Colours

[Rarecolour]

Cause you have the front wheels pulling you through the corner.

[Nuclear Nick]

Cause you have the front wheels pulling you through the corner.

But that assumes the vehicle is under power, and also depends on the bias of drive to front and rear wheels. My understanding is PTV operates if it detects understeer by braking the inner rear wheel, regardless of how many wheels are driven.

[Rarecolour]

Cause you have the front wheels pulling you through the corner.

But that assumes the vehicle is under power, and also depends on the bias of drive to front and rear wheels. My understanding is PTV operates if it detects understeer by braking the inner rear wheel, regardless of how many wheels are driven.

It's part of the LSD system, so normally works while the vehicle is under power.
https://www.porschefremont.com/porsche- ... vectoring/

If the vehicle is AWD the front driven wheels help pull the car round anyway.

[Plyphon]

Cause you have the front wheels pulling you through the corner.

But that assumes the vehicle is under power, and also depends on the bias of drive to front and rear wheels. My understanding is PTV operates if it detects understeer by braking the inner rear wheel, regardless of how many wheels are driven.

It's part of the LSD system, so normally works while the vehicle is under power.
https://www.porschefremont.com/porsche- ... vectoring/

If the vehicle is AWD the front driven wheels help pull the car round anyway.

I don't wish to start another PTV+ argument but I think you're slightly off here -

Powered front wheels during a corner will create understeer, not solve it - you need those tyres to be gripping + turning, not accelerating + gripping + turning. What you want in this case is the car to be driving the rear wheels to 'push' you through a corner by rotating the car slightly via oversteer. This is why Audi's famously attracted the term 'Audisteer' to describe the understeer caused by their quattro system putting too much power through the front whilst cornering, resulting in terrible understeer.

The reason for this is fairly simple - if you accelerate, the centre of gravity in the car shifts towards the rear and the car squats down, unweighting the front tyres. This combined with power causes the tyres to become overwhelmed and break traction, introducing understeer.

PTV+ works by braking the inside rear wheel during a corner, thus helping achieve the rotation mentioned above by sending more power to the outside rear wheel. In the case of AWD vehicles, it actively works to correct the understeer introduced by applying power through a corner.

I'm unsure where this 'PTV+ doesn't work for AWD' myth came from. The physics, science and mechanics all exist to actually counteract some of the direct downsides of having an AWD system.

[Rarecolour]

But that assumes the vehicle is under power, and also depends on the bias of drive to front and rear wheels. My understanding is PTV operates if it detects understeer by braking the inner rear wheel, regardless of how many wheels are driven.

It's part of the LSD system, so normally works while the vehicle is under power.
https://www.porschefremont.com/porsche- ... vectoring/

If the vehicle is AWD the front driven wheels help pull the car round anyway.

I don't wish to start another PTV+ argument but I think you're slightly off here -

Powered front wheels during a corner will create understeer, not solve it - you need those tyres to be gripping + turning, not accelerating + gripping + turning. What you want in this case is the car to be driving the rear wheels to 'push' you through a corner by rotating the car slightly via oversteer. This is why Audi's famously attracted the term 'Audisteer' to describe the understeer caused by their quattro system putting too much power through the front whilst cornering, resulting in terrible understeer.

The reason for this is fairly simple - if you accelerate, the centre of gravity in the car shifts towards the rear and the car squats down, unweighting the front tyres. This combined with power causes the tyres to become overwhelmed and break traction, introducing understeer.

PTV+ works by breaking the inside rear wheel during a corner, thus helping achieve the rotation mentioned above by sending more power to the outside rear wheel. In the case of AWD vehicles, it actively works to correct the understeer introduced by applying power through a corner.

I'm unsure where this 'PTV+ doesn't work for AWD' myth came from. The physics, science and mechanics all exist to actually counteract some of the direct downsides of having an AWD system.

Quick question then, why is it optional on Porsches "4" models, and not standard if they are that bad?
You comment on Audis Quattro, but times have changed and most vehicles have active bias. Look in your Macan dash and see how the power is split and when.

[crockers]

You gotta love how a thread can deviate

[RGS]

I was just wondering what persuaded you to choose the Macan T when for much the same money or not much more, you could have ordered the Macan S with the superior 2.9 engine and which is generally regarded as the sweet spot in the Macan line up ?

[crockers]

Good Question and one I’ve asked myself.
Firstly around 5 mpg difference ( I know a weak argument)
Secondly there is a max budget I can afford - when I option up the S it’s about £5k more.
My wife doesn’t want a V6. It was hard enough convincing her to go % petrol.
She wants all the safety items we have on the Volvo so cutting spec back would be difficult.
Also the wait for a T is long the wait for a S is almost double that.
But yes I can see why you’re asking the Question as it’s one I ask myself

[PowerMalc]

You gotta love how a thread can deviate

Oh, are we onto deviated stitching now?

[crockers]

You gotta love how a thread can deviate

Oh, are we onto deviated stitching now?

Better than deviant.