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New tyres need to go on the rear?

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V8MoneyPit:

--- Quote from: Llanigraham on July 03, 2010, 15:51:40 ---When a vehicle oversteers, eg, continues to plough forward no matter what steering input is used, then MOST drivers will instinctively take their foot off either the brake or accelerator, thus bringing "drive/control" back to the front wheels.

--- End quote ---

That would be understeer then?  :P ;)

Range Rover Blues:
Far far safer to have a car understeer than oversteer, especially if it's oversteer where only the back wheels let go.  However, if you fit new tyres on the back and old ones on the fornt then the front axle is already turning faster than the back, even before you go into a corner.

On the RRC with the viscous coupling, LR recomend you only fit tyres in 4s.  what I don't get is they don't recomend rotating the tyres at all :-k

Oh, and with a viscous centee diff you tend to find it prmotes oversteer because the diff biases the drive to the rear in corners.

muddysteve:
and the look on peoples faces when you go round the outside of them on a roundabout side ways in a P38 is priceless  :-$


(it was a diesel spill, honest)

carbore:
I still find that advice (on those links) confusing becuase I agree with most of the facts, but not the conclusions.

YES, The front tyres ware faster, esp on a front wheel drive, but thats becuase they do the most work, surley its best to have the "fittest" tyres on the wheels doing the most work?

YES Newsest tyres are "stronger" and whilst im surprised that a rear blowout is harder to deal with than a front, again as the fronts do more work, surley you are much much more likley to have an age related tyre failure on the font than the rear (unless the vehicle is laden)

Also they BRAKING, most of the braking of a car is done on the front wheels due to weight moving farwards when you slow creating more pressure on the fronts. again, surley its best to have the best grip where the most breaking force is applied?

YES. I agree that most drivers will deal with understeer better than oversteer, but id strongly suspect that as the frotns are coping with turning force and cornering force (working harder) then they are more likley to skid than the rears which are essentially just "following".

I think ill look for some more info on this, especially as the links provided all seemed to be quotign the same source (they were too similar in wording).

Not to argue, but becuase im genuinley confused.

Range Rover Blues:
A lot of what you say is true, the front tyres do most of the work, given an even split of weight at least.

Yes they do the steering, the problem comes in the worst case, if you loose grip on the rear end you cannot keep it behind the front with any certainty.  Wheels that have stopped spinning have less grip than those that do and will eventually try to pass, if you loose the back end first it is very very hard to stop in a straight line whereas if you loose the front end you keep going in a straight line, in which case it is much harder to avoid obstacles and the stopping distance is increased considerably.

I guess it's the lesser of 2 evils.

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