regards to the brembos setup on the rvr. We should make a thread just for the brembo conversion :lol: - oh yehh I do know that the rvr has 5x114.3 pcd, and why would I need the tr hubs when the rvr has 5x114.3 pcd?

Heres a pic of the brembo, not dark brown or burn but just top clear coat is peeling off......
http://compct.com.au/car/brembos.jpg

Down pipp with o2 bung....
http://compct.com.au/car/dumpo2.jpg

Rockabilly - I knew those info would come in handy , thank alot! Car will need a tune once the new turbo setup bolts in. I installed the ecmlink lite, I was hoping is there any1 can help out with the tuning in Perth that has experience with ecm.

Wae

 

[RVR97]

there are 2 sizes in screw in O2 sensor bungs a small (some nissans and EGT sensors) and a large (1-4 wire oxy, wide bands even some EGR) and a 2 bolt flange style bung (toyota mostly)

you cant really go wrong with ordering, its either big, small or 2 bolt... almost all cars now use the big one anyways...

your above link should be fine...

just keep the oxy as close to stock position as possible, putting it further away can cause our engines to fluctuate in RPM during idle or while rolling in neutral (thanks to narrow band sensors)

What do you think the bung located about 30cm away from the turbo flange?

http://compct.com.au/car/dumpo2.jpg

 

[JayRome]

closer the better, might as well put 2 in for a wide band.....

 

[dj_konix]

ah yes the ones off eBay

 

[RVR97]

ah yes the ones off eBay

Yeh the seller is very dodgy, I paid for an evo 9 MR bov and he sent me a evo 9 vent n insulator... I was like wtf! Any1 can distinguish by the size of the postal box for the vent compare to a bov, how can there be a mistake?? I might make a good use out of the vent for my rvr lol....