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Thread: Afr questions?

  1. #1

    Afr questions?

    Hi all just curious as to how many mods i can chuck on my 05 rxp before i should install ab afr gauge to make sure im not running lean.

    Currently my ski has an upgraded light weight charger wheel, and an aftermarket intake grate.

    Id like to install a 4" fizzle air intake but wanted some opinions on if i need afr gauge before i mod any further.


  2. #2
    boost junkie skidoochris's Avatar
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    when you add more boost, you need more fuel
    sounds like you need one now

  3. #3
    Ok better get on it! What damages can be cause by running the wrong air fuel ratio??

  4. #4
    RXPJAY's Avatar
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    Quote Originally Posted by Fraser View Post
    Ok better get on it! What damages can be cause by running the wrong air fuel ratio??
    Lean, BOOM!!! Engine rebuild!! Little rich aint bad.

  5. #5
    skigolfnut's Avatar
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    the general rule of thumb was when you change out the stock intercooler to a External Intercooler you want to monitor and be able to change your AFR's
    I raced an 06 rxp with a X charger-green 42's and a Rotax racing ECU and never had a problem,

    but once I installed the Ex Ic, I put in a RRFPR and installed a AFR gauge, it is always better to be safe than sorry,

  6. #6
    RXPJAY's Avatar
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    And if you tap the mani for a gauge, use skigolfnut way. It is truly the best way to do pre 08 manis or any at that. Which he posted that prior to doing mine but I am lucky so far. If you decide to go with a gauge, I sell these.

    Click image for larger version. 

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  8. #7
    Thatnks for the info rxpjay! Are they mirror gauge holders??

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