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St150 got faster

Patrico777
Patrico777
in Ford Fiesta Club

Featured Replies

Hi

wanted to ask it got colder these days and my st150 feels a lot faster is it because of the cold air ??

  • Quote


    Well cold air is more dense, and the denser the air the more "explosive" the fuel mixture (Nitrous) . . . Not sure weather it's turned cold enough to be able to tell a difference in performance? Could be. Someone else might know. 

  • Quote

    I doubt it has made any difference besides allowing your engine to run a little cooler, the performance increase is probably psychological.

  • Quote
    2 hours ago, Patrico777 said:

    Hi

    wanted to ask it got colder these days and my st150 feels a lot faster is it because of the cold air ??

     are you being serious ?

    it was 18 deg C in kent today lol.

  • Quote
    • Like 1

    It may feel different owing to a change in the fuel mix. I suspect that the mix of hydrocarbons in petrol is different in summer and winter owing to their different volatilities. Short hydrocarbons are cheaper to produce but evaporate at a lower temperature so you don't want too high a mix of them in warm conditions. Short hydrocarbons have a lower calorific value too so mpg would probably go down too.


  • Quote
    • Like 1
    34 minutes ago, Dan P said:

    It may feel different owing to a change in the fuel mix. I suspect that the mix of hydrocarbons in petrol is different in summer and winter owing to their different volatilities. Short hydrocarbons are cheaper to produce but evaporate at a lower temperature so you don't want too high a mix of them in warm conditions. Short hydrocarbons have a lower calorific value too so mpg would probably go down too.

     

    And today I learnt Dan is a petrol chemist, if it exists. The actual name escapes me, I hate colds and being sleepy :(

  • Quote
    • Like 1
    8 hours ago, Pullock said:

    And today I learnt Dan is a petrol chemist, if it exists. The actual name escapes me, I hate colds and being sleepy :(

    Petrolologist.

    (Joking for the more serious of us :-P)

  • Quote
    41 minutes ago, GaryPL said:

    Petrolologist.

    (Joking for the more serious of us :-P)

    After a quick google its petroleum chemist, that's such a boring title.

  • Quote
    • Author

    I started to use v power nitro instead of normal shell petrol could it be that ? 

  • Quote

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