Hey everyone,
I am new to the XJS section. I was just wondering if the 1993 XJR-S(Jag sport 6.0L) v12 is different that normal later Jaguar 6.0L V12 Jag motor. Also what did the XJR-S have different than a normal XJS with the v12 besides the engine? Did it have different suspension(lower, bigger roll bars)?
Thanks,
Mike

 

There are a lot of differences with the engines and the whole car for that matter. The biggest difference is that the engine management/computer is Zytec for R-S vs Marelli for the later 6.0. This means lots of the electrical bits under the hood are slightly different. The R-S has 338 hp and the later 6.0 has 318hp. The R-S has the same 3 speed Turbo 400 as the older 5.3 cars, while the later 6.0 has a 4 speed GM 4L80E electronic transmission. See the Jag-lovers.org webste XJR-S Engine Pictures for more specific details.

The rest of the car had a body kit which consisted of front bumper, rear bumper, side skirts, and a spoiler. The supension was stiffer in the front and the rear, with front and rear anti-role bars. Had firmer shocks, quicker steering rack. The R-S also is a much rarer car, only 50 in the states for 93 if I remember correctly. The car also has special JaguarSport badging in the interior, engine, and exterior.

 

Thanks for the reply. I was wondering if you know about reliability between the two engines?

 

If the ZYTEC FI system goes wrong, it is NLA and fantastically difficult to fix, with very little knowledge about it out there. ZYTEC is/was a racing car supplier, and AFAIK no longer support the system in the XJRS.

But I also believe that not all cars labelled XJRS from the factory are in fact ZYTEC FI cars, so look to see if it really is one of them.

Greg

 

Greg pretty much said it right. The parts for the xjr-s are much more difficult to find and desirable so they can be quite expensive. Usually you would have to purchase them from a supplier in the UK as there are more there. The pre 93 xjr-s were not originally imported into the United States, so most will be normal cars with the body kit and wing added.

 

Seems to be a nice example of one for sale in Manchester, NH. I just came across it on Craigslist.

 

That is a beauty..... 1993 Jaguar XJR-S Convertible - One of 100 in the USA 93 Jag XJS

Price wise I guess you have to look at the additional premium you are paying for the R-S bit rather than looking at the actual sticker price. The condition of this car looks to be very good to excellent. If you were trying to buy a 6.0 V12 conv. in that condition you'd be paying probably over 10k, so let' say you get the guy down to $16k for this one (maybe) then that's $6K R-S tax.

I am so glad I live nowhere near New Hampshire otherwise this could be too tempting !!

 

by that XJR, but instead bought the blue XJS V12 from the same guy in NH, two weeks ago. You can still see pics on his site. Can't be more pleased with the transaction and my new car. The best way to describe the ride is effortless. Anyway if someone is considering, I had a positive experience from this dealer. Apparently both cars were on consignment from a collector.

 

There's a gentlemen just down the street from me with a 94, 6.0 convertible for sale and it looks the same wheel and body wise...60+ on the ODO and AJ6 Engineering badges under the bonnet, he's very "in the dark" about the car (bought it on a whim a couple of years ago) and wants 10K for it..any way to tell if it's an XJR-S? I guess it would have that badging (XJR-S) vice the XJS V-12 (that's what's on it.)

 

One way to tell is by looking for the numbered plate installed one each car produced. From the looks of the photo of the car that's for sale in Manchester, you'll find that plate just above the gear shift.
For a regular '94 6L, 10k might be a bit on the high side.

 

It would be a "normal" XJS, as the 93 model year was the last year for the XJR-S.

 

I am the owner of that car and it is still for sale. It is number 82.

 

Is it a coupe?

 

What about power?
makes it sense to change to zytec?
I have one

 

Would be much easier to go MegaSquirt. and have tunability