It arrived in great shape. I wish that they had not strapped steel directly against the engine parts, but it appears that there is no major marring. The engine looks spectacular like a 42,000 mile engine should. I felt like I was looking at a work of art. =)

The engine is at Falconworks where Jaguars of every kind are right at home. The engine and supercharger install will begin in approximately 2 weeks.

 

It's a 4.0 or 4.2?

Gonna be a long 2 weeks...

 

That's a 4.2 s/c.

 

Are you thinking to put the whole 4.2 in and update all the electronics to match or use the short block in conjunction with the top end of your current 4.0?

 

We'll be keeping the factory electronics and swap a few parts over. There is also a new Kenne Bell Boost-a-pump and Kinsler fuel pressure regulator that will be installed along with the supercharger kit.

It is a 2003 4.2 engine with no variable valve train, so we won't need to do the camshaft swap. The car is currently utilizing its stock 4.0 supercharged engine.

I opted for AVos' Stage II kit with the 90 mm throttle body that has its own electronics modifications.

This kitty is going to have some claws.

 

Nice!

 

I wish you the best of luck with your project. There is only one thing I need to tell you (having installed the kit myself) follow his instructions to the letter & you will be fine. If you have any questions he will always be there to help you. If the tine difference is an issue contacting him please feel free to contact me if you like. If you want my contact info send me a PM. I also don't envy you right no as the anticipation much be killing you. The finnished product will give you a brand new car.

 

Jeff, well bough, I can't wait to see the finished project

 

Is it necessary for you to use the 90 mm MAF? Are there any hard core mods prior to the larger MAF sensor. Wondering myself wether to use the 90 mm MAF.

 

It isn't strictly necessary to use the larger TB, even with the twin screw setup. What you might run into though, is that if you significantly increase the volume of air being moved, that you may still need a recalibrated MAF sensor.

Since you can't just drop the existing MAF into a larger tube you *could* consider that it is a required mod for doing the larger TB, since the stock tube size will artificially restrict the flow to the much larger TB. Likewise, the larger MAF doesn't benefit you as much when you have a restrictive TB, but you could add it independently.

 

That's a nice offer. If we get stuck we might give you a ring. AVos has an updated installation manual that will come in handy.

I will be using the 90 mm MAF and 3.5 inch intake exactly like what AVos has prescribed. I am definitely going to have the instructions followed to the letter.

 

Hey Jeff!
Fantastic news. These next two weeks waiting are going to be real tough for you (and for us). If you just follow Avos's advice it will all work beautifully. You do have the best setup. The 4.2 engine is just marvelous.
I'm just back from Africa and back on the internet planet so I'm catching up with whats happening.
I've also just driven a magical 800 kilometers back from Spain to France. What a drive. Empty autoroutes and great winter weather. You are going to love your car.
The lazy torque is amazing. Driving at nearly legal French speeds is not even using half of the RPM or the power available. The smooth power delivery does make it difficult to keep within reasonable speeds. The toll stop take offs, even using half revs, still makes the acceleration a very short couple of seconds. I'm finding it difficult to find a safe place to play. I think maybe a track day is calling.
Which diff have you opted for? Get the best you can.
Best of luck and keep the posts coming.
We are all with you.
Colin.

 

I don't have the funds for the new differential, yet. That will be done by Spring, though. Until then, I will have a one-wheeled wonder, capable of spinning any tire to complete baldness withing 10 miles of driving. Haaaah!

 

Jeff, take it the track. A 2000 4.0 XJR with just an intake, exhaust, stock diff. and gears, and Avos TS, runs 11.89 in the 1/4. Bet your TS 4.0 XKR will do a 11.89 as is. The S-Type forum recently purchased a test mule differential and sent it to Drive Train Specialists (Michigan) for a LSD conversion. Call and ask them for the same? What a blessing a LSD would do for us.

 

Do you know his 60ft, end speed or tire type?

 

I believe the owner (2000 XJR 4.0 w/Avos's twin screw) mentioned he ran slicks. Even then, the car would likely do a low 12 sec. 1/4. A LSD would likely help with 1/2 second due to an awesome launch.

 

The 42,000 mile 4.2 XKR engine has been leak down and compression tested, passing with flying colors. The factory supercharger has been removed and is in great condition. The 2003 wiring harness seems to be in perfect condition as well with no noticeable breaks or chafing. We'll be using the factory 2000 wiring harness. The stock throttle body seems to be in good condition and the engine was run with it in place prior to my purchase of the engine. We'll be using AVos' custom made 90mm throttle body (this is the Stage II supercharger kit).

The guys at Falconworks (Jaguar technicians) got a look at the supercharger kit for the first time today and were blown away by how big the intake and throttle body are compared to stock (intake seemingly about 10 times bigger by eye). The look on the tech shop owner's face (Alan) said it all, eyes wide open with mouth hanging open, along with, "Where's the weak spot?" I told him about AVos' success with using his Jaguar XKR as a daily driver and I jokingly said that perhaps I would be the one to make the motor go POOF. =)

More later.



(Stock supercharger in bag on floor next to engine)


(2003 wiring harness in good shape)

 

Having just started the same project this last weekend I can say that doing this surgery on an engine stand rather than in the car is going to be WAY easier.

I couldn't resist taking a pic of the new and the old supercharger sitting next to each other on the bench. The KB is just a wee bit bigger...

 

ccfulton:

Please post here as much as you care to. It's all about showing the progression of installation, etc., for the others to see.

Congratulations on getting started with your own installation!

 

The supercharger has been fitted and cuts made to the intercooler connectors. They will be repositioned and welded back on.

More later. =)



Inside supercharger: