I had no idea the XKR 5.0 was this fast.
Veteran Member
Joined: Jun 2015
Posts: 3,005
Likes: 1,675
From: Sydney, Australia
Video of a stock 5.0 xkr vs 4.2 xkr, what a difference, havn't a clue what their saying.
Jaguar XKR 1,0 km : 4.2L vs 5.0L - YouTube
Jaguar XKR 1,0 km : 4.2L vs 5.0L - YouTube
Xkr - 5.0 (510hp) - 12.6 @ 115mph
Xkr-s 5.0 (550hp) - 12.0 @122mph
On average ever .1 or 1mph on your et should equate to 1 car length so no wonder the 5.0 pulls so hard against the 4.2
Upper pulls replacement
If the XKRS is a bit gaudy for your taste, for relatively little investment, you can do the performance upgrades with some tasteful body modifications and have the car you want. (I also preferred the stock body, but wanted and did some modifications) The 5.0L engine really adds a lot of oomph to what was already a good performing car. I've enjoyed taking mine to the track several times, and can't wait to go next weekend with the upper pulley replacement and flash tune.
Does the upper pully do that much for the xkr? How much horsepower does it add
Veteran Member
Joined: Apr 2011
Posts: 5,008
Likes: 2,623
From: Los Angeles
I have not done the tune yet, I have it, as the software for first one was not correct and I was sent a replacment, I just haven't had any time over the last few weeks to spend the time loading it. Depending upon which tuner company you use (ie; ETG, Eurocharged, Vmax) the claims are anywhere from 80-105hp gains over the stock 510hp. Some have suggested that tweaks in the exhaust system (such as the X-pipe of the XKRs) are necessary to extract the maximum gains. I hope to have some time this week, and then I'll report what I "feel." I have done just the pulley, and I'm not sure I can tell the difference.
Veteran Member
Joined: Jun 2015
Posts: 3,005
Likes: 1,675
From: Sydney, Australia
Tberg
For the tune to stick to a x-pipe is a necessity that is if you are loading the tune remotely.
However if it's a custom dyno tune no x-pipe is technically required however it's recommended due to the simultaneously firing of the left bank , plus it's good for a few extra hp & torque
For the tune to stick to a x-pipe is a necessity that is if you are loading the tune remotely.
However if it's a custom dyno tune no x-pipe is technically required however it's recommended due to the simultaneously firing of the left bank , plus it's good for a few extra hp & torque
Junior Member
Joined: Jan 2025
Posts: 3
Likes: 0
From: Layton, UT
I had no idea the 5.0 XKR was this quick and fast, just more stuff to add to my XKR obsession! I had the base 2007, 4.2 it was alright but sounded great. I had a chance to drive a 2014 XKR yesterday and was amazed. I found this video series with an XKR against some other cars, 997 turbo etc
1080p: Jaguar XKR 510 HP vs Mercedes SL600 Biturbo x 2 races - YouTube
Also the prices on the XKR-S are great buy for what was a $133k car, I like the seats, interior, big HP motors, but the rear valance and spoiler are a big gaudy and Japanese drift car looking, the front is also marginal, but in black it's not so noticable.
Anyway, too many choices, I have found some low to no mile XK's, XKR's and also XKR-S's that are such a good buy and value. On top of it, there is not a bad angle to the car lookswise! The M4 etc, has no front overhang and a huge overhang, and even the F-Type looks a bit odd at certain angles and looks like it has no rear end, but it's a great looking rear end. Actually EVERY car looks odd after looking at a Jag XK.
1080p: Jaguar XKR 510 HP vs Mercedes SL600 Biturbo x 2 races - YouTube
Also the prices on the XKR-S are great buy for what was a $133k car, I like the seats, interior, big HP motors, but the rear valance and spoiler are a big gaudy and Japanese drift car looking, the front is also marginal, but in black it's not so noticable.
Anyway, too many choices, I have found some low to no mile XK's, XKR's and also XKR-S's that are such a good buy and value. On top of it, there is not a bad angle to the car lookswise! The M4 etc, has no front overhang and a huge overhang, and even the F-Type looks a bit odd at certain angles and looks like it has no rear end, but it's a great looking rear end. Actually EVERY car looks odd after looking at a Jag XK.
Veteran Member
Joined: Apr 2013
Posts: 11,890
Likes: 6,401
From: Kaysville, Utah, US
I felt the same exact same way! Had a 2010 XK and was mad at myself for not getting the Big Boy. Have a 2015 XKR and after having nearly every high performance car I've ever wanted, most not last past a year before I got bored, this one I've had for 3yrs and it's not going anywhere, lol. If you think it's fast stock, do the smaller upper pulley change alone with a tune and you're basically at 600bhp. Will be adding the larger crank pulley and aircooler and it will be roughly 650bhp. No better looking car from literally every angle, until you get to hyper cars IMHO, and it doesn't get lost in a sea of corvettes, porches's, Chargers etc....JustSaying
Senior Member
Joined: Dec 2019
Posts: 522
Likes: 129
From: Durham, NC
The Jaguar XKR pretty much gaps everything and certain newer model cars like the 2020+ RS6,an XKR will go neck and neck with it if it can't completely gap it and won't lose unless you give up
Thread
Thread Starter
Forum
Replies
Last Post
u102768
XK / XKR ( X150 )
24
Feb 5, 2021 05:57 AM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)