Oxygen sensor installed

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Oxygen sensor installed

Post  tconnection on November 19th 2015, 11:12 am

I'm wanting to install a o2 sensor and vacuum gauge. It carburetored. My build is in the build section. What parts do I need to install each?
My ignition is the black 7al3.
Thanks

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Re: Oxygen sensor installed

Post  Dave De on November 19th 2015, 10:44 pm

Most wide bands come with the O2 sensor and if they dont they will specify a Bosch part number. I installed an Innovate wide band dual channel to measure both sides and it came with O2 sensors and the bungs to weld into the collectors. Im liking the kit so far for the e85 setup Im running. Still tweaking the mixture but its close.
If you're interested I found the kit on Amazon for $315 and price matched it at Summit.
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Re: Oxygen sensor installed

Post  tconnection on November 20th 2015, 1:31 am

Sound good. I'm gonna look into it. Would u know whether the o2 sensors will screw in an evac bung?
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Re: Oxygen sensor installed

Post  68formalGT on November 20th 2015, 3:23 am

Dave De wrote:Most wide bands come with the O2 sensor and if they dont they will specify a Bosch part number. I installed an Innovate wide band dual channel to measure both sides and it came with O2 sensors and the bungs to weld into the collectors. Im liking the kit so far for the e85 setup Im running. Still tweaking the mixture but its close.
If you're interested I found the kit on Amazon for $315 and price matched it at Summit.

Do you see differences between the 2 sides?
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Re: Oxygen sensor installed

Post  Dave De on November 20th 2015, 1:20 pm

I doubt that the evac bungs would fit the O2 sensors. The threads are metric.
The kit is from Innovate Motorsports, model DLG-1
It has a connector to record data for your lap top and can be set to lambda as well.
I did see a difference from each bank at idle and part throttle. I was able to tune it be balanced. At WOT it is even from side to side and I jetted up to get the AFR down to 12.1 on e85.
A wise investment for $315
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Re: Oxygen sensor installed

Post  68formalGT on November 20th 2015, 1:33 pm

Dave De wrote:I did see a difference from each bank at idle and part throttle. I was able to tune it be balanced. At WOT it is even from side to side and I jetted up to get the AFR down to 12.1 on e85.
A wise investment for $315

Was it from slight intake port air flow differences?
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Re: Oxygen sensor installed

Post  jasonf on November 20th 2015, 2:56 pm

How far back did you install them?
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Re: Oxygen sensor installed

Post  Dave De on November 20th 2015, 6:22 pm

Mounted as far back as possible on the collectors. That is about 12 to 15 inches from the front of the collector.
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Re: Oxygen sensor installed

Post  tconnection on March 8th 2016, 2:55 pm

I got a single innovate motorsport hooked up and my reading is 22. Is it rich or lean?
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Re: Oxygen sensor installed

Post  Curt on March 8th 2016, 7:47 pm

tconnection wrote:I got a single innovate motorsport hooked up and my reading is 22. Is it rich or lean?
Thanks

You have it mounted to close to the exit.  Move it up in one of the pipes about 6-8" from the exhaust port.
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Re: Oxygen sensor installed

Post  tconnection on March 9th 2016, 12:07 am

Yea I do have it close the exit. So you're saying mount bout 5 inches before the exit or in one of the pips of the collector?
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Re: Oxygen sensor installed

Post  tconnection on March 9th 2016, 12:13 am

Which end of the collector is considered the front?

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Re: Oxygen sensor installed

Post  whatbumper on March 9th 2016, 1:19 pm

tconnection wrote:Yea I do have it close the exit. So you're saying mount bout 5 inches before the exit or in one of the pips of the collector?
Thanks

on the exhaust pulse you are reading fresh air being sucked back in.

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Re: Oxygen sensor installed

Post  Curt on March 9th 2016, 7:55 pm

tconnection wrote:Yea I do have it close the exit. So you're saying mount bout 5 inches before the exit or in one of the pips of the collector?
Thanks

Mount it in the pipe 6-8" from the head. Any pipe.
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Re: Oxygen sensor installed

Post  68formalGT on March 9th 2016, 8:36 pm

Curt wrote:Mount it in the pipe 6-8" from the head. Any pipe.

Would it be better to be on one the 4 corners(leaner) or the 4 middle(richer)?
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Re: Oxygen sensor installed

Post  Curt on March 10th 2016, 12:20 am

68formalGT wrote:
Curt wrote:Mount it in the pipe 6-8" from the head. Any pipe.

Would it be better to be on one the 4 corners(leaner) or the 4 middle(richer)?

That's a good question, but good info in any pipe is better than worthless info in the collector. Without 8 O2 sensors, you're not going to know the balance anyway. I know guys that have 1 and 2 sensors with bungs in every tube and they will move them around. You can test every hole with 1 sensor and 8 bungs.
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Re: Oxygen sensor installed

Post  whatbumper on March 10th 2016, 1:01 am

Right after the merge is fine. Try to aim between the tubes as much as possible. We get great readings like that.

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Re: Oxygen sensor installed

Post  jasonf on March 10th 2016, 12:12 pm

A couple wide band things to make note of that some aren't aware of....

- you can't have any exhaust leaks, loose slip connectors are exhaust leaks and allow fresh air in the header screwing up your reading.

- Holley/Innovative recommends 18" past the collector. Obviously if there is no exhaust you have to go at the collector (or pipe) as mentioned.

- they do no like leaded fuel.

- if heated they need to have power at all times (while the car is running obviously) or deposits will build up on the sensor causing poor readings.

- different brands of sensors will have different readings. You must run the sensor that your measuring device (gauge) is designed for. If you go to a dyno and it has a different brand of O2 sensor the AFR readings could be slightly different because they are calibrated differently.
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