Wideband O2 location

[Eric Stauch]

Is there a "better than other" place in a down pipe to put the O2 bung for a wide band? Its a 3" external gate pipe. Thanks, Eric.

 

[smoke20]

I put mine in the down pipe fits good but removed to do it. Cross over would work

 

[turbofrank]

Old school near conv new school closer to turbo. Just look at pics

 

[dpasadena]

wideband placement

I have had excellent results placing the sensor about 18" from the turbo

 

[Eric Stauch]

I have had excellent results placing the sensor about 18" from the turboView attachment 147676

Ok thank you, by the way what gate are you running? also why not mount the boost controller in the car? Thanks in advance, I ask because I am getting ready to swap to an external gate and may have a few more questions. Eric.

 

[Scott87]

The idea of putting the boost regulator that close to the turbo and under the hood is to cut down lag time and pressurizing of the lines.. This is done to prevent overboost in situations due to time delays in long lines.

Volume of a straw 1foot long as opposed to the volume of a 10foot straw.. P&V have an inverse relationship.

Ok thank you, by the way what gate are you running? also why not mount the boost controller in the car? Thanks in advance, I ask because I am getting ready to swap to an external gate and may have a few more questions. Eric.

 

[dpasadena]

Running a Tial gate and I have no need for the controller in the car. Everytime I change my boost levels(almost never), I would have to change the fueling. I just set the boost where I want it and leave it alone

 

[jasjamz]

I put mine in the down pipe fits good but removed to do it. Cross over would work

Has to be after the Turbo. Crossover would not be a good place.

 

[HighPSI]

Correct. The crossover will get too hot and also is under pressure which can skew your WBO2 readings.

We usually recommend in the downpipe at least 8 " from turbo. I also recommend that you don't have it in the very bottom (rust, etc.. can lay on it) or very top of the pipe (condensation). In other words, put it between 2:00 and 5:00 or 7:00 and 11:00. I hope I'm making sense

 

[turbofabricator]

Correct. The crossover will get too hot and also is under pressure which can skew your WBO2 readings.

We usually recommend in the downpipe at least 8 " from turbo. I also recommend that you don't have it in the very bottom (rust, etc.. can lay on it) or very top of the pipe (condensation). In other words, put it between 2:00 and 5:00 or 7:00 and 11:00. I hope I'm making sense

Let me see if you are making sense..........So.....I have to install the sensor after work, but before dinner? Or take a day off and install it after breakfast, but before lunch? Do I have that right Cal? It's so confusing.:biggrin:

 

[pacecarta]

im not sure but my guess would also be that he means eastern standard not pacific so you north west guys have to do the math

 

[HighPSI]

LOL! You guys are killing me

 

[JT'sV6]

Correct. The crossover will get too hot and also is under pressure which can skew your WBO2 readings.

Which way will it skew the readings? I tuned mine in the crossover but now have it in the dp but my sensor doesnt work anymore.

 

[HighPSI]

From what I have read, a rich reading will read even richer and a lean reading will read even leaner. In other words, it will "exagerate" the reading.

 

[Eric Stauch]

The idea of putting the boost regulator that close to the turbo and under the hood is to cut down lag time and pressurizing of the lines.. This is done to prevent overboost in situations due to time delays in long lines.

Volume of a straw 1foot long as opposed to the volume of a 10foot straw.. P&V have an inverse relationship.

Ok, Thank you! this helps out as this is all new to me. I have also been told when going to a external gate that I need to port the small hole on the exhaust housing to match the DP. Is there anything else I should do as I am swapping over? Eric.

 

[scojack_2001]

I put my wideband sensor in the 2 o' clock position in the downpipe just before the cutout on the framerail side. Not problems with rust or anything like that. Been working fine since.

 

[we4Mateo]

I put my wideband sensor in the 2 o' clock position in the downpipe just before the cutout on the framerail side. Not problems with rust or anything like that. Been working fine since.

I've run mine in the exact same place as yours for 2 years and 20k miles now and I've been told, with the dump open, the readings will be off but so far so good dump open or closed at the same boost level.

 

[2QUIK6]

I have an Innovate WB that uses I believe a OEM VW o2 and they recommend not installing it too close to the turbo due to heat and recommend it being at least 18" away so I put it in the straight pipe that replaced the cat convertor. Unlike a NB o2 the wb o2 does not need heat to be accurate.