I filled up the cat with fuel yesterday. As I was leaving the station on to the highway, a car out of nowhere it seemed, was in the lane I was pulling into. Well, I nailed the gas BUT due to traction control, the engine power cut off(due to wheel spin I assume). NOT good. Luckily the car had the left lane open to scoot on by.


Wow, that major lag in acceleration could have ended up in a wreck. I suppose I could take the T/C off, but then I'm thinking of constant wheel spin during instances like this.


Anyone else ever get into the situation?


Would being in Sport mode have helped?

 

If the TC kicked in, you didn't have the traction to go fast anyway. Lack of traction was the issue, not the TC.

 

I understand. I barely felt any wheel slip before the engine power was killed. I didn't realize it was that sensitive.

 

One of the troubles of 400hp and a rear wheel drive car made of aluminium try it when it's damp the traction light will be permanently on lol

 

That scenario was one of the reasons I put a Quaife LSD in my XJR. I don't have problems like that anymore.

 

I was about to suggest that !

There's a particular road junction that I come out of and the outside wheel always looses grip (and mine's only a diesel ... mind you, low end torque and all that) and puff ! the traction vanishes, great if there's a car coming. I've considered putting a Quaife in, but I think my insurance company might load me.

How much did it cost, overall ie parts and labour, may I ask ?

 

DIY would be about $1400 u.s.

 

Yep, just happened to me last week when I was pulling into traffic and ran over the curb. I nailed the accelerator to get into traffic, the right rear wheel went over the curb just as I hit the pedal and the T/C cut all power for an less than a second. But as soon as that wheel hit the ground I was off like a scalded cat.

 

Yep, the human brain, good coordination, experience and judgement
will trump TC every time. A clutch diff would be preferable since
the helical types require at least some traction to lock. But, the
choices are slim to none in your combo.

As to the responses suggesting that TC engagement means that no
traction was available, that is not quite the case. An open diff and a
spinning tire will still get somewhere as long as the foot is kept in
it. The problem with TC is that the threshold is set too low and it
is not adjustable for driver preference.

 

Lol, been there once or twice but have learned my lesson, scary stuff


Hmm 250bhp here but around 543nm of Torque and know where you're coming from.
RWD even with brand new tyres but so quick to spin, it's an adjustment coming from FWD that's for sure

 

This seems kinda obvious, but what's the condition of your tires?

Does Sport mode do anything except delay the gear change?

 

You definitely would not put a xjr in sports and give it some when it's wet unless you like the car with the squiggly lines lighting up the dash lol these cars are so light on the back end I suppose you could turn it off if you like going nowhere fast seems like the lsd is the way to stop it spinning to much .
Is it a complete diff change or do they put all the stuff into the original diff casing

 

A LSD should have been standard on the XJR IMO.

 

Lots of people agree but apparently Ford would not allow it.

 

My experience exactly, it really seems to over-react. I wonder if it's anything to do with trying to control the thing in snow ? I think the 8-speed box (351 and later XF ?) has a snow/ice button, but we haven't of course, so it's go no way of our telling it.

As I understand it; it fits inside the existing housing and onto the existing crown wheel in place of the ordinary diff, and takes the inner ends of the existing drive shafts.