1991 XJS 3.6 LITRE TO 4.0 LITRE SUPERCHARGED !

EXTREMELY LATE 1991 PRE FACELIFT CAR, STORED IN A HEATED WORKSHOP FOR 

MUCH OF ITS LIFE... AND THUS IT HAS AN EXCEPTIONAL AND RUST-FREE BODY 

AND CHASSIS.

VERY COMPREHENSIVE UPGRADE PACKAGE CURRENTLY PLANNED FOR THE VEHICLE !

THIS BRIEFLY COMPRISES OF A CHANGE FROM AUTO TO MANUAL, WHICH IN ITSELF

WILL INCLUDE A 6 PADDLE SUPER-CLUTCH FROM SIMPLY PERFORMANCE....

AN UPRATED AJ16 SUPERCHARGED ENGINE, WITH ADVANCED ECU AND UPRATED

SUPERCHARGER.....AN OUTBOARD DISC CONVERSION...UTILISING   UPRATED BRAKES,

AND TOP QULITY GAZ SHOCKS WITH H & R SPRINGS....THE STUNNING REGENCY RED

COACHWORK WILL BE EXTENDED TO INCLUDE A SPECIALLY RECREATED LISTER XJS

BODYKIT ...CUSTOM INTERIOR AND CUSTOM EXHAUST ETC WILL COMPLETE THE FINAL

TRANSFORMATION !

Click an image to enlarge

JULY 2026 (01/07/2026)

A ONE-OFF 'LISTER' SPECIAL BODY KIT WAS MADE BY SIMPLY PERFORMANCE FOR

THIS PROJECT. FRONT AND REAR BUMPERS, PLUS SIDE SKIRTS. THE LISTER KIT IS

VERY DISTINCTIVE AND STYLISH, OUR CUSTOMER HAS ALSO BOUGHT LISTER WHEELS

TO MATCH !

THE FIRST CHALLENGE WAS TO ACCOMODATE THE LARGE INTERCOOLER AT THE FRONT.

THIS HAS TO FIT BEHIND THE FRONT BUMPER, AND ALSO HAS TO AVOID FOULING ON

BUMPER MOUNTS, BONNET SUPPORTS, OLD OIL COOLER ETC. THEN THE BUMPER ITSELF

HAD TO BE CUT TO BE ABLE TO FIT AROUND THESE ITEMS, AND TO ALLOW ACCESS TO 

THE INTERCOOLER HOSES ETC . 

JULY 02 2026 (30/11/-0001)

NOW CUTTING AND SHAPING FRONT BUMPER TO SUIT. THE BUMPERS

ARE VERY THICK FIBREGLASS - AND QUITE BRITTLE - AND, BECAUSE THEY

WERE MADE FROM 1980'S LISTER ORIGINAL MOULDS , WHICH HAVE WARPED

OVER TIME - THESE WILL NEED A LOT OF 'FETTLING' TO FIT CORRECTLY !!  

MORE PHOTOS ADDED 23 04 26 (30/11/-0001)

UPRATED SPRINGS, NEW LISTER BODY KIT ETC.

AUGUST 14TH 2026 (30/11/-0001)

THE FRONT BUMPER NOW SHAPING UP QUITE WELL, WITH A NEW TOP SECTION

AND STANDARD XJS BODY MODS. A LOT OF WORK GOING INTO THIS BODY KIT.

THE 'LISTER' KIT IS AN EXCEPTIONAL DESIGN, AND MAKES THE CAR LOOK VERY

SHAPELY - PERHAPS MORE SO THAN ANY OTHER DESIGN OF MOULDING. THE SIDE

SILLS WERE ALSO VERY RELUCTTANT TO FIT, BUT MANAGED TO STRAIGHTEN THE

O/S ONE AFTER FITTING SOME BOTTOM SCREWS THEN HOLDING TOP EDGES IN

PLACE BEFORE FIXING. THE 'BLENDING' OF FIBREGLASS SECTIONS TO METAL NOW

WELL UNDERWAY, AND USING A VARIETY OF GLASSFIBRE, CARBON FIBRE AND METAL

FILLING PRODUCTS. FOR ADDED SUBTLETY, WE ARE MAKING LITTLE FAIRINGS AROUND 

BONNET HINGES ETC TO DISGUISE THESE.   

JULY 08 TH 2026 (30/11/-0001)

WE REMOVED FRONT SPRINGS, AND NOW HAVE SOME LOWERING ONES TO FIT 

BACK IN PLACE. THE LISTER MOULDS WERE VERY OLD, AND THE BUMPERS NEED

A LOT OF WORK TO MAKE ACCEPTABLE IN TERMS OF FIT AND FINISH. WE ARE 

MAKING GOOD PROGRESS ON THE REAR BUMPER. THE REAR BUMPER MOUNTS 

HAVE BEEN RE-FORMED, AND THE VALANCE RE-SHAPED TO ALLOW THE LISTER

MOULDS SOME CLEARANCE, AND THE NEW BUMPER TRIMMED AND FETTLED -IS

STARTING TO TAKE SHAPE NOW. THE FRONT BUMPER MOUNTS ALSO TRIMMED AND

THE BRACKETS REFORMED AND WELDED IN-SIIU.  

JULY 10TH (30/11/-0001)

FRONT AND BACK BUMPER MOUNTS AND FRONT BRACKETS REMADE AND REFITED !

AUGUST 7TH 2026 (30/11/-0001)

THE REAR BUMPER WAS REASONABLY STARIGHTFORWARD, BUT THE FRONT ON

HAS NEEDED QUITE A BIT OF 'FETTLING' TO MAKE IT FIT. HAVE MADE A NEW TOP

LIP, WE CUT A CENTRE SECTION OUT SO THE THE RETURNS FITTED A LOT MORE

FLUSHLY, THEN HAD TO MAKE TEMPORARY CLAMPS IN ORDER TO SECURE WHILE

FRESH GLASSFIBRE CURING. THEN BUILT UP WITH ADDITIONAL LAYERS OF GLASS

AND RESIN. 

17TH JULY 2026 (30/11/-0001)

AFTER CUTTING THE TOP SECTION OFF THE FRONT BUMPER, WE USED

IT AS A TEMPLATE TO MAKE A NEW TOP. WE MADE THIS BY LAYERING

MATTING AND RESIN , AND KEPT IT FLAT BY USING OUR SHEET OF PLY.

THE NEXT DECISION IN TERMS OF FRONT BUMPR IS HOW TO PROFILE

THE ENDS TO FIT THE STANDARD WING SHAPE.   

JULY 11 TH 2026 (30/11/-0001)

THE LISTER FIBREGLASS KIT WAS MADE FROM AN OLD MOULD, AND

QUITE MIS-SHAPED AS A CONSEQUENCE, AND VERY THICK IN BUILD. 

GOOD FOR DURABILITY , BUT ALSO VERY BRITTLE. WE HAVE SCREWED

THE TOP EDGE TO A SHEET OF PLY TO TRY TO STRAIGHTEN IT, BUT THE

IMPROVEMENT WAS LIMITED. NOW DECIDED TO REFORM THE TOP EDGE 

TO HELP STRAIGHTEN OUT THE OVERALL SHAPE.  

APRIL 2026 (30/11/-0001)

THE GETRAG GEARBOX HAS BEEN INSTALLED, ALONG WITH TTV 6 PADDLE

CLUTCH. GEARBOX MOUNT REBUILT AND FITTTED. ALSO ATTACHING PHOTOS

OF SOME OF THE EXISTING PARTS ON THE CAR, PLUS A FEW OF THE ADDITIONAL

UPGRADES AS MENTIONED ABOVE....