wideband bung on ceramic dp

[san supra]

i have a ceramic coated coolez ct26 turbo back downpipe

best place to weld the wideband bung and any type of bung i should get? (i dont have a wideband and i dont know what i should buy)

any problems welding around ceramic coating with a mig?

should i weld it myself or is this a pro job? (i can weld, just not pretty)

the downpipe is off the car

thank you for any help

 

[TomFraser]

I would weld it further down the exhaust so you don't have to worry about it.

Most widebands are meant for further down the exhaust anyways.

 

[figgie]

In reality, it depends mostly on the electronics more so than the max operating temprature of the wide band sensor.

As a example,

LSU 4.2
Exhaust gas temperature range (operating) 930 °C
Exhaust gas temperature range (max.) < 1,030 °C
Hexagon temperature < 570 °C

To put it nicely, if the wideband sensor itself is seeing 930 celsius (folks that is 1706 degree Farenheit). The last thing you should be worrying about is the wideband!.

The real kicker is the Hexagon temp which is not as high as the sensor itself.

For that you need a heatsink,

http://www.innovatemotorsports.com/xcart/product.php?productid=16148&cat=250&page=1

Also a custom copper heatsink works best.

 

[san supra]

this is what i was thinking of using, is it a common size for wideband?

http://store.driftmotion.com/static/i-widebandoxygensensorbungstainless.php


i have seen some people that have it welded on the elbow ad others 2 feet down the pipe.
i would like to know a position that is not going to interfere once i put it in the car.

thanks for the replys

 

[RazoE]

I'd like to know this myself, as my DDP has a bung right next to the 02 sensor blocked off..

 

[san supra]

is the driftmotion bung for a certain type of wideband?

 

[san supra]

In reality, it depends mostly on the electronics more so than the max operating temprature of the wide band sensor.

As a example,

LSU 4.2
Exhaust gas temperature range (operating) 930 °C
Exhaust gas temperature range (max.) < 1,030 °C
Hexagon temperature < 570 °C

To put it nicely, if the wideband sensor itself is seeing 930 celsius (folks that is 1706 degree Farenheit). The last thing you should be worrying about is the wideband!.

The real kicker is the Hexagon temp which is not as high as the sensor itself.

For that you need a heatsink,

http://www.innovatemotorsports.com/xcart/product.php?productid=16148&cat=250&page=1

Also a custom copper heatsink works best.

well my motor is not going to reach melting temps so do i still need the bung extender?

will the extender make my wideband to cold and cause it to read wrong?

i thought i could just weld in a bung and then screw in a wideband later and that was it!

ANY PICTURES OF WIDEBAND INSTALLED?

 

[WhtMa71]

The driftmotion bung is just like any other screw in O2 bung so it should work for narrow or wideband o2's. The most common length I've heard is 18" minimum away from the turbo.

You're going to have to grind the ceramic coating away from the hole to weld the bung on. I would drill your hole, put tape around how far you want to grind the ceramic away and do that (a wire brush on a drill or angle grinder with sandpaper should work fine) then remove the tape and weld the bung on.

 

[san supra]

thanks for the reply's

 

[san supra]

My dp is off the car and i didnt mark the best place to weld the bung. I know 2ft down but at what angle?

pictures of some widebands installed would help a bunch. I dont want it to hit anything when i install the sensor.

thanks

 

[WhtMa71]

Put it back up on the car temporarily and mark a place where it wont interfere with anything.

 

[san supra]

thanks for the reply but i forgot to mention the motor it out too. haha

 

[WhtMa71]

Oh haha..Well you might just have to wait until the motor is back in. I wouldn't chance just trying to eyeball the fitment. More than likely you'll install it and it'll interfere with something.

 

[san supra]

1 problem. My dp is turbo (ct26) back and i cant get to the inner bottom nut when the motor is in.

there has to be someone here that can tell me a measurement like 18in down and 3/4in off the center line to the inside of the car or something.

 

[san supra]

anybody with some info?

 

[Supraflymk3]

You should just wait until its back in the car, will be alot easier for marking a safe spot and theres no way that you're not able to get the downpipe off with the engine in the car. Downpipes are bolt on parts they shouldn't require you to pull your whole engine just to put it on. Either your lacking tools or your not using them to your advantage. As for buying a bung to weld on why don't you just order a wideband kit like the innovate lc1 very good wideband and very inexpensive. Most wideband kits will come with a bung that way you won't have wasted your money on one before you even buy a wideband. Just my two cents, take it or leave it.

 

[san supra]

thank you for your reply
i just dont have the money right now (in between jobs) but the bung will not be wasted because i plan on welding the extra one on my truck.
the dp doesnt require you to pull your engine but its easier to drop it in with the motor, there has to be a general area that a wideband would fit.

 

[S.A. supra]

I say put the engine back in and Mark it. then drop the down pipe out the bottom, and weld it on.

I can take a pic of my setup. It's a little different.

 

[tekdeus]

In reality, it depends mostly on the electronics more so than the max operating temprature of the wide band sensor.

As a example,

LSU 4.2
Exhaust gas temperature range (operating) 930 °C
Exhaust gas temperature range (max.) < 1,030 °C
Hexagon temperature < 570 °C

To put it nicely, if the wideband sensor itself is seeing 930 celsius (folks that is 1706 degree Farenheit). The last thing you should be worrying about is the wideband!.

The real kicker is the Hexagon temp which is not as high as the sensor itself.

For that you need a heatsink,

http://www.innovatemotorsports.com/xcart/product.php?productid=16148&cat=250&page=1

Also a custom copper heatsink works best.

I run one of these heatsinks, and it's working great. My first bosch O2 got cooked and the new one is fine with the heatsink.

 

[san supra]

thanks for the info!

can i see your set up?