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What is the highest (safe) rpm limit for punto 76bhp/ 1.3mjd ?

Discussion in 'Technical' started by pradeepsangwan, Apr 29, 2013.

  1. pradeepsangwan

    pradeepsangwan Amatore

    Messages:
    87
    Bhiwani, Gurgaon
    Gurgaon
    Grande Punto 1.3
    Gud one mate you have set a bench mark in terms of speed of 75hp ...... but my post was to know about the drawbacks of pushing your beauty to the limits.. any ways personally i love to see this beauty zooming past 200mark not everyday and also without losing its beauty ;)
  2. Italia-Linea

    Italia-Linea Staff Member Janitor

    Messages:
    2,123
    Pune
    The highest safe RPM for any car is the max rpm at which the engine cuts off. For Fiat MJD its 5600 rpm.
    Dont relate the same with the speed. In every gear your fuel will cut off at 5600 rpm.
  3. Akshay4384

    Akshay4384 Superiore

    I doubt this Figure.
    5000RPM is where the red Line starts.
    IMHO prolonged exposure to RPM's north of 4K,will not be good for the engine.
    And frequent red lining is not good for Diesel engines health.
    Leave the red lining for Petrols.
    Maximum i have done in my Linea is 4600RPM twice in 5th gear.
  4. amitp

    amitp Amatore

    Messages:
    63
    Pune, Maharashtra
    We have checked this by connecting to the OBD port. His Linea and my Punto 90 diesel have very similar cut off rpms, both showed 56xx.
    Also IIRC, injector cut off is recorded as an over revving incident by the ECU. Over-abusive drivers should take note of this.

    @Amit - Kindly confirm the fact about the over rev counter.
  5. Italia-Linea

    Italia-Linea Staff Member Janitor

    Messages:
    2,123
    Pune
    The figure is confirmed. Its built-in in the ECU, hard coded. Check on ECU scanner.

    Well ofcourse , redlining again and again will strain the engine and reduce the life. But the safety limit built in by the manufacturer is 5600 rpm which always has a factor of safety built in.
  6. bhai

    bhai Esperto

    Messages:
    1,181
    Ahmednagar
    Grande Punto 1.3 90 HP
    @ Italia linea
    5600 RPM is limit ?

    You mean all MJD can be reved upto 5600 RPM?
    & after that engine will be cut like my Pulsar 220 Fi?

    But my engine refuses to go above 5100 RPM.
    Is there anything wrong in ECU of my car?
    Last edited: May 19, 2013
  7. Akshay4384

    Akshay4384 Superiore

    Why do you want to rev it to 5K and Beyond,there is nothing beyond 4K in the MJD,at least in first 4 gears.
    In 5th you can push it.I was able to achieve ~4700RPM last tuesday in 5th gear.
  8. bhai

    bhai Esperto

    Messages:
    1,181
    Ahmednagar
    Grande Punto 1.3 90 HP
    In Neutral gear, my engine goes only upto 5100 RPM
  9. PatchyBoy

    PatchyBoy Esperto

    Messages:
    2,438
    Bangalore
    Italian tuneup???

    Rajan
  10. Akshay4384

    Akshay4384 Superiore

    Please do not try it again,revving in neutral causes only harm and nothing else.
    as i said,redline is ~5K,so its perfectly normal for it to rev till 5100.
    VW group cars cannot be revved beyond 3K at Neutral,its a good feature,wonder why fiat didnt provide it.

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