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04-21-2021, 07:21 PM | #1 |
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O2 sensors
In Stock Eliminator on a car running multiple carbs.
Can anyone shed light on running O2 sensors? Are you running one in each collector or one in each header tube? |
04-21-2021, 08:13 PM | #2 |
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Re: O2 sensors
For sure if you run sensors on primary tubes particularly on something dual plane, you are going to get readings all over the map. Doing the primaries is going to give you ideas about how bad the fuel distribution is but not really the best choice for overall jetting decisions. The collector is the best compromise and where most people run them. Make sure you locate them far enough upstream to not get readings from the open exhaust reversion.
Jim Caughlin SS 6019 |
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04-22-2021, 11:42 AM | #3 |
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Re: O2 sensors
As a guy that runs 3 multi-carburated cars I have found both on the dyno and on the track to truly tune you need one in each primary. The collector O2 work but is an average of 4 cylinders and you can still.be way off. If you do run 8 make sure you have lots of battery reserve!!
Darcy Clarke 6254 SS/EA A/SA |
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04-22-2021, 01:08 PM | #4 | |
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Re: O2 sensors
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04-22-2021, 09:08 PM | #5 | |
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Re: O2 sensors
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04-22-2021, 10:13 PM | #6 | |
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Re: O2 sensors
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04-23-2021, 02:21 PM | #7 |
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Re: O2 sensors
One other comment on O2 sensors, they don't like leaded fuels so accept that they don't last for long periods of time. There is no solution to this so just accept them as a disposable item.
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04-24-2021, 03:25 PM | #8 |
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Re: O2 sensors
I run a 12 volt system and run 2 batteries do lots of reserve, not sure with 16 volt.
Yes on my stocker the max wedge intake presents the challenge, better tuners can figure ot out without but I chose to run 8 O2 sensors on the dyno and tuning was much easier and picked up good power. Darcy Clarke SS/EA A/SA |
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04-24-2021, 06:08 PM | #9 | |
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Re: O2 sensors
Quote:
The reason I asked the original question was, my engine builder is going to run 8 of them on the dyno. I just didn't know if we should run them while in the car. Things on the driverside will be tight. So I had thought about the collector instead. It sounds like we will put 8 in. Thank you for your help. |
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04-24-2021, 06:16 PM | #10 |
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Re: O2 sensors
Thank you everyone for the help.
Any help getting this 6 pack dialed in is greatly appreciated! |
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