Can someone please explain the difference in layouts between the two models I know they use the same chargers but XKR has a different intake pipe route (twin ) and the S type single across the top. Also the S type has a lower body in the center where the charger top is by the look of it.


S type r- with central intake pipe above SC


XKR- with side intake pipe as it won't fit over the charger

 

I don't believe they're the same. But let others chime in.

 

I would think for hood clearance but I could be mistaken. I know the xkrs have the extreme slope

 

While they are both Eaton M112's they are different generations of the M112. The STR you show is a Gen V M112. The XKR is a 4.0L engine and uses a Gen IV M112. If you check the 4.2L XKR it will be a Gen V.

See chart below:


.
.
.

 

If some one has an XKR supercharger they can post photos of to compare, I have a spare STR Eaton M-112 that I can take pictures of for you.

What exactly are you trying to accomplish? Just replace a messed up supercharger? Or something custom?

 

Some good info coming here thanks,

I have a 03 STR engine which I am using in a project and exploring what options I have with the intake route.
I like the look of the XKR setup better than the S type but if I need to swap/purchase more parts to achieve this then it maybe a non starter.

The STR intake pipe has t sections off it for which I can only presume are to reduce intake noise which isnt going to be an issue for me. If i use the top metal part attached to the throttle body then getting rid of the next plastic pipe with the T's will be a problem as this intake is Oval shape rather than round...

 

I too feel the XKR setup looks more elegant under hood, it almost looks like a work of art. I would LOVE to have setup an XKR with all the supercharger bits powder coated ect.

I doubt the XKR parts will fit the STR body, it is VERY tight at the throttle body area where the intake tube connects, and I think that's why the STR setup has the intake pipe running down the center between the intercoolers.

Several people on here have make steel intake tubes that git rid of all the T-sections in the intake snorkel.

 

You mean like this?


.
.
.

 

Or this?

 

Many of us STR owners swapped in Mina Gallery intakes (delete stock airbox replaced by 3.5" tube with open air cone filter that has a heatshield preventing underhood heat from reaching air filter),.and replaced the stock air intake elbow with a 3.5" powdercoated aluminum tube, for a 24+ rwhp gain.

 

That sounds a plan could you put up some details or a link please?


Those pictures are just teasing me

 

Jaguar S-Type R Performance Intake Kit for Jaguar S-Type / R

You could take the plastic covers off and paint the charge coolers in a similar way. The layout is a little different but yours still have the embossed lettering and all that.

 

Hi,
Does anyone have further knowledge are the XKR gen V and S Type R gen V eatons the same and really changeable between ? My fiend has a gen V eaton removed from XKR 4.2 MY 2004 and offered it to me (only 20 000miles). If the superchargers are the same will buy it but dont really know if they match.
Thank you !

 

It's defiantly to do with space ,the xk bonnet is so mutch lower at the front comaired
To the s type , but inherantly there is less
Restriction between the chargecoolers and the supercharger joints on the 4.2 xkr.
Hence were thay get there extra 20hp over the 4.2 str according to what I have read.
Also better flow at the right angle neak of the throttle body intake pipe (xkr) , however the
Str pipe can be ported for better flow at the t/body too!
Thay are the same SC's apart from the top plate that bolts to the chargecoolers!
This is my str intake noticeable gains from that tube but no cold air box!yet


I've got some snap shots of the mina str cold box will post once uploaded

 

The superchargers themselves are the same unit.

4.2L XKR & 4.2L STR = AJ89855, also used on the XF SV8, and X350 XJ

The chargecoolers are different, but the blower is the same.

 

Thank you. Will buy one as a spare unit and it is from 2006 XJR. Nothing wrong with mine but have this low mile unit for cheap and it is my habit to have spares as vital parts for future needs.

Regards