Author Topic: Golf R  (Read 45513 times)

Offline Ess_Three

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Re: Golf R
« Reply #40 on: 20 September 2009, 10:37 »
Go test drive a new S3, its has gen4 haldex (same as the golf r)

I know how the S3 drives...and fully expect the Golf R to be similar...but some were suggesting it was some radical new 4WD system that can somehow sent 100% torque to the rear...which it plainly cannot do.
Nothing wrong with how it operates...but it's not some magical semi-RWD Golf!

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Offline Exonian

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Re: Golf R
« Reply #41 on: 20 September 2009, 10:50 »
Go test drive a new S3, its has gen4 haldex (same as the golf r)

I know how the S3 drives...and fully expect the Golf R to be similar...but some were suggesting it was some radical new 4WD system that can somehow sent 100% torque to the rear...which it plainly cannot do.
Nothing wrong with how it operates...but it's not some magical semi-RWD Golf!
I think too many people read too much into the VW press blurb! It's a bit like when the mk6 GTI was released and people thought it had some magical limited slip diff when all it really has is a clever traction control system.
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Offline dubcruiser

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Re: Golf R
« Reply #42 on: 20 September 2009, 10:57 »
Quote from the VW website....

Four-wheel drive
"Unlike the four-wheel-drive system fitted to the R32, which relied on differing wheel speeds between the front and rear axles, the Golf R uses a pre-charged hydraulic system that reacts quicker and reduces wheelspin by limiting the torque channelled through either axle. In extreme cases, up to 100 per cent of the torque can be channelled to the rear wheels if required."
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Offline Ess_Three

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Re: Golf R
« Reply #43 on: 20 September 2009, 11:40 »
Quote from the VW website....

Four-wheel drive
"Unlike the four-wheel-drive system fitted to the R32, which relied on differing wheel speeds between the front and rear axles, the Golf R uses a pre-charged hydraulic system that reacts quicker and reduces wheelspin by limiting the torque channelled through either axle. In extreme cases, up to 100 per cent of the torque can be channelled to the rear wheels if required."


There you go...seems clear enough to me.
But it can't happen on a transverse Haldex set-up...unless this is some revolutionary new system - which I doubt...

The later Gen Haldex don't purely rely in differing wheels speeds - they send power rearwards accoring to throttle angle and rate of opening...but that doesn't make it revolutionary, the S3 has it already!

Reducing my Golf count by the week....
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Offline SilverChariot

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Re: Golf R
« Reply #44 on: 20 September 2009, 14:50 »
Quote from the VW website....

Four-wheel drive
"Unlike the four-wheel-drive system fitted to the R32, which relied on differing wheel speeds between the front and rear axles, the Golf R uses a pre-charged hydraulic system that reacts quicker and reduces wheelspin by limiting the torque channelled through either axle. In extreme cases, up to 100 per cent of the torque can be channelled to the rear wheels if required."


The key phrase here is "In extreme cases". The car will still be set up to understeer under normal circumstances.
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Offline Ess_Three

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Re: Golf R
« Reply #45 on: 20 September 2009, 15:29 »

The key phrase here is "In extreme cases". The car will still be set up to understeer under normal circumstances.

The only extreme case I can think of is where the front wheels are on ice, and the rears have grip...then you will get 100% of the meaningful torque to the back wheels...although that's not the same as 100% torque, which suggests they can in some way disconnect the front wheels from being driven - which as far as I know, they can't.

I agree though, the default will be nice, safe, understeer.
VWs don't do lairy oversteer, either power oversteer, or lift off oversteer.

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Offline SilverChariot

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Re: Golf R
« Reply #46 on: 20 September 2009, 17:26 »
The only extreme case I can think of is where the front wheels are on ice, and the rears have grip...then you will get 100% of the meaningful torque to the back wheels...although that's not the same as 100% torque, which suggests they can in some way disconnect the front wheels from being driven - which as far as I know, they can't.

Yep - I agree. It'll not be rear-biased like the Torsen/longitudinal in Audi RSs.

I agree though, the default will be nice, safe, understeer.
VWs don't do lairy oversteer, either power oversteer, or lift off oversteer.

Don't have a problem with that setup - pretty much same as Mk5 R32 which gives it a nice planted feel. Though should be more responsive with the new "primed pump" system.
GONE BUT NOT FORGOTTEN!
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Offline R32UK

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Re: Golf R
« Reply #47 on: 20 September 2009, 19:17 »
I dont get why they have felt the need to have a "new system" if that is the only benifit. It only took a maximum of 15 degree rotation(spin) before torque was transfered to the rear wheels anyway.

Sound like a load of cobblers to me :undecided:

Offline Horney

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Re: Golf R
« Reply #48 on: 20 September 2009, 21:19 »
VWs don't do lairy oversteer, either power oversteer, or lift off oversteer.

Not driven a MKII in anger then?

nick

Offline Ess_Three

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Re: Golf R
« Reply #49 on: 21 September 2009, 05:56 »
Not driven a MKII in anger then?

nick

Not driven a 205 GTI?  :tongue:
That's lift off oversteer...My Mk3 GTI will lift off oversteer if you provoke it, as a Mk2 will...but not with the twitch of a toe that the 205 would.
The Golfs have a rock steady rear end next to things like that.

Reducing my Golf count by the week....
..but gaining motorcycles.