Found the forum a couple weeks ago and love all the information. Bought a 2001 XKR on Labor Day 2008. Love the car and wanted to share some performance numbers, in case any one was interested.

Took the car to the track today and got 5 runs in.

First Run: 13.54s @ 107.6mph Traction control on
Second Run: 13.55s @ 107.9mph Traction control off
Third Run: 13.41s @ 108.4 mph Traction control off
Fourth Run: 15.11s Traction control on*
Fifth Run: 13.88s @ 105.6 Traction control off

*First three runs the tires never broke loose at all. For the Fourth run I had decided to brake torque the car heavily to see if I could break my 13.41 run. However between run 3 & 4 I forgot to keep traction control off. So when I released the brake for the fourth run, the tires slipped and traction control kicked in and just bogged the car down, kind of embarrassing!! For the fifth run I did break the tires loose (remembered to turn traction control off). Plan on taking the car again, probably in two weeks to retest the results.

If any one is interested in picts, car info or more detailed time slip info just ask. I will be happy to post!

 

thats awsome, ya i would love to see some pics.. im hoping to take my 98 xjr to the track, never been but would love to. Those are good numbers too. wat did you mean by torque brake? i think i know but not sure.