Hi
Some of you Might be wondering why i have gone for a jaguar v12 6.0 l in place of the 53 !!!
i have owned the car from 1990 it started life as my every day car but i was done so meany times speeding and then the head gasket went on the right bank
so time to change
As i had a House in the South of France so the car was used for travailing to it fast
When the Heads where off i put Hallbay stage 2 cams in. Big Radiator and Kenlow fans this made it happy in the mid range and Cool
but as you all know the rear brakes are inboard and get hot which is then brake fade and front disc's end up getting Hot
so in went a back end out of w 94 with outboard Disc's and a better diff
this made the car go like hell but lost the top end so a rethink so as the gm 4L80E with a optishift ECU this didn't go in as the gear box bolt paten was different so it was put on hold and i had one Hell of a screamer as it runs 2 3/4 inch Exhaust pipes with back box only
then some body set fire to the car and damaged the front end
so all the front end has been rebuilt with new bushes New springs shocks and everything powder Coated in black engine bay repainted and every thing refurbish Cool Shield installed to the Bulkhead all Brake and fuel pipes covered in heat shield Exhaust Manifold have been wrapped for max heat extract from the engine bay i have put sound Deadening pads with Cool It on top New Up graded Rad New oil cooler fans Water Hose's every thing replaced and when finished the engine will look like a 5.3
The Engine will run a Emerald ecu K6 with 2 settings
some of you are most probably wondering why i am doing this to a very good 2 owner car !!
Well my cars are not Garage Queens and i do at least 20000. per Year in them a lot in Europe and need them reliable and finding out what is going on
so as the old Lucas stuff is out of date and drinks fuel like it has a tanker on tow
Also i wanted a car that if i brake down in France go to a Bosch parts department and get a replacement
It has 95 % Jaguar Parts 4% Bosch and 1 % other
If any Body has any input i am happy to listen

 

6.0 is much improved engine over the 5.3L, Ford made the changes that Jag couldn't afford at that time, today Jag has unlimited money( TATA).
I do agree with your modifications, altho, me being in USA, i did away with all the Lucas electrics that was reasonable, mostly under hood with GM DELCO plentiful and much lower costs, than Bosch, so far been 20yrs and no serious problems, but in the cockpit lousy Ignition switch, and light switches(have to jiggle),still Lucas!

 

Can we have some photos please, and some links to where the new kit came from? Sounds a great project.

(Ron, where did you get the idea that TATA have unlimited money from? This is 100% not true. Right now current Jaguar models are, in effect, Ford R&D models. Also the Land Rover business is an absolute cash machine. Jaguar, sadly, is not and Jaguar sales are poor to very poor. The new saloon model (which looks to me identical to the previously launched XF) will bomb as a sales success. The idea it can unseat BMW and Mercedes in Europe is laughable. TATA has not got unlimited funds and neither is its management going to pour Land Rover generated cash into Jaguar as they are doing now, indefinitely. Just wait and see).

Sad but true
Greg

 

Greg, i agree Jaguar is in a vulnabrle position,(TATA may pull the plug), only time will tell.

in the end,all things must pass, nothing lasts forever!

seems i read somewhere that TATA is the largest industial manufacturing company in the world,at this time.

 

This is After Sand Blasting





in Primer





in Paint





In Paint








Aii in Black





And Some More Black





Cool IT





The Best

 

The engine is one of the last with no Dissy do you Notice what is missing in the last Photo ?

 

Congratulations, wonderful thorough, top class job. What dedication, too. Love the colour.

As for what's missing in the cam cover photo, you seem to have mislaid the engine!

Greg

 

HaHa Love that there isn't a cam censer and there of the 5.3 also the front of the the engine has 3 belts instead of the 1 belt on the 95 Engine 6.0l
this is the link for the Gear Box ECU
http://www.usshift.com/newname.shtml it came with all the plugs and is set up to run with flappy pedals and a sports mode
the Engine ECU is Home of the Emerald K6 aftermarket standalone ECU
i have decided to use them as AJ6 Engineering use them and the unit will come with a base map and then on the rolling road



And this is the 5.3 ond not 6.oL





Drivers Door bare metal and then primer

 

Good luck with the build. I am also doing a 5.3 to 6.0 swap in my 90 xjs. Working through the wiring now. I am wiring it as if it is a 94-96 6.0 xjs. As of right now I am going to build me a 6.0 engine harness from scratch as I have tried to source one for the last 3 years. If anyone has one let me know as I am really interested.

