Suggest a LSD for the XKR?
#1
Suggest a LSD for the XKR?
Well the guy at Quaife is an idiot. He didn't even realize that the QDF-5W that's still listed at their site is out of production now. He made me jump through a bunch of hoops just to find that out what he could have told me himself, so that company can go get screwed as far as I'm concerned, now and for the future.
So who else is making a unit that I can order for my 05 XKR?
So who else is making a unit that I can order for my 05 XKR?
#2
There is one listed here - with worldwide postage included.
Jaguar XK8 XKR XJ8 XJR Quaife ATB Limited Slip Differential | eBay
Don't know if that price is any good!?
Jaguar XK8 XKR XJ8 XJR Quaife ATB Limited Slip Differential | eBay
Don't know if that price is any good!?
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kulddy (02-07-2016)
#3
There is one listed here - with worldwide postage included.
Jaguar XK8 XKR XJ8 XJR Quaife ATB Limited Slip Differential | eBay
Don't know if that price is any good!?
Jaguar XK8 XKR XJ8 XJR Quaife ATB Limited Slip Differential | eBay
Don't know if that price is any good!?
Part Number QDF5W
I've been very happy with it.
Mark
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Jeff in Tucson (03-24-2013),
kulddy (02-07-2016)
#5
More power to the road; you simply cannot spin your tires. I know, I've tried. The ATB stands for automatic torque biasing; torque is shifted from the wheel that is about to slip to the other drive wheel. Cars like our XK8/Rs should have come with an LSD but Jaguar upper management didn't want to steal customers from big brother Aston Martin.
As far as fitting, forum member motorcarman, who runs a small independent jag shop near my home, installed it for me. I understand it was very straight forward but you do have to pull the differential.
Mark
As far as fitting, forum member motorcarman, who runs a small independent jag shop near my home, installed it for me. I understand it was very straight forward but you do have to pull the differential.
Mark
Last edited by mjlaris; 11-05-2012 at 09:44 PM.
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kulddy (02-07-2016)
#6
You can choose between different setups, so the Quaife (ATB one) or clutch type systems. Personally I prefer clutch type systems for a couple of reasons, and they also work better with traction control on with our cars
There you have 3 options,
- a x300 diff(iirc) but requires some modding to make it fit (but doable),
- a unit from gripper diffs (they build it into the diff housing for less then the Quaife unit alone)
- or one of the best but also the most expensive one the OS Giken TCD unit which I use now. OS Giken also sells the Neo version which is closer to the quaife in price.
There you have 3 options,
- a x300 diff(iirc) but requires some modding to make it fit (but doable),
- a unit from gripper diffs (they build it into the diff housing for less then the Quaife unit alone)
- or one of the best but also the most expensive one the OS Giken TCD unit which I use now. OS Giken also sells the Neo version which is closer to the quaife in price.
#7
You can choose between different setups, so the Quaife (ATB one) or clutch type systems. Personally I prefer clutch type systems for a couple of reasons, and they also work better with traction control on with our cars
There you have 3 options,
- a x300 diff(iirc) but requires some modding to make it fit (but doable),
- a unit from gripper diffs (they build it into the diff housing for less then the Quaife unit alone)
- or one of the best but also the most expensive one the OS Giken TCD unit which I use now. OS Giken also sells the Neo version which is closer to the quaife in price.
There you have 3 options,
- a x300 diff(iirc) but requires some modding to make it fit (but doable),
- a unit from gripper diffs (they build it into the diff housing for less then the Quaife unit alone)
- or one of the best but also the most expensive one the OS Giken TCD unit which I use now. OS Giken also sells the Neo version which is closer to the quaife in price.
OS Giken Super Lock LSD for JAGUAR XK Series X100 1996-2006 (Spl Black Case) [OS EDO Performance
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kulddy (02-07-2016)
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#9
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kulddy (02-07-2016)
#10
The OS Gilken site doesn't list Jaguar as supported. Is there a specific model that bolts in or is there machining required to fit it?
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kulddy (02-07-2016)
#12
This is going to make driving my Jag a lot more fun. And I'm buying this in preparation of the twin screw upgrade, which I plan on doing sometime this winter.
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kulddy (02-07-2016)
#13
Here is a comment from OS Giken:
"In essence, the Spec-S will feel like an open differential that doesn’t allow for unwanted wheel spin when exiting corners or “tail wagging” during heavy straight line accelerating (as the unit will provide progressive locking at equal rates to both wheels due to the centered design of our unit). For drag users, this will translate to greater straight line acceleration and keep the rear where it is supposed to be"
How that translates for our cars in speed on a dragstrip I can't tell.
An ATB has its advantages, and this is not to put that type down, and I think for most moderate drivers this is an easy one to drive with. The clutch types are more fun to drive (and more involving which I like), even with traction control on, as you can take short 90 degree turns very fast (ie a T crossing), where with an ATB the ECU will immediately pull power quickly, which could be dangerous.
#14
That's outdated. There is a new part, a dealer said that they actually haven't produced it yet or that it was built to order... or something. It sounded like he mentioned something about the distributor not having had that part in before and that he was calling Japan later today. I had trouble understanding what he said, he had an accent and the line was bad. I'm awaiting more info, but sounds like the NEO unit I'll be buying.
This is going to make driving my Jag a lot more fun. And I'm buying this in preparation of the twin screw upgrade, which I plan on doing sometime this winter.
This is going to make driving my Jag a lot more fun. And I'm buying this in preparation of the twin screw upgrade, which I plan on doing sometime this winter.
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kulddy (02-07-2016)
#16
An LSD for All
Well the guy at Quaife is an idiot. He didn't even realize that the QDF-5W that's still listed at their site is out of production now. He made me jump through a bunch of hoops just to find that out what he could have told me himself, so that company can go get screwed as far as I'm concerned, now and for the future.
So who else is making a unit that I can order for my 05 XKR?
So who else is making a unit that I can order for my 05 XKR?
Last edited by bfsgross; 01-06-2013 at 10:37 AM.
The following users liked this post:
kulddy (02-07-2016)
#17
Well the guy at Quaife is an idiot. He didn't even realize that the QDF-5W that's still listed at their site is out of production now. He made me jump through a bunch of hoops just to find that out what he could have told me himself, so that company can go get screwed as far as I'm concerned, now and for the future.
So who else is making a unit that I can order for my 05 XKR?
So who else is making a unit that I can order for my 05 XKR?
The following users liked this post:
kulddy (02-07-2016)
#18
Welcome here ;-)
The diff carrier of the 1996-2005 XK8/R (so steel version) is very different than the ones for the Stype, the aluminum bodied (so 2006 and up), has the similar carrier, so better to post on that forum as well.
Never the less, the carrier is slightly bigger so they may as well be able to offer different internals than currently available, so good to mention here as well.
The diff carrier of the 1996-2005 XK8/R (so steel version) is very different than the ones for the Stype, the aluminum bodied (so 2006 and up), has the similar carrier, so better to post on that forum as well.
Never the less, the carrier is slightly bigger so they may as well be able to offer different internals than currently available, so good to mention here as well.