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  1. #1
    mikelytle1077's Avatar
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    safe afrs x charger

    hey guys whats a safe afr for an x charger my boost gauge is reading 11psi

    right now its:

    idle-13.5
    cruise still in vac-13
    cruise 0 psi-12.8
    boost 1-3psi-12.4
    boost 4-11psi-11.5

    can i lean the top some more? i noticed the limiter kick in at 8150rpm on the gauge and it goes very lean 13-14 and i back off ive put 1mm pitch in it so far thanks
    -mike


  2. #2
    monaroman76's Avatar
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    Quote Originally Posted by mikelytle1077 View Post
    hey guys whats a safe afr for an x charger my boost gauge is reading 11psi

    right now its:

    idle-13.5
    cruise still in vac-13
    cruise 0 psi-12.8
    boost 1-3psi-12.4
    boost 4-11psi-11.5

    can i lean the top some more? i noticed the limiter kick in at 8150rpm on the gauge and it goes very lean 13-14 and i back off ive put 1mm pitch in it so far thanks
    -mike
    That doesn't look too bad Mike. I'd bump the fuel pressure down slightly to get WOT AFR to around 12 though.

  3. +1 by:


  4. #3
    83.0 @ 8400 jhill19's Avatar
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    +1 looks good, might be a tad rich at wot 11.9 would be ideal

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  6. #4
    Boost-A-Holic's Avatar
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    It looked fast and sounded good! Smelt like gas.....then again i think that was my catch can




    P.S.- Hey Mike i just pulled the trigger on the ET 137x4. Takes two to tango buddy!
    Last edited by Boost-A-Holic; 04-01-2013 at 12:12 AM.

  7. #5
    Banned User
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    Geezers that didn't take long boost! Give us a review when you get it installed

  8. #6
    Boost-A-Holic's Avatar
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    Quote Originally Posted by thatdude596 View Post
    Geezers that didn't take long boost! Give us a review when you get it installed

    yessir

  9. #7
    Mod less, ride more! troyheb's Avatar
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    At the rpms and boost level you are at you are good. Like the others have said though I would lean it out closer to 12. The higher you rev the richer you need to be at WOT.

  10. #8
    Boost-A-Holic's Avatar
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    funny thing is were floating around on the water talking about AFRs and what not and Mike goes "o and hey BTW i got a ET 137 on its way". it immediately started to mess with my head. I got home and the mod-bug was so bad the only thing to make it go away was to order the wheel. God bless credit cards.....i can just pay later lol.

  11. #9
    AtoMIC_OraNGE greenbullet's Avatar
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    haha why go 137 when you can go 140??? haha you now have the bug... enjoy! its a sickly disease

  12. #10
    Eric Ocman's Avatar
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    should have just got the 68/140 XLE haha

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