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Car very sluggish with new tyres

  • 20-02-2014 11:06pm
    #1
    marlie2005
    Registered Users, Registered Users 2 Posts: 174 ✭✭


    OK maybe a silly question but in have put 4 new tyres on today and the drive home was very very slow. I had zero overtaking power on the roads and it felt like the car was taking an age to get up the gears.
    Is this normal breaking in with new tyres ?


Comments

  • #2
    Prenderb
    Registered Users, Registered Users 2 Posts: 1,560 ✭✭✭Prenderb


    Check your tyre pressures and make sure they've been inflated properly.


  • #3
    timmy4u2
    Registered Users, Registered Users 2 Posts: 1,079 ✭✭✭timmy4u2


    marlie2005 wrote: »
    OK maybe a silly question but in have put 4 new tyres on today and the drive home was very very slow. I had zero overtaking power on the roads and it felt like the car was taking an age to get up the gears.
    Is this normal breaking in with new tyres ?
    Thats mad. Did you fit the correct size tyres? Perhaps the handbrake cable got pulled that little extra while the car was on the lift and the handbrake has jammed on somewhat. Otherwise its just a coincidence.


  • #4
    marlie2005
    Registered Users, Registered Users 2 Posts: 174 ✭✭marlie2005


    timmy4u2 wrote: »
    Thats mad. Did you fit the correct size tyres? Perhaps the handbrake cable got pulled that little extra while the car was on the lift and the handbrake has jammed on somewhat. Otherwise its just a coincidence.

    Changed from 205/60/r16 to 205/55/r16. Was told that it would make little or no difference.. But the power is gone from the car.. It had just been through an nct and everything but the tyres flew through..


  • #5
    biko
    Registered Users, Registered Users 2 Posts: 81,220 ✭✭✭✭biko


    Underinflated tyres will make car feel like it's sluggish.
    Inflate to recommended pressure (it's usually on a plate in driver's door jamb or manual). If not sure put all tyres to 32 PSI, that should be about right.


  • #6
    jimgoose
    Registered Users, Registered Users 2 Posts: 20,194 ✭✭✭✭jimgoose


    marlie2005 wrote: »
    Changed from 205/60/r16 to 205/55/r16. Was told that it would make little or no difference.. But the power is gone from the car.. It had just been through an nct and everything but the tyres flew through..

    It won't. If anything, the very slight lowering of gearing caused by that change in profile should make it very slightly livelier. As said, check tyre pressures, brake-binding, etc.


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  • #7
    timmy4u2
    Registered Users, Registered Users 2 Posts: 1,079 ✭✭✭timmy4u2


    The problem these days with fitting tyres other than recommended sizes is how the ecu may react.
    Your speedo will be out by an extra 2mph at 60mph
    You are talking about approx .8 of a rolling inch less per wheel revolution.
    Shouldn't affect you much but it is possible.
    The links underneath should give you a good idea of sizes.

    http://ejelta.com/tiresize/index.html?ws16=1&ws15=1&ws14=1&m=&tiresize=205%2F60-16&minwidth=185&maxwidth=205&minratio=45&maxratio=70&minwheel=&maxwheel=&maxdelta=2

    http://www.1010tires.com/Tools/Tire-Size-Calculator


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