XF and XFR ( X250 ) 2007 - 2015

Thinking about going SuperCharged!

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Old Feb 3, 2021 | 12:23 PM
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Default Thinking about going SuperCharged!

Does anyone know what goes into Super Charging a Jaguar XF 5.0 which is current N/A?

How much would need to be changed with the stock setup and engine components?

I'm kind of a gear head and I know you don't just strap on a supercharger and go! How similar is the 5.0 N/A stock engine setup in comparison to the SC or XFR?

They are all using similar parts to a certain degree I imagine. What are the notable differences to the heads, pistons, drivetrain, or rear differentials which should be considered?

I'm thinking about making a XFR Clone out of my XF. Let's call it a "poor mans XFR" Not really but kinda lol
 
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Old Feb 3, 2021 | 12:40 PM
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Let me save you the time, money and effort on this: This question gets asked in various forms on most car forums, and the answer is always the same - it's never, ever worth it.

It's almost always (with very few exceptions) a) cheaper b) easier to sell your car and (in this case) buy a supercharged one.

In the specific case of this engine, the pistons are different, the heads are different, the block is different (the supercharged engine has oil spray jets under the pistons etc).

I know it's never the answer that people on a car forum want to hear, because they're usually gear heads and have a personal attachment to their car, so can justify this with "better the devil you know" and all sorts of other logical fallacies. I've fallen for it myself before with different cars, but them's the facts. Sorry!
 

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Old Feb 3, 2021 | 12:48 PM
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This question has been asked so many times in this forum and always with the same response as above.
 
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Old Feb 3, 2021 | 01:54 PM
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I'd highly suggest listening to the advice from davetibbs. You can find plenty of high mileage supercharged 5.0 cars for cheap, it's better to start there and fix up those cars than to convert a NA 5.0 to a supercharged one. Not to mention all the other good bits you will miss out on from the supercharged cars; adaptive dampers, locking e-diff, large brakes, faster steering rack, better interior, etc.
 
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Old Feb 3, 2021 | 03:08 PM
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Agree with all the above!
Listen to davetibbs.
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Old Feb 4, 2021 | 01:33 AM
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I disagree. its not THAT hard. yes its quite a bit of work, but nothing to worry about. there tons of scraped 5.0sc , at least here. and parts pretty cheap. would not be so expensive to swap. here is local prices I have checked- gearbox with tc400, rear diff + halfshafts 300, engine parts 400-500, supercharer complete 500, radiators,hoses 250-300 so around 2.2.-2.5grands and your own labour+ programing. do not be scared by lazy forum members which paints wheels. just some money, good tools, some positive thinking and good sense of humor. I even think the last is more important than special tools, as there will be some times in proces when you will have suicidal thoughts. Positive thinking and sense of jumor prevent this. keep us informed on proces and good luck!
 
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Old Feb 4, 2021 | 10:35 AM
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I appreciate the feedback thanx!
 
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Old Feb 4, 2021 | 10:50 AM
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Originally Posted by elviukai
I disagree. its not THAT hard. yes its quite a bit of work, but nothing to worry about. there tons of scraped 5.0sc , at least here. and parts pretty cheap. would not be so expensive to swap. here is local prices I have checked- gearbox with tc400, rear diff + halfshafts 300, engine parts 400-500, supercharer complete 500, radiators,hoses 250-300 so around 2.2.-2.5grands and your own labour+ programing. do not be scared by lazy forum members which paints wheels. just some money, good tools, some positive thinking and good sense of humor. I even think the last is more important than special tools, as there will be some times in proces when you will have suicidal thoughts. Positive thinking and sense of jumor prevent this. keep us informed on proces and good luck!
With all due respect - I've done quite a bit more to my car and engine than just paint the wheels, and I hardly think it's "lazy" to point out the facts around costs and effort - even if you're swapping the whole engine, which I'm not sure you're even recommending.

I don't know where you're based, but here in Cali (and across the US) your parts quotes are laughable. A S/C transmission for 400 what? Certainly not US Dollars. A rear diff (not including halfshafts) for 300? Have a quick search of parts costs here and see what I'm on about. What "engine parts" do you need to replace for 400-500? What about the different cylinder heads, and NA/SC block differences?

And even then, with the higher mileage 5.0 S/Cs kicking around, you still think it's worth going through the effort to swap all those parts into an NA car? No way. What about the brakes? The suspension? The "programming", which you conveniently glossed over, but actually is probably next-to impossible for most people to achieve or find someone that'll do it for them?

