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  1. #1
    Kamaki's Avatar
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    Mounting AFR-sensor

    Hi Guys
    The best place to mount O2 (AFR/LAMBDA) sensor on an ultra 300 stock exhaust?
    Anyone who have a great solution. would like to see pictures.
    Last edited by Kamaki; 02-02-2017 at 07:58 AM.


  2. #2
    Kamaki's Avatar
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    I'll think this one could be a solution but not easy to get one from J-line/Unlimited?

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    Last edited by Kamaki; 02-02-2017 at 02:45 PM.

  3. #3

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    Thats the one that goes between the two pipes where the exhaust filter is? Never tried that one.

    I've drilled/tapped the down pipe which works fine for tuning. Bad side is you cant idle or you'll ruin the sensor.

    Also used the plate that sandwiches between the head pipe. Works good too but only draws exhaust from 2 cylinders

  4. #4
    Kamaki's Avatar
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    Thats the one that goes between the two pipes where the exhaust filter is? Never tried that one.
    "Yes thats the one (picture uploaded now)"

    I've drilled/tapped the down pipe which works fine for tuning. Bad side is you cant idle or you'll ruin the sensor.
    "Thats why aim trying to find another mont."

    Also used the plate that sandwiches between the head pipe. Works good too but only draws exhaust from 2 cylinders

    thanks

  5. #5
    ANTONYUK's Avatar
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    Quote Originally Posted by Kamaki View Post
    Thats the one that goes between the two pipes where the exhaust filter is? Never tried that one.
    "Yes thats the one (picture uploaded now)"

    I've drilled/tapped the down pipe which works fine for tuning. Bad side is you cant idle or you'll ruin the sensor.
    "Thats why aim trying to find another mont."

    Also used the plate that sandwiches between the head pipe. Works good too but only draws exhaust from 2 cylinders

    thanks
    Mount in place
    ex filter it will be broken lambda

  6. #6
    ANTONYUK's Avatar
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    [You can put here
    I make the pulley if you need
    details in pm
    QUOTE=Kamaki;2819750]Hi Guys
    The best place to mount O2 (AFR/LAMBDA) sensor on an ultra 300 stock exhaust?
    Anyone who have a great solution. would like to see pictures.[/QUOTE]
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  7. #7
    Kamaki's Avatar
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    Quote Originally Posted by ANTONYUK View Post
    [You can put here
    I make the pulley if you need
    details in pm
    QUOTE=Kamaki;2819750]Hi Guys
    The best place to mount O2 (AFR/LAMBDA) sensor on an ultra 300 stock exhaust?
    Anyone who have a great solution. would like to see pictures.
    [/QUOTE]

    if I understad your pictures right, it will be 2 sensors on two cylinders near the head?

    What about values ​​when the sensors are as close to the exhaust valves and do you have done comparison to measuring on all four cylinders?

    Anyway i like the idea.

  8. #8
    ANTONYUK's Avatar
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    if I understad your pictures right, it will be 2 sensors on two cylinders near the head?

    What about values ​​when the sensors are as close to the exhaust valves and do you have done comparison to measuring on all four cylinders?

    Anyway i like the idea.[/QUOTE]
    You can measure on the first and second
    It's a different piston stroke
    use the average value
    This is the most accurate measurement

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  10. #9
    My name is Sean and I am addicted to STXs smokeysevin's Avatar
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    Couple issues there, the sensor will fluctuate wildly at idle and low down due to reversion in the cylinders because its so close to the head. Like antony said, you can do individual cylinders that way though which can be nice.

    I can make you an adapter like the threaded one that is lower profile though. If you are interested let me know and I will get you a price. I am also working on a new design to do something similar and allow you to swap with egt probes easily.

    Sean

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  12. #10
    LindenPWC's Avatar
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    Quote Originally Posted by smokeysevin View Post
    Couple issues there, the sensor will fluctuate wildly at idle and low down due to reversion in the cylinders because its so close to the head. Like antony said, you can do individual cylinders that way though which can be nice.

    I can make you an adapter like the threaded one that is lower profile though. If you are interested let me know and I will get you a price. I am also working on a new design to do something similar and allow you to swap with egt probes easily.

    Sean
    do you have any pic's on your mod? i'm interested in installing AFR sensor

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