permanent awd

[tattoo101]

has anyone tried to make a 850/v70 permanent awd?

[grainqey]

Originally Posted by tattoo101

has anyone tried to make a 850/v70 permanent awd?

i dont think the rear driveshafts will cope, its not a quattro lol!

[T4Rick]

Would be interesting if it could be done

[244T]

An AWD is, just the torque is limited 'til its needed, I think the rear diff etc would take the full power, it does in a (^) and thats essentially where the components started off

[grainqey]

lol i dont think a group B quattro had haldex sized rear driveshafts...or even a normal RS2 quattro for that matter *rolls eyes*

i suppose the saving grace is that it'll only ever have to put down half the power that the engine can produce
alex

[mattyfezf]

Originally Posted by 244T

An AWD is, just the torque is limited 'til its needed, I think the rear diff etc would take the full power, it does in a (^) and thats essentially where the components started off

This is how I understood it - I read somwhere that under normal conditions, it's 90% to the front, but up to 50% can be diverted to the rear when traction is needed, but I cant remember where I read that.

[thrupp]

Originally Posted by mattyfezf

This is how I understood it - I read somwhere that under normal conditions, it's 90% to the front, but up to 50% can be diverted to the rear when traction is needed, but I cant remember where I read that.

in your handbook maybe?!?

[Backhill1]

I understand that for towing more drive is sent to the rear wheels when you connect the tow bar electrics. I dont know the exact % but the exct same system is used in the modern 4 motion system that volkswagen and Audi use.This haldex system is used in most 4x4 vehicles most sucessfully in the freelander. The reason its so good off-road is that it is biased to 4x4 upon take off and doesnt wait for a wheel to slip to engage.
Therfore you dont get stuck in the first place.
I have not tested the theory but after last winter intend to keep a trailer board in the boot as the whole waiting on a wheel to slip is a joke on ice and snow.
The computer just thinks you are driving and does hee haw to help you. By which time your wheels are now on sheet ice.

[JamesV70R]

Plugging in towbar electrics doesn't affect the AWD as far as I know. Nor should it.

The car detects the front wheels are slipping so transfers power to the rear wheels through a diferential of some form or another. I think the max power transfer is a 70/30 split.

Also from a personal view, the freelander isn't exactly "capable" offroad. Just my own experience while offroading in the Discovery ... we had to save more of them from the mud than anything else

[Clan]

Originally Posted by Backhill1

I understand that for towing more drive is sent to the rear wheels when you connect the tow bar electrics. I dont know the exact % but the exct same system is used in the modern 4 motion system that volkswagen and Audi use.This haldex system is used in most 4x4 vehicles most sucessfully in the freelander. The reason its so good off-road is that it is biased to 4x4 upon take off and doesnt wait for a wheel to slip to engage. Therfore you dont get stuck in the first place.
I have not tested the theory but after last winter intend to keep a trailer board in the boot as the whole waiting on a wheel to slip is a joke on ice and snow.
The computer just thinks you are driving and does hee haw to help you. By which time your wheels are now on sheet ice.

volvo use this , it is called " Instant-Traction" .

regarding waiting for a wheel to slip , it is literaly one spoke movement on the wheel rim, not exactly waiting for the wheel to spin ..