This is straight-up bad advice.
 

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Old Feb 4, 2021 | 10:57 AM
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Thanks a lot for the feedback! This is the exact mindset I have towards the project. I'm fully aware there are quite a few adjustments that need to be made but I'm optimistic and patient.

Specifics regarding the rear diff and drivetrain: The SC 5.0 & XFR have a different rear end & transmission? From what I've observed the XFR seems to have true positive traction in comparison to the stock XF. (I could be wrong here) Most of the torque on my base XF seems to go to the rear right passenger wheel when launching. I bet just the rear diff swap would make a huge difference for starters.

What about the heads, block, and pistons, do those need to be swapped also?

I've already found a Jaguar/Range Rover SuperCharger for around $900 USD. Granted that its in good condition I don't think the price point is too bad.

Does the radiator itself need to be swapped also? I know I have a lot of questions however, with great power will come great responsibility

Any insight is appreciated.



 
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Old Feb 4, 2021 | 10:59 AM
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This is the SuperCharger I found:

https://www.ebay.com/itm/2010-13-JAG...75.c101224.m-1
 
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Old Feb 5, 2021 | 10:05 AM
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Perhaps you should read some of davetibbs posts? He is being very humble as he is probably one of the most knowledgeable members we have EVER had! He has totally rebuilt a 5.0L SC which is just about impossible.
You are getting very bad advice from elviukai.

But do keep us informed it will be a fun project until you give up!!
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Old Feb 5, 2021 | 04:40 PM
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+1

I'd prefer not to read about a destroyed engine...
 
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Old Feb 5, 2021 | 05:03 PM
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Parts are cheap here i Europe. I bought 12 000miles complet supercharger with TBas in auction fo 400EUR. seller was noce ant throw new unused nose( a 450Eur value) so charger is -50eur. I can get whole engine with everything (including PCM, all wiring) except gearbox for 3000eur. But its just too easy. Nobody theses days want simple solutions, we want challenges. Thread author want challenges. We are here to encourage him. Lets do this.
 
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Old Feb 6, 2021 | 12:43 AM
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Originally Posted by elviukai
We are here to encourage him. Lets do this.
Bulls**t, I'm not here to do that at all. Maybe, in fact, I'm here to call out you blatantly misleading him about the viability or "ease" of converting his normally aspirated engine to a supercharged one simply by "swapping a few engine parts" here and there, when you clearly have no idea what you're talking about?

If you knew enough about what was required to undertake this, there's no way you'd be so enthusiastically encouraging people to do it (having never done it yourself), if nothing else it's just unethical.

