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Changing final gear/drive ratio

Discussion in 'Engine Compartment' started by Sat-Chit-ananda, Oct 25, 2012.

  1. Italia-Linea

    Italia-Linea Staff Member Janitor

    Messages:
    2,123
    Pune
    Yeah that is how vento does. 100kmph in 2000 rpm. That will give you better fuel economy at given speeds. I have done 190 in my linea, so 90hp punto can also do it. Recently we took a 90hp dieseltronic box fitted punto on express way and touched 185kmph. Then we took my stock linea too and did the same kmph. This proved that tuning box doesnt increase the top speed.
  2. Is it with AC on or off.
  3. Akshay4384

    Akshay4384 Superiore

    These are the figures Speed Vs RPM for a Linea MJD(Achieved by me).
    All figures in 5th gear

    2000RPM-80km\hr

    2500RPM-100km\hr

    3000RPM-120km\hr

    3500RPM-140km\hr

    4000RPM-160km\hr

    4500RPM-180km\hr

    4600RPM-185km\hr(Max Speed Achieved till date).


    So going by this it should hit 190 at 4750 and 200 at 5000RPM.
    An I20 diesel 6 speed does 100 at 1900RPM
    I so wish my Linea did 100 at ~2000RPM in Overdrive.

    Altering gear ratios is not child's play i do not recommend it.
  4. Italia-Linea

    Italia-Linea Staff Member Janitor

    Messages:
    2,123
    Pune
    With AC on. Doesnt matter with on or off.
  5. theblack

    theblack Esperto

    Messages:
    2,188
    Bangalore
    i've never touched 5000rpm .. does the 75hp even do 5000 ?
  6. Akshay4384

    Akshay4384 Superiore

    Its not a petrol,doesnot really make sense to rev till 5000RPM.
  7. Ganges

    Ganges Esperto

    Messages:
    3,121
    Driver Seat _/
    :
    Grande Punto 1.3
    after 110 or 120 Kmph my car struggles alot.... its a lazy bulll...
    after 110 engine sounds alot,hence needs to restrict till 120 Kmph.is it common in all fiat cars?
  8. Akshay4384

    Akshay4384 Superiore

    Not in Linea at least,it pulls strongly till 150.
  9. rishike007

    rishike007 Esperto

    Messages:
    1,416
    Mumbai-Pune
    Pune- Mumbai
    Grande Punto 1.2
    Ganges.... don't try to run your car like petrol one.

    For diesel car if you achieve 100kmph then easily you can achieve 180kmph but for that you have to lower down the gear and then try to hit 150kmph with some higher rpm.

    I used to touch 150kmph in my indica when it already crossed 150000kms without any hassles. Which doesn't had turbo too.

    You have a beast. So you can easily do that.

    For pertol car, it's difficult to achieve 150kmph after 100kmph. I have already touched 180kmph in my 1.2 rpm at 5000+

    But for this I have to give proper pickup with gear to acceleration ratio.

    Just try it & let me know.

    NOTE: Please don't try this always & try this on known road only.
  10. Ganges

    Ganges Esperto

    Messages:
    3,121
    Driver Seat _/
    :
    Grande Punto 1.3
    Akshay,
    how about the engine sound ?

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