Wideband location, too close to oil line?

[horizontalkev]

Just installed my wideband sensor, I marked where I wanted my sensor and after welding in my bung and installing downpipe I realize its going to be a snug fit.. Is this going to cause me problems? The sensor is touching the oil line.

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[GRAVEDIGGER]

That's pretty close, but I don't think it will cause any problems. As long as it's not rubbing the line it should be fine. If they were directly rubbing on each other I guess you may have a chance of wearing a hole in the oil return line from vibrations. Other than that I don't think it will be any more than a tight fit.

edit: I see you say it IS touching the line... I don't know if I like that.

 

[FIBA M - EC17PSE]

if in doubt buy a 45 degree spacer and use that, it will still do the same job but at least you dont worry when driving if its going to rub on it

 

[GRAVEDIGGER]

if in doubt buy a 45 degree spacer and use that, it will still do the same job but at least you dont worry when driving if its going to rub on it

Yeah, but don't those place the sensor out of the direct flow of exhaust gas? It's something you do when putting a high flow cat on a car that wasn't designed for one. It helps to slow the flow of air past the post cat sensor so that it doesn't throw a code with a high flow cat. I don't think you would want your wideband out of the main flow of exhaust gas.

 

[96ETT]

Also there is a recommended angle to keep the sensor mounted at in reference to the horizon. It has to do with condensation build up. I believe it needs to be at least 20 deg or so. Can't tell from the pics of yours fits that or not.

 

[talonalex92]

I would plug that up and re position it. Not sure what wideband you have, but aem recommends about 30 inches from the turbo for the most accurate reading. The sensor angle is important as well.

 

[horizontalkev]

I have a LC1. Its really the only spot I could get it to fit while being above 3 o'clock. I wanted it before the flex section because I don't trust the flex section to be leak free. I'd say its located about 2 to 2:30 o'clock

 

[FIBA M - EC17PSE]

Yeah, but don't those place the sensor out of the direct flow of exhaust gas? It's something you do when putting a high flow cat on a car that wasn't designed for one. It helps to slow the flow of air past the post cat sensor so that it doesn't throw a code with a high flow cat. I don't think you would want your wideband out of the main flow of exhaust gas.

Not really as innovate sell a heat reducing extending bung, it really does not effect the sensors readings, and them 45-90 angles dont effect readings aswell as we saw the same readings on my friends car, if it does change its so small you dont see the effects

 

[horizontalkev]

Not really as innovate sell a heat reducing extending bung, it really does not effect the sensors readings, and them 45-90 angles dont effect readings aswell as we saw the same readings on my friends car, if it does change its so small you dont see the effects

I might look into those then does innovate sell them?

 

[GRAVEDIGGER]

Not really as innovate sell a heat reducing extending bung, it really does not effect the sensors readings, and them 45-90 angles dont effect readings aswell as we saw the same readings on my friends car, if it does change its so small you dont see the effects

Okay, cool! Good to know that.

 

[T is for TURBO]

Also there is a recommended angle to keep the sensor mounted at in reference to the horizon. It has to do with condensation build up. I believe it needs to be at least 20 deg or so. Can't tell from the pics of yours fits that or not.

The recommended angle is for when the sensor is in and exhaust piping that is run parallel to the ground. His in the vertical section of the downpipe, so there is no concern of condensation build up.

I would plug that up and re position it. Not sure what wideband you have, but aem recommends about 30 inches from the turbo for the most accurate reading. The sensor angle is important as well.

You are correct, however a lot of people have been running them pre-flex section for years with no ill-effects. The advantage of running it that close is you have less chance of an exhaust leak throwing off your reading, and you have a faster response time.

OP, if its touching, move it. I would kick myself in the balls if my wideband wore a whole in my return line and killed my motor. Especially if I knew it they touching.

 

[FIBA M - EC17PSE]

I might look into those then does innovate sell them?

they sell the extended heat bung but not a 45 or 90 though Innovate Motor Sports On-Line Store

or there is this they sell but its mainly for bikes and atv's Innovate Motor Sports On-Line Store

 

[horizontalkev]

The recommended angle is for when the sensor is in and exhaust piping that is run parallel to the ground. His in the vertical section of the downpipe, so there is no concern of condensation build up.



