RE: Evoque introduces first nine-speed 'box
Discussion
stuart-b said:
Anyone considered that more gears actually puts LESS strain on the gearbox, drive shaft, flywheel, and clutches?
If you change from 3000 to 2000 and accelerate hard, there is a lot of engine motion to manage, if you change from 3000 to 2700, the amount of energy to dissipated through the clutches and flywheel will be less.
Definitely beneficial on up shifts.
Just a thought - could be nonsense.
Why would you change up i.e '3000 to 2000' and accelerate hard, or am I not reading it correct !If you change from 3000 to 2000 and accelerate hard, there is a lot of engine motion to manage, if you change from 3000 to 2700, the amount of energy to dissipated through the clutches and flywheel will be less.
Definitely beneficial on up shifts.
Just a thought - could be nonsense.
benzpassion said:
Are you/JLR's press people really claiming that the Evoque will be the first vehicle worldwide to use ZF's new 9-speed gearbox?
Have you/they not heard of the 2014MY Jeep Cherokee?
http://www.autoblog.com/2013/02/22/2014-jeep-chero...
Do you not know that Chrysler/Jeep/Fiat Group have been working with ZF too, on the first usage of ZF's new 9-speed for FWD/All-wheel drive installation?
Did you know that as well as the 2014MY Jeep Cherokee the 2013 Dodge Dart is slated to get the new ZF 9-speeder later this year too?
If you do know that, and know that the new Jeep Cherokee is expected to hit US showrooms in the Fall of this year, and that Land Rover will not get the 9-speed-fitted Evoque into showrooms until early to mid 2014 at the earliest, and that their claim to be the 'First' rests solely only on them showing a supposed 9-speed Evoque prototype at Geneva next week, why are you even deigning to run this ridiculous story?
To put it clearly, Jeep are/will be the 'First'.
Land Rover are doing their usual spoiler operation schtick, deceiving the gullible, abetted by compliant hacks.
Actually, there's been no official confirmation yet on when or whether the Cherokee will get the nine-speed. Not saying it won't, but it hasn't been announced (see within the article to which you link, "No word yet on powertrain or pricing"). As I'm sure you're aware, ZF produces these gearboxes and sells them to countless manufacturers across the world. Whether Land Rover or Jeep chooses to announce that they'll be fitting that gearbox first is entirely up to them. The only car that has been confirmed (officially) as having the 9HP is the Evoque; I would consider that to make it the car in which the gearbox is making its public debut - which is what the article actually states, contrary to your assertion that it claims the Evoque will be the first vehicle to use the gearbox, a subtly different thing.Have you/they not heard of the 2014MY Jeep Cherokee?
http://www.autoblog.com/2013/02/22/2014-jeep-chero...
Do you not know that Chrysler/Jeep/Fiat Group have been working with ZF too, on the first usage of ZF's new 9-speed for FWD/All-wheel drive installation?
Did you know that as well as the 2014MY Jeep Cherokee the 2013 Dodge Dart is slated to get the new ZF 9-speeder later this year too?
If you do know that, and know that the new Jeep Cherokee is expected to hit US showrooms in the Fall of this year, and that Land Rover will not get the 9-speed-fitted Evoque into showrooms until early to mid 2014 at the earliest, and that their claim to be the 'First' rests solely only on them showing a supposed 9-speed Evoque prototype at Geneva next week, why are you even deigning to run this ridiculous story?
To put it clearly, Jeep are/will be the 'First'.
Land Rover are doing their usual spoiler operation schtick, deceiving the gullible, abetted by compliant hacks.
Edited by benzpassion on Wednesday 27th February 11:57
E38Ross said:
MikeyBoy2000 said:
9 Gears........? Purely marketing - no technical advantage here at all.
erm, you think you know better?ok then.
nickfrog said:
longblackcoat said:
I run 32:16 singlespeed (with a steel frame for maximum olde-worlde effect) , so I'm not sure the cars are competing with me............
