348 - engine knock sensor? (using high octane fuel) | FerrariChat
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348 - engine knock sensor? (using high octane fuel)

Discussion in '348/355' started by Jas, Sep 3, 2005.

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  1. Jas

    Jas Formula 3

    Mar 2, 2005
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    #1 Jas, Sep 3, 2005
    Does anyone know whether the 348 engine has an engine knock sensor (so that the engine retards timing if fuel is low octane and causes pinking).

    I assume if it has one, then the 348 would benefit from high octane fuel (i.e. Shell Optimax at 98 RON). Otherwise I imagine there is no gain from this premium grade fuel.

    Any ideas?
     
  2. ernie

    ernie Two Time F1 World Champ
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    #2 ernie, Sep 3, 2005
    Not that I know of.
     
  3. thibaut

    thibaut Formula Junior

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    #3 thibaut, Sep 3, 2005
    I am sure it has anti knock sensors..... the manual should mention it BTW
     
  4. Jas

    Jas Formula 3

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    #4 Jas, Sep 3, 2005
    I've read the manual cover to cover and it does not mention the subject one way or the other :(
     
  5. Llenroc

    Llenroc F1 Veteran
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    #5 Llenroc, Sep 3, 2005
    Knock sensors did not appear on Ferrari V8s until OBDII in 1996.
     
  6. chrisx666

    chrisx666 Formula Junior

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    #6 chrisx666, Sep 3, 2005
    Section C looks pretty comprehensive in the OM - and you are right, there is no knock sensor.

    There probably are some benefits from using Optimax in an engine without a knock sensor, but higher power output is unlikely to be one of them IMO.

    Chris.



    Edited to say: Thanks for confirming that Vern, you posted as I was typing..
     
  7. henkie

    henkie La Passione...
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    #7 henkie, Sep 3, 2005
    We all drive Shell Vpower 100 octane here. No problems whatsoever.
     
  8. Jas

    Jas Formula 3

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    #8 Jas, Sep 4, 2005
    Thanks guys, I'll keep using the 98+RON stuff then......just a pity I'll get no extra oomph!
     

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