Porsche Carrera 4 could switch to Haldex AWD system?
03-27-2008, 08:04 PM
#1
Three Wheelin'
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Porsche Carrera 4 could switch to Haldex AWD system?
This is interesting news... Can anyone please help explain how the current 997 C4/C4S/TT AWD system works differently than the Haldex AWD system? 
With best regards,
http://www.autoblog.com/2008/03/27/p...ex-awd-system/
With best regards,
Porsche Carrera 4 could switch to Haldex AWD system
The beating heart of the Porsche 911 Carrera 4 (and Turbo) is the company's own proprietary wet-clutch all-wheel-drive system. Its traction dynamics are what Porsche owners and enthusiasts have come to know and trust for generations. Reports are now circulating, however, that Stuttgart is preparing to dump its own tried-and-tested in-house four-wheel-drive system for an outsourced Haldex transmission, reportedly equipped with the latest electronic limited slip differential. The rumors come at an interesting time for Porsche, considering that a wide range of vehicles from the Volkswagen Group into which Porsche just acquired majority interest – including VWs, SEATs, Skodas, Audis and even the Bugatti Veyron – use the Haldex. If the reports are accurate, the system could be out on the next iteration of the Porsche 911 Carrera 4 as well as the 911 Turbo spied while undergoing cold weather testing in Scandinavia just last month.
[Source: World Car Fans]
The beating heart of the Porsche 911 Carrera 4 (and Turbo) is the company's own proprietary wet-clutch all-wheel-drive system. Its traction dynamics are what Porsche owners and enthusiasts have come to know and trust for generations. Reports are now circulating, however, that Stuttgart is preparing to dump its own tried-and-tested in-house four-wheel-drive system for an outsourced Haldex transmission, reportedly equipped with the latest electronic limited slip differential. The rumors come at an interesting time for Porsche, considering that a wide range of vehicles from the Volkswagen Group into which Porsche just acquired majority interest – including VWs, SEATs, Skodas, Audis and even the Bugatti Veyron – use the Haldex. If the reports are accurate, the system could be out on the next iteration of the Porsche 911 Carrera 4 as well as the 911 Turbo spied while undergoing cold weather testing in Scandinavia just last month.
[Source: World Car Fans]
03-27-2008, 09:42 PM
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AutoX
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There is information on the Haldex system here:
http://www.autozine.org/technical_sc..._21.htm#Haldex
The Porsche system is described in the 997 Turbo brochure; Coochas has this on his website:
http://coochas.com/brochures/Resourc...7_turbo_us.pdf
I hope it is ok to provide these links.
Both websites also have lots of other interesting information!
Gus
http://www.autozine.org/technical_sc..._21.htm#Haldex
The Porsche system is described in the 997 Turbo brochure; Coochas has this on his website:
http://coochas.com/brochures/Resourc...7_turbo_us.pdf
I hope it is ok to provide these links.
Both websites also have lots of other interesting information!
Gus
03-30-2008, 01:41 PM
#4
I also wonder if the Haldex system, if used, will be an improvement? The only thing I know about Haldex systems is they're generally used as a FWD biased AWD system in Volvo's, VW's & Audi's (the AWD models which aren't using Quattro) and don't have the reputation of being "sporty." I'm guessing Haldex & Porsche are working on a new system which will be excellent but I wouldn't want to be one of the first to put my money down on one until they've received some real unbiased reviews.
04-14-2023, 09:11 PM
#5
Three Wheelin'
On the 996 the Haldex limits front bias to < 30%,, as it ages that drops off more.
Un fortunately they built it as a sealed unit, and nobody cares enough to provide a rebuild service(Likely more than a new unit)
I just wish I could've a solid 40% front bias on demand..
Haldex builds tons of industrial power coupling tech, far more than even the automotive tech.
Un fortunately they built it as a sealed unit, and nobody cares enough to provide a rebuild service(Likely more than a new unit)
I just wish I could've a solid 40% front bias on demand..
Haldex builds tons of industrial power coupling tech, far more than even the automotive tech.
