Has anyone done any modifications to their XFRS to get more power or performance? I was considering changing the super charger pully's and flashing the ECU. Very interested in what others have done to theirs. I have a 2014 Jaguar XFRS

 

1st welcome to the forum, nice to see a fellow Calgarian
2nd search is your friend, but I'll point you in the right direction. I have detailed my progress with my XFR and then XFR-S quite thoroughly, see below links, specific to my XFR-S:

• Start with this one
• Then move onto this

Feel free to shoot me a PM if you have any specific questions.

Post up some details on your XFR-S, color, etc...

 

Thanks, I did search (all be it not very hard) and the forums seemed to not really go anywhere. I'll check out what you posted! thanks!

 

I'm a little dubious about some of the power gains on dynos. I would rather see quarter mile comparos. I've been on chassis dynos before and tuned up only to slow down in the 1/4 mile....
All that said, yes there are several of RS owners who have posted some serious improvements. I would just scroll back through this specific forum and look at keywords such as RS in the title...

 

That's a good point. I ran 12.5 on a quarter mile in Calgary, bone stock. Baby seat in the back. H. Jones who's is tuned to just under 660bhp (I think, he's posted above, and car is sick, check it out!) said he ran 11.99. He lives in Calgary as well so I think we're gonna plan a trip to a strip and race them. See how they compare. Should be interesting!

 

I’m ~590HP to the wheels, which works to around 660 to 670hp at the crank.

I ran a 11.95 @ 119.65

Thats a big difference on a 1/4 mile time to 12.5.

Different tracks will be tough to compare, heck same track on different days might effect your times.

We’ll setup a drag race day over the summer and get runs in the same day. Should be fun!!!

I’ll be aiming to do low 11.9 or possibly 11.8

 

That is a big difference. I just thought it would be more. Will be fun though!!