6
Haldex = Helldex
- Thread starter VDuBNIT
- Start date
iGTI1
Go Kart Champion
Agreed.
Not to bash many of the "car enthusiast" but for daily driving/commuting it should suffice the average needs quite well.
iceorbital1
New member
long story short, cars with haldex are fwd biased, that is the car will behave as a fwd until it detect slippage in the front wheels. As a result you save fuel, but you don't have an awd button you can turn things on. Prior to gen 4 (which is the one in the 2012 Golf R) apparently the system was relatively slow to react and couldn't send much torque to the rear. With gen 4 and above the rears are engaged before actual slippage happens through some sort of magic. Plenty on the interwebs to read if you really want to. Also, search for the HPA comp controller if you want a more sporty feeling or the UM (United Motorsport) flash of the stock unit.
VDuBNIT
Go Kart Champion
So what exactly does flashing the Haldex system achieve?
corrado917
Go Kart Champion
:word:
VDuBNIT
Go Kart Champion
Got it, leave the farking Haldex alone. :thumbsup:
iceorbital1
New member
it turns it into something close to the HPA competition version. It'll make the system more sensitive, engage the rear under hard acceleration and also use torque transfer on the rear during hard breaking. This link is from the gen1 but the deal is pretty much the same http://forums.vwvortex.com/showthread.php?6947845-United-motorsport-performance-haldex-software
There's a piece that will fall apart over time, the giubo, consider replacement as maintenance of the awd system. http://forums.vwvortex.com/showthread.php?8005049-Does-this-look-shot-to-you-guys
VDuBNIT
Go Kart Champion
Thanks for the info, much appreciated.
bebersol
Ready to race!
if the Audi has a transverse engine then the quattro system is Haldex, an inline engine = torsen.
when you turn off the traction control in the snow the haldex is flat out fun.
Only problem I recall hearing about the haldex is when somebody tried to perform the haldex oil change and drained the differential oil not haldex oil. Then they left the diff dry because they were looking in the haldex's fill port and it was full. That predictably blew the diff up.
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Stage2Sasquatch
Go Kart Champion
From an engineering stand-point Haldex is a great system. It suffers from almost none of the drawbacks of a true AWD system which is powering all four wheels at all times. This means that you get the benefits of higher fuel economy while the new Gen 4+ Haldex systems are quick enough to send power basically instantly and in some cases preemptively to the rear wheels when needed.
Because of this part-time system, you will hear complaints from people online and journalists about it and on-track it does have a slightly different turn-in feel than a legit AWD system like the Evo 8-9-10 and powering out ability, but again realistically it is one of the best systems for road use. Besides literally a bone stock used S2000 or 2011-16 Mustang GT is a way better track car than any of the AWD Sedans/Hatches nowadays anyways. So may as well have the best street-car system there is.
Because of this part-time system, you will hear complaints from people online and journalists about it and on-track it does have a slightly different turn-in feel than a legit AWD system like the Evo 8-9-10 and powering out ability, but again realistically it is one of the best systems for road use. Besides literally a bone stock used S2000 or 2011-16 Mustang GT is a way better track car than any of the AWD Sedans/Hatches nowadays anyways. So may as well have the best street-car system there is.