I'm a bad boy...

[Centurion07]

My mechanic likes that^ one too.

"You could've built another one by now". Twat.

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[SteveyB]

Just a quick note on mixing tyres, basic ally don't do it. The first year I had my 5 series my local tyre dealer advised that I only needed winter tyres on the rear so that's what I had fitted in the November. On my first drive, in the dry, no snow the car was virtually uncontrollable. I contacted the tyre manufacturer and spoke to a very knowledgeable and technical man who told me it was no surprise. Modern DSC/ traction systems can detect differences in tread pattern, side wall flex etc. and then try to correct things which don't exist. This was true as my DSC warning light was flashing when cornering and overtaking. I ordered two more identical winter tyres for the front and all those problems disappeared and normal service resumed. I made the point of telling my tyre dealer never to recommend this again. A police traffic cop who uses my gym says it is often a factor in accidents and one that they look for on routine stops, particularly on high performance cars and those with more highly developed DSC systems.
Be warned, stick with the same boots on all four feet.

 

[Enoch]

Gibbo.....I'm not convinced that the Mustang is a "sports car".... Well it doesn't fit my narrow minded view of what makes a sports car

Not strictly relevant, but did you know that the Yamaha Moto GP team ran Michelin rear and Dunlop front back in the days of multi tyre manufacturers..

And finally I think we need to accept, that car balance, handling and set up etc, is not that relevant for 90% of drivers whom will use their cars as a means of getting from a to b, and will never do track days etc..

 

[Gibbo205]

Gibbo.....I'm not convinced that the Mustang is a "sports car".... Well it doesn't fit my narrow minded view of what makes a sports car

Not strictly relevant, but did you know that the Yamaha Moto GP team ran Michelin rear and Dunlop front back in the days of multi tyre manufacturers..

And finally I think we need to accept, that car balance, handling and set up etc, is not that relevant for 90% of drivers whom will use their cars as a means of getting from a to b, and will never do track days etc..

Its still important to be honest, a big one safety and as correctly mentioned above it can also cause upset with the cars electronic systems and finally never ever mix tyres on the powered axle, it will vastly reduce lifespan of differential.

One other thing makes me wonder is alignment settings can have big impacts on handling and how a car behaves.

For example if the rear is toed in as it should be but the front is also running too much toe in then everytime you cross white lines in a straight line the car will snatch and could go sideways, especially with what happened to Ian Whu in a straight line.

An alignment check really is crucial on these cars as we know from our friends across the pond the cradle can be miss-aligned and you have to wonder what else might be out of specification. If the car has bad alignment then the car will be a lot harder to control even potentially unsafe.

 

[slowhand99]

Be warned, stick with the same boots on all four feet.

Ditto.
...and insurance companies will walk away if you put winter tyres on anything other than all 4.

 

[stevec]

Sorry Gibbo, last thing I want to do is get in to a debate with you over modding you are clearly streets ahead of me but sometimes people in the know get carried away and don't actually think through what they are saying

Not a modder but I have been an engineer for years and I have a good understanding of physics and subjects such as energy, force and fluid dynamics. My business partner designed parts for Eurofighter and has an even better understanding than myself

I AGREE with you that putting 4 better tyres on is better but I cannot agree that improving the rear is going to make the car more dangerous. Rubbish! It may be that Ian Whu's car would still be on the road right now had he had MPSS tyres on the back.

You say that having better tyres on the back would give more confidence in corners so you push harder into a corner and end up crashing. Okay, so what about all the mods you have done? Is the whole point not to give the car a higher cornering speed, more confidence in cornering? All on the P Zeros, I would suggest that you should have done none of these mods until you had changed tyres!

Worse case scenario by putting better tyres on the back is that you turn the car from one that the back wants to let go first to the front, albeit at a faster speed.

I have to reiterate, I agree that its better to change all four but a also seriously believe that changing the rears only is safer than no change at all.

