Michelin Pilot sport 3

[Teutonic_Tamer]

But you do see EVO blatantly biasing their tyre tests!

[vRS Carl]

Im not saying they don't. Most "Tests" like that in these magazines are biased in some way. Depends who is providing the biggest sponsorship that year

The point i'm making is you are comparing FWD with a clever 4WD system that monitors the grip levels many hundreds of times a second and has 4 wheels to direct power to on 2 Axle's rather than 2 wheels on the same axle.

Hardly a fair comparison

[Teutonic_Tamer]

Im not saying they don't. Most "Tests" like that in these magazines are biased in some way. Depends who is providing the biggest sponsorship that year

The point i'm making is you are comparing FWD with a clever 4WD system that monitors the grip levels many hundreds of times a second and has 4 wheels to direct power to on 2 Axle's rather than 2 wheels on the same axle.

Hardly a fair comparison

When did I say I had aquaplaning under hard acceleration?  I didn't!  It was at a fairly constant speed, with a very light throttle.  So traction doesn't come into play - and nor does the specific type of drivetrain.  Period.  So there is no point trying to confuse traction with aquaplaning.

Secondly, the Torsen based quattro is purely an analogue system, and apportions the torque bias infinitely, steplessly, automatically, and purely mechanically.  It is vastly different to say a Haldex based system which relies totally on electronics.

The ONLY time it becomes unfair comparing front wheel drive with four wheel drive is under hard accleration.  Cruising at constant speed, or braking - the playing field is leveled, and neither has any distinct advantage.

[vRS Carl]

Utter rubbish. How does a free rotating axle and a driven axle compare wether your accelerating hard or not if you are driving at a constant speed then you are providing power to that axle and therefore if the TCS detects the front wheels losing grip then it will compensate at the rear. On a GTi it has no power at the rear so nothing to push it through the standing water.

However I never once mentioned acceleration so stop trying to twist my post to make yourself correct. I also never once said what I was saying was gospel and correct. I was pointing out that 4WD is better in the wet (wether aquaplaning or wet traction) and that MAY have an effect on how the car deals with the standing water. The traction control system in your RS4 is a lot more advanced than in a FWD GTi and you don't have to be driving hard for it to work. If you don't believe me go and feather your throttle on ice and watch the light have a disco on your dash.

As I and others have found (apart from you) PS3 are better than PS2 in the wet. I even stated that I had been through standing water in my vRS and found the car held straight and true and didn't aqua plane. The only difference between my vRS tyres and your GTi tyres is the cross section. Mine are 225 and yours are 235. Now maybe the difference is your extra 10mm width makes your car more susceptible to aquaplaning. But I doubt it.

As I said and I maintain. You cant compare 4WD against FWD. Whilst I haven't gone from PS2 to PS3 I know people who have and they have a different opinion of the tyre to you.

No one is saying you are wrong as that is your opinion based on your experiences. What people (myself) included are pointing out is that it could be other factors apart from the tyres.

[Teutonic_Tamer]

Carl - I think you are on your own with your thoughts on drivetrain.  I respectfully suggest you study some professional vehicle dynamics subjects - taught by professional and university qualified engineers.

Traction does NOT induce aquaplaning - although I accept that excessive and agressive traction will aggravate aquaplaning.  You need to speak to Michelin technical, (or any of the other tyre companies).

Aquaplaning is simply caused by the inability of the tread of the tyre to clear the water from the road surface.  Front wheel drive, rear wheel drive, four wheel drive, six wheel drive - they all have no effect.

And - you are also confusing aquaplaning with loss of traction - again, the two are very different.

[vRS Carl]

I suggest we just agree to disagree. As your obviously not understanding my point. Either because I'm not making it clear or your just interpretting it a different way.

[Janner_Sy]

i hear custom code remaps stop aquaplaning....