Let's see some engine pics

 

Hi 86jag
There are a some cars being broken on ebay see if you can get a loom from one of them
what ECU's are you using ?
i will put some Photos of the Engine when the Inlet Manifolds are on
I am getting the Gearbox Mountings and tunnel sorted but got way layed on the Near Side door which is also in primer after being taken back to bare metal
so this week will get the manifolds on

 

Well originally I was planning to wire up the car as a 94-96 6.0 but I have been unable to find the wire harnesses I need as the 94 xj12 harness is not going to be easy to use in the xjs as it is very different.

After just recently speaking with Roger Bywater of AJ6 Engineering the route I am planning to take is as follows. I am going to wire up the car using all the harnesses from the 90 XJS, have Roger reprogram the 90 5.3 ECU (16CU) for the 6.0 and then use the TCI EZ-TCU for the 4l80e transmission. Anybody with any advice please chime in. I know Baxter and XJSv12 have gone down this route. I believe Baxter is still using it but XJSv12 had rough gear changes and used the original TCU.

The main issue with swapping the 6.0 is the wiring. The mechanical side is pretty straight forward. The 94-96 XJ12 harness is one gigantic 50lb harness and then a harness on the engine that connects at the firewall. Which would result in a gigantic maze of removing the unneeded portions. The XJS 6.0 harness would be simpler but it is nearly unabtainable and you still would need to splice a bunch of wires. The 6.0 ECU has more outputs than the 5.3 some of which are for the transmission TCU and the 6.0 ECU can go into a limp mode which in a swap will be tougher to diagnose.

We probably need to start a 6.0 swap thread with the steps on how to perform it. Both mechanically and electrically.

 

sounds like you will be busy with the wiring!

i have heard that the TCI TCU is a great mod for the 4L80E, you can shift into any gear and hold it to the rpm you want up or down shifts, but when in first gear at full throttle, they auto shift to 2nd around 6500-6700 rpm on there on, course by then you well past the peak torque, i suppose so you dont over rev the engine!

i use the 700R4 4spd trans with a T/P cable works fine! 3.73 gear ratio rear drive, me about a final drive ratio of 2.60, in over drive. that figures about 200mph at 7000rpm,(or maybe not,LOL). not with my butt in the seat.

i read where TCI has a mod to intsall paddle shift levers, that could be an unusual mod!

 

EZY-TCU comes with manual shift ready to go by simply grounding the relevant wires, just need the switches/paddles, also has sport mode.
Out of the box it did shift hard but I understand that is to protect the box from excessive slippage. It was very easy to adjust via handheld unit. Live data is supplied and a few short road trips and adjustments have the system as refined as you would need, aggression levels can be changed for sport mode.
The one condition with the EZY-TCU is that it will only work in a Marelli ignition car. The system needs an engine speed reading and 12 cylinders is NOT supported. With the marelli system that engine speed feed is taken from one coil and 6 cylinders selected in the set-up.

 

That's interesting i have got the http://www.usshift.com/newname.shtml (optishift)
it came with a harnesses for the gearbox and software with a lead for the laptop this is a US company so might be healpfull and as the one Baxtor is saying with flapy pedals and sports mode so it looks like where on the same track
as for your Engine loom if your going Stand alone which i think your better off as it a lot easier to use than the jaguar one and you have the loom from the the 6.L

 

Hi Has any Body fitted a 6.0L air con pump to a 5.3 and used the existing 3 belt format ?
i was thinking of putting it where the alternator is and moving the alternator to the air pump bracket just me thinking !!!!!

 

That is a Bang up Idea!

 

Thanks there is a reason
if i can make a bracket up to take it i will have a BIG gap in front of the coil packs where a Supa charger !!!!
i think i can run the A/C Pump and Alternator of the V Belt and or use this belt for S/C or the old A/C belt Help Brain going funny

 

I think there were a couple of forum members did something similar in the past. It is also covered in Kirby palm's XJS book.
There is a belief that running both compressor and alternator from the same belt can lead to bearing failure in the alternator due to belt tension issues.

 

I went through a transmission with low transmission from TCI and connected EZ-TCU. What I got. Very good first gear. howl of the first gear, from the first to the second has a strong leap, whistling rubber, 6 seconds to hundred. Sorry for terrible English.

 

About alternator and a c pump. I will send a picture.