I'd prefer to not see other people burn time and money following the wrong path after asking for advice on something. But since you seem intent on spreading flat-out misinformation about how "easy" and "cheap" it is to successfully convert a 5.0 NA engine to SC (having never done it yourself), I guess it falls to me to point out why you are so wrong.
  1. Let's start with the block. The SC engines have oil spray jets under the pistons, to help with cooling. The NA engines do not have these. I have a friend who was employed by Ford back in the day and he lead a project to save a penny on the cost of the radios. Car manufacturers do not fit anything they don't have to, and it's safe to assume that if Jaguar went to the effort of fitting these spray jets, they are needed. I notice you haven't recommended OP changes the block. How do you propose he achieves sufficient cooling of the pistons?
  2. The NA engine has a different piston to the SC engine. Are you proposing OP swaps all 8 pistons? How do you propose he covers this with your 400-500 "engine parts" cost?
  3. In fact, if I'm asking questions: Are the pistons the only thing he needs to change? Are the diameters of the gudeon pins the same on the two engines? Are the rods the same length? Is the stroke even the same? I actually don't know the answer to those questions, but my point is: neither do you.
  4. Then there's the heads - NA and SC engines have completely different heads, camshafts, cam sprockets, variable timing designs, and controls. What was your plan for these? I've been keeping an eye out for a while for a set of usable S/C heads so I can have them ported and swapped out. They are not cheap - your 400-500 "engine parts" quote might get a couple of camshafts, but that's about it. Oh yeah, and most heads for sale don't include the camshafts. Were you just going to leave the NA heads there? How well do you think the the SC engine management would deal with that?
  5. Used superchargers often don't come with chargecooler lids and inlet manifolds, and the one OP linked that did was $900, which by the way should give you an idea of how bad your cost estimates have been, at least for those of us living in the US.
  6. I could go on listing the differences between the NA and SC engines - including obvious but surprisingly expensive things like ECU and wiring looms, but to save boring anyone futher, let's just accept at this point that it is always going to be cheaper and way, way easeir to swap an entire engine rather than individual parts as you've recommended.
  7. So let's say OP buys a used SC engine here in the US - prices are dropping, but still much, much higher than the 3000 you quoted. He could just drop it in, but personally I think it'd be mad to do that without first replacing all the timing gear, given the problems with it, along with probably a new oil pump, along with front/rear crank seals. That's adding another grand to the rebuild cost easy. But let's say he does all this.
  8. How will he connect the chargecooler? He needs a new radiator (because it has an outlet for the chargecooler circuit), new chargecooler radiator, a new auxilliary radiator, and a bunch of new hoses. Even if you got all these parts used, the prices of these parts alone would be crazy, and personally I wouldn't fit a used radiator to these engines as they run hot as it is.
  9. The SC transmissions are different to NA, and expensive. The e-diff that goes in the rear is expensive. Were you proposing that OP also swaps the half-shafts for thicker SC ones, or just hope that they survive? What about the control unit? Is the wiring for the it there on OP's car, or will he have to add it?
  10. What about the brakes? The shocks? Just stick with the original ones and keep a "positive attitude" I guess? Sounds safe.
  11. Let's say he buys all these parts - and to be clear here, after swapping all these parts out he'd be out way, way more than the cost of just selling his car and buying a supercharged one, and all without getting a single drop of oil on him - how does he get the engine management, transmission control, and traction control (oh yeah, that goes in with the diff too) to work with it? No dealer will touch you - you might find an indy able to do it but I doubt it - this is not something that sane people do to their cars, so not a lot of call for people to know all the steps involved. So does he just get a dodgy copy of SDD, a chinese Mongoose clone and teach himself?
Stop trying to encourage people to waste time and money on an impossible task. You have no idea what you're talking about.
 
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Old Feb 6, 2021 | 01:27 AM
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Dave, the only seriuos note from my side were the parts prices here.,there is quite a few 5.0sc engines with a spun bearings, ALL engine without supercharger 600eur. then you just SIMPLY swap internals. I think you didnt carefully read what and HOW I advised to the OP. localy almost every day people ask me same questions about upgrades(and boy, there were in shock when i say that you cant plug unit and expect it to work, not speakering abouut questions"can i plug and play newers mltimedia from facelif and all functons will work?"
every other month I fix jag which is totaly dead when someone wanted to program CCF. Friend of mine (a professional-get them for repair where less expierenced repairers tried to fix) with few clusters , 5-9psc BCM,PCM units, clusters and KVM in the boot :-) I would never ever recomend anyone to do any upgrade on jag unless they have real VCM and knowlegde. just surprised that you dont understand that I was joking. and actualy swap engine internals is the easiest job, comparing to change/add modules ad program everything to be work like expected.

the real advice nr1 for OP would be buy wrecked 5.0sc(same model pre or facelift) , nearly disasemble all parts and change. basicaly everything need to be changed, except rear subframe with probebly can be modified (done that eralier to one of friends xf) it still wont be cheaper than buy sell and buy 5.0sc unless all this done because he wants challenges :-) I myself loves challenges and time to to time do crazy things. still doubtin if i want 5.0sc charger on 4.2 because so many things sould be modified( even head covers neet to be modified/rebuild and zillion CNC work) sorry for joking.

 
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Old Feb 6, 2021 | 01:48 AM
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Originally Posted by elviukai
Dave, the only seriuos note from my side were the parts prices here.,there is quite a few 5.0sc engines with a spun bearings, ALL engine without supercharger 600eur. then you just SIMPLY swap internals.
Wrong! You didn't read my post well enough, or you'd know why. You're deluded, and you're talking with an air of authority about something you've clearly never done. You just want to watch the spectacle of someone else attempt it, which to me is just plain disrespectful.

I'm done with this thread.

To the OP: I hope you believe me about the amount of work that would be needed, and how much it would cost you, because I don't think you would have asked if you didn't want the truth.. This guy is missing basic knowledge about differences between the two engines and the work needed for this to be successful and his "positive encouragement" is misleading and disingenuous.

Peace
 
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