When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I just put cross-drilled rotors front and back from R1 Concepts, paired with Hella-Pagid OEM style pads. Overall braking power is excellent, but I do get a bit creep-groan which was not there with OEM parts. But the drilled rotors do sure look sharp.
I just put cross-drilled rotors front and back from R1 Concepts, paired with Hella-Pagid OEM style pads. Overall braking power is excellent, but I do get a bit creep-groan which was not there with OEM parts. But the drilled rotors do sure look sharp.
You must be kidding?
The XJR makes the all time top 20 in the 60-0 braking test. In fact it came in at number 9 with a 99 foot stop.
How much better do you want it to stop?
The number one car is the 2014 Corvette at a crazy 90 feet.
Here is the list;
You must be kidding?
The XJR makes the all time top 20 in the 60-0 braking test. In fact it came in at number 9 with a 99 foot stop.
How much better do you want it to stop?
The number one car is the 2014 Corvette at a crazy 90 feet.
Here is the list;
You must be kidding?
The XJR makes the all time top 20 in the 60-0 braking test. In fact it came in at number 9 with a 99 foot stop.
How much better do you want it to stop?
The number one car is the 2014 Corvette at a crazy 90 feet.
Here is the list;
Nope...not kidding. While they are large, they are also very hot! Getting the heat out of the rotors is always a good idea and drilled/slotted rotors always help. Most performance cars have them standard. My 2012 300 SRT had slotted from the factory.
What is the stopping distance of your 300 SRT? In a road test it took 120'. 300 SRT Stopping
The XJR does it in 99'. 21' difference for a 60-0 stop is HUGE!
While that is a pretty cool car it has smaller brakes? 14.2" front and 13.8" rear.
The XJR has 15" fronts and 14.8" rears.
The XJR is just so quiet and smooth it is very deceiving in it's capabilities.
They seem to be about equal in weight.
300 SRT = 4365 lbs
XJR = 4365 lbs
So they are not even in the same league stock.
.
.
.
They are kind of funny looking compared to the size of the Jag rotors. Mopar does most of their heavy braking with the transmission at least in the SRT line. It always had a hard downshift to help out.
Thought I'd past this review I did after going to both ofThe Jaguar Performance Driving academy sessions in in the fall of 2013. In those days when you purchased a new SuperSport or an new "R" series you were invited to one free day and if you wanted a second day you paid for it. I did both days in Las Vegas at the speedway there. It was four areas 1,.strait 180 turn like a flat sided oval, 2, a gymkhana course, a figure 8 drifting course, and 4, a closed 2+ mile race course. We had instructors like Roberto Guerrero and Davy Jones. Here it is and please not the part about the braking in the second paragraph. I've also added a link from the F-Type forum where 'shift" go more into depth on his experience.
Just returned from the Jaguar Performance Driving Academy where I got to drive 2014 XFRs, XKRs and the new XJR, what a blast. In follow me runs in the advanced Class I was able to drive the 2014 XJR on a road course at Las Vegas motor speedway. The cat was amazingly stable and fast. I had no problem staying close to the lead instructors one in a 2014 XFR and another in a 2014 XKR. Down the straights I would be closing on them at a good rate of speed and through the corners stayed right with them. The car handled like it was on rails and could out accelerate any of the other cars. As an owner of a 2013 XJ SuperSport I was interested how the “big” sedan would handle itself on a road course. The XJ is as fast as, if not faster, than most high performance luxury sedans out there. Oh and did I mention this XJR was a XJR-L.
First let me say that from a handling standpoint there is no wishy-washy transition feeling in the suspension or steering input from straight ahead to turn-in and throughout turns. On exiting a turn you roll into the accelerator and you start to accelerate better than the other “R”s. The XJR definitely has a better feel than the XKR and is easily a match to the XFR, but definitely more luxurious without excessive softness or vagueness. On braking you could climb on the binders as hard as needed to almost activating ABS and you just hauled the beast down as well as any sports car. The steering rack is more solidly mounted and results in slightly more immediate response to inputs. Compared to my SuperSport I would say the difference is like XKR to XKR-S and I attribute 50% of the handling performance to the larger tires and that they were Pirelli P Zeros that are 265s up front and 295s in the rear as opposed to my Dunlap’s that are 245 up front and 275s in the rear. Lastly we had no R-Ss or F Types to drive at this event, but they promised the next event that will be a Homestead in Florida will have F Types available to drive and I hope to be going there too, but didn't.
Interesting to note: most performance cars either come with or have a performance package which includes some variant of drilled, slotted or drilled/slotted rotors. Luxury performance cars are included, Mercedes E63, BMW M6, even some of the Lexus F cars have drilled. I'm not trying to compare these cars to the XJR at all. Clearly the rotors on it are much larger and so better braking. The question I was trying to pose, could it be even better?
I really think if Jaguar thought it would help they would have, at least, made it a part of the Speed Package that brought the max speed up to 174mph the same as is the XJRs. At present the only drilled rotors on Jaguars are for the carbon braking available hot "R" and on the SVOs. But they do look cool. Had them on my 2001 XJR "R Performance" Jag that was Brembo equipped. I strayed on the pads that were very dusty to ceramics and cut the dust and the braking performance. Just my experience. BTW have had my SuperSport up to 165mph on 1/2 mile speed runs and never ran out of brakes on hard braking.
My 2009 XKR Portfolio convertible is equipped with the optional Alcon Performance Brake Package. Fronts have 6-piston red calipers and 400mm rotors with crescent-shaped grooves and rears have 4-piston red calipers and 350mm rotors with crescent-shaped grooves. At that time, the largest brakes ever fitted to a production Jaguar.
Front:
I dont have an R, just a lowly 5.0 SC, but i can definitely see areas for braking improvement. Are the rotors and calipers on the R bigger? Or just different?
I dont have an R, just a lowly 5.0 SC, but i can definitely see areas for braking improvement. Are the rotors and calipers on the R bigger? Or just different?
It appears to be just a caliper color difference:
XJR
XJ
And the R1 site list the same rotors for both cars:
XJR Brake upgrade
