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XJR-S 6.0 V12 Technical Specs?


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Hi all...I am new to this forum, and the reason I joined is because I have an XK8...but in the past, I was a huge XJ-S fan....I have owned 5 in my time.....the first was a 1990 3.6 auto....the second was a 1986 5.3 HE V12 auto....the third was a 1980 Pre He V12 auto...the fourth was a 1986 3.6 manual cabriolet.....and the last one was a 1989 3.6 auto.....I  always hankered after a 6.0  V12 but never got round to buying one....now, the prices are ridiculous....anyway, the reason for my post is because I am after some clarification.....

 

I want to know the technical specification ( engine/suspension/brakes/gear box/exhaust ) of the following cars:

1. 1988 XJR-S Le Mans Celebration, 5.3 V12 

2. 1988-1989 XJR-S 5.3 V12 ( non Le Mans Celebration )

3. 1989-1992 XJR-S 6.0 V12

 

There is much conflicting information on these cars...

 

..I bought my first Jaguar when  I was 21 ( im now 40 ) and I have a collection of around 400 classic car magazines which I always used as a reference ...I gained much of my knowledge of classic cars from them....In respect of the above cars, I was led to believe the following:

 

1. 1988 XJR-S Le Mans Celebration 5.3 V12 standard V12 5.3 engine ( approx 291 bhp ) ,standard 3 speed auto gearbox, uprated Bilstein gas shocks and stiffer/lower springs, bigger anti roll bars, quick steering rack, standard exhaust, standard brakes apart from vented discs at the front,. 0-60 approx 9 secs, top speed approx 140 mph.

2. 1988-1989 XJR-S 5.3 V12 ( non Le Mans Celebration ) same spec as Le Mans Celebration

3. 1988-1992 XJR-S 6.0 V12: uprated 6.0 V12 engine ( 318 bhp ) , faster shifting 3 speed auto gearbox, uprated Bilstein gas shocks and stiffer/lower springs, bigger anti roll bars, quick steering rack, I am unsure of the exhaust, standard brakes apart from vented discs at the front, 0-60 approx 7.2 secs, top speed approx 154 mph.

The confusion arises because I have seen some references to these cars with conflicting information. Wikipedia states that the 1988-1989 XJR-S 5.3 V12 produced 318 bhp. It further states that the 1989-1992 XJR-S 6.0 V12 produced 333 bhp, having a modified air intake system and special low loss dual exhaust, resulting in a top speed of 160 mph. There is a 1990 XJR-S 6.0 V12 for sale on eBay where the vendor states the same, 333 bhp and 0-60 in 6.5 secs. All XJR-S cars were produced by 'Jaguar Sport' which was a company owned 50% by Jaguar and 50% by TWR. They were NOT 'TWR' produced cars, which were heavily modified non-production cars, which may well have had power outputs in excess of the production 'XJR-S's'. As far as I know, only the 1992 onward facelift XJR-S produced 333 bhp and did 0-60 in approx 6.5 secs and had a top speed of approx 160 mph.

 

I did visit the Jaguar Daimler Heritage Trust website but they are unable/unwilling to give out information regarding technical specification.

I just wondered if anyone out there could shed some light on the issue...:)

Bill

 

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