Big thighs. Gets you fit though, it really does. And it adds a massive level of smugness once you've got to the top of the hill........
longblackcoat said:
nickfrog said:
longblackcoat said:
I run 32:16 singlespeed (with a steel frame for maximum olde-worlde effect) , so I'm not sure the cars are competing with me............
Big thighs. Gets you fit though, it really does. And it adds a massive level of smugness once you've got to the top of the hill........
benzpassion said:
Are you/JLR's press people really claiming that the Evoque will be the first vehicle worldwide to use ZF's new 9-speed gearbox?
Have you/they not heard of the 2014MY Jeep Cherokee?
http://www.autoblog.com/2013/02/22/2014-jeep-chero...
Do you not know that Chrysler/Jeep/Fiat Group have been working with ZF too, on the first usage of ZF's new 9-speed for FWD/All-wheel drive installation?
Did you know that as well as the 2014MY Jeep Cherokee the 2013 Dodge Dart is slated to get the new ZF 9-speeder later this year too?
If you do know that, and know that the new Jeep Cherokee is expected to hit US showrooms in the Fall of this year, and that Land Rover will not get the 9-speed-fitted Evoque into showrooms until early to mid 2014 at the earliest, and that their claim to be the 'First' rests solely only on them showing a supposed 9-speed Evoque prototype at Geneva next week, why are you even deigning to run this ridiculous story?
To put it clearly, Jeep are/will be the 'First'.
Land Rover are doing their usual spoiler operation schtick, deceiving the gullible, abetted by compliant hacks.
I doubt they will be, as the Evoque will be released September this year, not mid-2014 as you say.Have you/they not heard of the 2014MY Jeep Cherokee?
http://www.autoblog.com/2013/02/22/2014-jeep-chero...
Do you not know that Chrysler/Jeep/Fiat Group have been working with ZF too, on the first usage of ZF's new 9-speed for FWD/All-wheel drive installation?
Did you know that as well as the 2014MY Jeep Cherokee the 2013 Dodge Dart is slated to get the new ZF 9-speeder later this year too?
If you do know that, and know that the new Jeep Cherokee is expected to hit US showrooms in the Fall of this year, and that Land Rover will not get the 9-speed-fitted Evoque into showrooms until early to mid 2014 at the earliest, and that their claim to be the 'First' rests solely only on them showing a supposed 9-speed Evoque prototype at Geneva next week, why are you even deigning to run this ridiculous story?
To put it clearly, Jeep are/will be the 'First'.
Land Rover are doing their usual spoiler operation schtick, deceiving the gullible, abetted by compliant hacks.
Edited by benzpassion on Wednesday 27th February 11:57
How good are modern CVT's? The only two I've driven are Hydrostatic (engine drives and oil pump and oil driven motors drive the wheels) which is only really efficient over a fairly low speed range, and belt drive with variable width pulleys, which needed regular servicing and wasn't fantastically reliable. These were a few years back though, and were in combines where you want to keep constant RPM to drive the internal mechanics while varying your forward speed.
Mr2Mike said:
cookie1600 said:
Surely now this is getting daft? Aren't you better off with a well designed, robust CVT type arrangement for this kind of vehicle?
You'd always be better off with a well designed, robust CVT, but sadly they don't appear to exist just yet. All practical CVT's have problems that limit their use e.g. low torque limits, poor efficiency, reliability, vibration etc.The most common form of CVT is a belt sliding across two conical pulleys to vary the ratio which is indeed utterly pony. Certainly in every application I've tried anyway.
There was a time when we were perfectly happy with 3 speed autos, especially when attached to something of 4.2 litres (ah happy days).
I can understand the desire for 5 speed autos, maybe even 6 - but 9? Nine!
I'm mystified as to wh,y when cars have more power and torque than ever, we seem to be getting more and more ratios, not fewer.
I can understand the desire for 5 speed autos, maybe even 6 - but 9? Nine!
I'm mystified as to wh,y when cars have more power and torque than ever, we seem to be getting more and more ratios, not fewer.
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