You are correct, however a lot of people have been running them pre-flex section for years with no ill-effects. The advantage of running it that close is you have less chance of an exhaust leak throwing off your reading, and you have a faster response time.

OP, if its touching, move it. I would kick myself in the balls if my wideband wore a whole in my return line and killed my motor. Especially if I knew it they touching.

So this means I could have mounted the sensor facing to the front of the car? I will but a new bung today, will oriellys also carry a bung plug? I'd rather not destroy my motor, thanks!

they sell the extended heat bung but not a 45 or 90 though Innovate Motor Sports On-Line Store

or there is this they sell but its mainly for bikes and atv's Innovate Motor Sports On-Line Store

Thanks man will look into those asap.

 

[T is for TURBO]

So this means I could have mounted the sensor facing to the front of the car? I will but a new bung today, will oriellys also carry a bung plug? I'd rather not destroy my motor, thanks!

Yep. Condensation is not a worry in the vertical section of the pipe as gravity will take care of it. This is not the greatest picture, but this shows where I have mine located. It's a bit close to the oil filter, but I can still remove either the filter or the wideband sensor with out having to drop the downpipe. The only real issue I had with this location was running the sensor wire to the cabin.

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[horizontalkev]

Dang your setup is clean, what kind of manifold is that?

I've decided to just move the sensor to a new location

 

[FIBA M - EC17PSE]

Dang your setup is clean, what kind of headers are those?

Headers? Its a manifold and its made by forced performance, headers are on non turbo'd cars

 

[horizontalkev]

Damn I just edited my last post from headers to manifold but you beat me to it I was hoping you weren't going to see that ..

 

[96ETT]

You could just buy a piece of copper and use it as a heatsink like they recommend in the documentation. If you are worried about it getting too hot that is.

 

[horizontalkev]

I actually have a 4x4 copper plate I was going to use but it came in too late, I needed the car back together so I have the heat sink just don't have it installed yet. When I relocate the sensor I will be installing the heatsink as well

 

[T is for TURBO]

Dang your setup is clean, what kind of manifold is that?

That picture was taken when it was in its really dirty state Thanks though

And like said above, it's a Forced Performance manifold

 

[horizontalkev]

Did you notice any power differences and did it change your exhaust time? Might order it looks amazing.

 

[GRAVEDIGGER]

did it change your exhaust time?

Huh???

 

[T is for TURBO]

I couldn't tell you. I upgraded the manifold at the same time I put a much larger turbo on. (I went from a big t-28 to a FP HTA Green). So all of the gains that I saw were almost solely due to the turbo upgrade. If there isn't anything wrong with your current manifold, and you're still using a stock turbo, there really is no benefit to upgrading your manifold. The stock 2g manifold flows really well and it's VERY stout, it's just not very pretty

did it change your exhaust time?

I assume you mean spool time. Again, I couldn't tell you. I never ran my new turbo on the stock manifold. My guess is that it probably hurts spool a bit since the runners are larger. Larger runners = less exhaust velocity in the lower rpm range. But it rips through the 4000-7,500 range like a raped ape. When I first got it running I kept hitting the rev limiter because I wasn't used to it. Again, mostly due to to the fact that the Green is a totally different animal and is still efficient at high rpms and with my boost levels.

 

[edged1g]

Yep. Condensation is not a worry in the vertical section of the pipe as gravity will take care of it.

This doesn't make sense. Condensation still occurs in vertical section and is irrelevant to the problem mentioned. The sensor still needs to be pointed downward to allow condensation to drain away from it. Meaning, you can't mount the sensor pointed upwards(using a 45 or 90) just because you are in the vertical section. Gravity has to be able to pull moisture away from the sensor.

 

[T is for TURBO]

If it's mounted in the vertical section of the down pipe, it is pointing perpendicular to the pipe. Gravity will still pull moisture away. It's no different then the stock location of the front O2.