Only pic I have will get some more took was a photo shoot for a local car club .

 

Very nice , enjoy

 

I recently modded out my XKR...Got the tune and pulley done by ETG, got an X-pipe installed and K&N Air filters...Got my MAF sensors cleaned as well....one of them is new. According to ETG, I should be in the 620 hp neighborhood with 200 mph+ top speed. My car does feel faster, but it was already very fast. Do I wish I had done before and after dyno....sometimes. I wanted to mod my car so I did it. Would it make a difference if I found out I only have 575 HP or even 550? Probably not. I wouldn't be too happy with spending almost 3k for an extra 50 to 75 horses, but knowing me, I would have done it eventually anyway. My point is some folks may need to physically "see" what they've gained for their money, others will just be satisfied and let the "butt dyno" tell them if it was worth it. For me, it was worth it....I like the "feel."

 

Nice powerhouse!!!!!!!!!!

 

Update
Had it remapped all went well noticeable difference smooth power delivery etc .Dropped the car in to powerhouse Thursday had the bigger pulley upgrade fitted collected the car in the afternoon took my time on the journey back home 35 mile giving it time to adjust to the new air flow ( advice from powerhouse) Took the car out yesterday for the first time and EML light is on had it plugged in with the the company who mapped it cant remember the code it was a running lean code suspect air leak they think car is not in limp mode he reset it light went out .Did about 15 miles last night and back on it came .Any ideas guys ? going to have a look today to see if they is any pipes loose around the charger that may of got disturbed maybe ?

 

My choice would be to take it back as they broke or screwed up something. If you fool with it then you own it. I assume you called them and told them about the problem.

 

I'm also active on the XJ (X351) Forum. Yesterday, the owner of a 2012 XJL with the 5.0L Supercharged engine (sames as the 2010-up XKR) reported that his entire supercharger assembly was replaced under warranty, as it "was making a lot of noise chattering upon cold start". His car is nicely modded, including the exhaust (X-pipe, muffler delete, 200 cell cats) and ETG pulley + tune.

He stated: "I think running these pullies over worked the blower causing it to chatter." I think he's lucky that the dealer didn't void his warranty due to the aftermarket pulley.

Here's the thread: https://www.jaguarforums.com/forum/x...rranty-162396/

Anyone else have supercharger problems while running an aftermarket pulley and tune?

 

I'm pretty sure that you had a smaller pulley fitted to the supercharger, not a bigger one. A smaller pulley simply spins the supercharger faster at a given RPM, thereby producing more airflow and more power. A bigger supercharger pulley has the opposite effect.

 

yea , i think you mean the smaller pulley, as for the EML on i would say they have it tuned to high, i got mine remapped twice. First time no problem , then i decided to see could i get a bit extra. The guy added the software but the car gave the EML after a while driving so went back to the first update with no problems. Black code remapping who did mine gave me the option of a total refund after a few weeks if i wasn't happy with it, who did your remap.

New Home - Black-Code: Vehicle Re-mapping Specialists

 

I got the bigger pulley upgrade on my XKR as well...

They sell two pulleys, a small one and a very small one. I bought the bigger one.

 

Next thing for me is to have the supercharger ported. I think there are more gains there.

 

All sorted undid the four screws engine cover off the vacuum pipe near the charger I followed along and one that goes in to inlet manifold was just dangling down pushed it back in to the pipe took it for a drive and the light went out after a few miles . Its now running perfect again with huge smiles per miles a well worthy upgrade .

 

Would you mind explaining what having the "supercharger ported" means? I've never heard of that.

 

An S-Type owner had it done and regretted the experience. Thread will be a while ago in the S-Type forum.

 

I'll check that out..thx

 

Because the parts of an intake system and the heads are usually cast there is a rough finish on the final product. So whether it is steel or aluminium there will be some restrictions due to the finish. Usually porting does a few things like matching the mounting flanges so they are the same size and also enlarging them to increase volume. Also you grind the inside surfaces to make them smooth so the airflow is unrestricted. The net is larger area and smoother aif flow as the engine is just a big air pump. More air in mixed with more fuel is more power. This is the simple answer but if you look on the net you'll find a lot of info on it.

 

Yep the first performance upgrade that one should do is at least get the HP your car came with, cleaning and polishing the entire intake will restore power and then some. Also prevent future fouling.

 

https://www.fordmuscle.com/archives/...BlowerPorting/

 

I have a couple of quick questions for you guys....

- Do you think its worth it?
- Is there a huge risk of damage to the car or is this a relatively simple mod?
- Has anyone done this to one of our cars?

Ok, 3 questions....:-)