 

[twiggy]

I'm starting to hope Mark the Cabby made a mistake and will chip in with "Sorry I meant I got 4 tyres" in a mo.

 

[stevec]

Ditto.
...and insurance companies will walk away if you put winter tyres on anything other than all 4.

Winter tyres is a different thing entirely.
There will be plenty of cars on the road with different makes of tyre across the 4 wheels. As long as you have the same size across each axle and the correct size you would be fine

 

[Mark The Cabby]

I'm starting to hope Mark the Cabby made a mistake and will chip in with "Sorry I meant I got 4 tyres" in a mo.

How about,

2 this month,

2 in April and...

The car in May?????

:chill:

 

[zero7]

fuck the tyres, whats in the boxes.

 

[daltron]

The wife has said no more... I said okay, but I have a empty loft ...

Never lie to your wife!

Besides, asking forgiveness is easier than asking for permission.

 

[Gibbo205]

Sorry Gibbo, last thing I want to do is get in to a debate with you over modding you are clearly streets ahead of me but sometimes people in the know get carried away and don't actually think through what they are saying

Not a modder but I have been an engineer for years and I have a good understanding of physics and subjects such as energy, force and fluid dynamics. My business partner designed parts for Eurofighter and has an even better understanding than myself

I AGREE with you that putting 4 better tyres on is better but I cannot agree that improving the rear is going to make the car more dangerous. Rubbish! It may be that Ian Whu's car would still be on the road right now had he had MPSS tyres on the back.

You say that having better tyres on the back would give more confidence in corners so you push harder into a corner and end up crashing. Okay, so what about all the mods you have done? Is the whole point not to give the car a higher cornering speed, more confidence in cornering? All on the P Zeros, I would suggest that you should have done none of these mods until you had changed tyres!

Worse case scenario by putting better tyres on the back is that you turn the car from one that the back wants to let go first to the front, albeit at a faster speed.

I have to reiterate, I agree that its better to change all four but a also seriously believe that changing the rears only is safer than no change at all.

Cant agree with you sorry, you failing to realise things such as water dispersion, the front tyres work in harmony with rear tyres when it comes to water dispersion. Running different tyres front to back could actually increase the chance of aqua planing, this is not safer.

Then tyre wall construction, for example Bridgestone/Yokohama have rather stiff sidewalls, whereas Michelin/Goodyear are softer, this can upset balance.


Could it be safer than running the stock poor Pzero's all round, who knows no one is going to prove it. Will it un-balance the car running different brands front to rear, of course it will.

I've done my modifications because tyres are easy to work with if you have some advanced driving experience and don't treat throttle like an on/off switch, try driving on semi-slicks down to 1-2mm in heavy rain, you learn to drive with the grip you have, what matters is balance is correct and the car behaves as one would expect and this is why matched tyres and good alignment are crucial. Even more important as our American friends would say is DRIVER MOD.

Of course wheels with better tyres is a modification that has a huge impact and is a great modification to any car and depending on the tyre you buy will impact the performance in difference conditions, for example if you still want to drive like you stole it in snow or very cold wet weather, fit winter tyres they work very well.

Of course if your happy to have potentially poor water dispersion, aquaplaning risk, un-balanced handling and want the car to handle more like a FWD understeer mess of a car, then fit some nice grippy tyres on the back and leave the fronts as they. I suppose it is safe to understeer of a corner and hit something head on due to cars have more safety designed for head on crash rather than going backwards into a wall/tree.

Just dont blame me when you go spinning in a straight line on the motorway because the rear lifted of the ground due to aquaplaning due to the front water dispersion pattern not matching the rear tyre pattern, thats what happens with a car running a staggered setup like ours by the way. ;)

 

[Gibbo205]

fuck the tyres, whats in the boxes.

Good point.

 

[zero7]

Good point.

By the way, I agree the Pirelli are crap tyres, Conti sport or PSS for me once these have worn a bit.

 

[Mark The Cabby]

fuck the tyres, whats in the boxes.

Good point.

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