Hi there. Has anybody attempted to swap a supercharged AJ16 from a XJR into a XJ6? Would the gearbox need to be transplanted also?

I have decided to restore a family owned XJ6 due to sentimental value but I do want to explore converting it to a XJR spec if at all possible. Please do not suggest that I simply buy a XJR as I have reason to retain the current body.

Thanks all!

 

Just to be clear. I am simply asking if it is reasonably possible.

Kopi

 

you could phone the guys at Beacham Jaguar - they put XJR engines in E-types, Mark IIs, and possibly the old XJ saloons or an XJC..

 

Yes, different gearbox and gearbox mounting, gearbox electricals, driveshaft, engine electricals, engine cooling system, mufflers, springs.....the list goes on and on

With enough time and effort I'd consider it reasonably possible IF I had a donor XJR alongside so that each and every part needed would be right at hand.

Cheers
DD

 

Cheers guys. Good to know.

Has anybody done it though? (I don't suppose there's much reason to). Still curious to hear from someone who has.

 

I have heard from various people that it has been done but it is a big job and most people get random electrical gremlins after the conversion.

Engine, Transmission, ECU/Transmission ECU, exhaust system (my XJ6 has the 4 catalytic converters and my XJR only has the 2 downpipe cats), traction control unit(?), radiator, intercooler and differential.
Those are just some of the basic things that pop into my head that I think definitely need to be moved over.

After doing some basic research about this same topic, I came to the conclusion that once x300 XJ6's are built as an XJ6 it was meant to stay an XJ6. But the weird thing is it seems like most people have better luck converting older Jaguars (E type, XJS, series III's) maybe because less electricals? Not sure but it seems to be that reason.

 

My recomendation is, forget it.

 

Kopi,
I assume that when you wrote XJ6 that you mean an X800. If so, then the conversion is possible if you change enough parts. Don't forget the twin fuel pumps in the tank, along with all the other parts Doug listed.

 

Quick sidebar/thread-hijack: What would be the symptoms of either of the twin fuel pumps failing? I assume (perhaps incorrectly) that the XJR would run normal with either, or at least the "first stage" pump running. If that is true, would it be obvious (e.g. run poorly, or very poor accel) or throw a code if the "second stage" pump had a failure?


I don't suspect this issue with mine BTW, but am just curious.

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The primary pump runs continuously. The secondary pump only runs above 4000rpm. After 20 years I can't remember how, or indeed if, the EMS can detect a failure of the secondary pump.

 

Hi guys thanks for the info. XJRengineer i actually have a 1995 XJ6. So I'm asking if a X306 engine can be ported into a X300 chassis. I should've mentioned this on the outset i guess. I am not sure what an X800 is.

 

Thanks Andy, one last quick question: Would one "notice" (seat of the pants) if this secondary pump wasn't working to spec or a complete failure?


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