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blowing smoke after cam install

Discussion in 'V8 Development and Modification' started by monaroman76, Apr 15, 2009.

  1. monaroman76

    monaroman76 New Member

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    Hey guys just installed a 218/218 blue racer crane cam into my VN SS, The car runs excellent and sounds real nice. I have noticed that it blows a bit of white smoke now, mostly seems to be on start up. What could be causing this? could it have anything to do with the break in lube being used or anything like that?
    Cheers guys
     
  2. VT-565

    VT-565 New Member

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    white smoke you say? white smoke is generally unburnt fuel.
    could it be grey smoke? oil?
     
  3. monaroman76

    monaroman76 New Member

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    I thought it was the other way around?
     
  4. gelousi

    gelousi New Member

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    white/blueish is burning oil, n black is unburnt fuel could be running rich or maybe just valve steam seals and its burning oil.
     
  5. greenfoam

    greenfoam New Member

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    Could be running rich. Bigger cams are not as efficient at low revs as the standard cam and will run alot richer. See how you go in a couple days
     
  6. monaroman76

    monaroman76 New Member

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    thanks for the input guys. Is it possible it could be my valve stem seals as i didnt change them?
     
  7. VT-565

    VT-565 New Member

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    black is burnt fuel whilst overfueling.
    white is generally unburnt whilst overfueling. blue/grey smoke as mentioned is usually oil.
     
  8. gelousi

    gelousi New Member

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    do u need to change ecu or re-map it to run with this cam or just straight bolt on?
     
  9. monaroman76

    monaroman76 New Member

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    It started and ran with out the tune, but i never drove it like that. I got a tuned memcal from greenfoam.
     
  10. greenfoam

    greenfoam New Member

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    Never mind your smoke for a moment, how does it go :)?
     
  11. monaroman76

    monaroman76 New Member

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    Ahh it goes very well actually, really happy with it. Pulls really hard til about 5500 rpm, and sounds awesome. Can't wait to get it on the 1/8th again and see how it compares. What would you suggest my next mod to be Jason? I was thinkin i would go with a set of roller rockers...
    Is there any way i can make it idle a little slower Jason?
    Once again thanks a lot for the memcal tune, couldn't be happier :thumbsup:
     
  12. greenfoam

    greenfoam New Member

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    Yeah I can slow the idle down no problem if you rekcon it will be stable at a lower rpm, message me about it :)
     

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