ARRC Roll cages for Jaguars

Roll Cages for Jaguars
1960 semi-lightweight (i.e. not aluminium) E-type historic racer. Full rebuild by Pearsons Engineering with roll cage by ARRC.
This car is one of the original E-type racers driven by Bruce McLaren and David Hobbs.
Cage designed to fit within hardtop.
General lay out showing bolt-in door bars.
Front down tube is not an ideal shape but has to bend forward to allow driver access.

Mounts for back braces in boot.

Detail of mounts for main loop and front down tubes with door bars bolted in place.

Main loop with bracket for door bar and ARRC identification plate.

Seen in the collecting area for the Gentlemen Drivers race at the 2009 Silverstone Classic

Roll bar fitted permanently to Jaguar XK150. Designed to fit unobtrusively inside original hood and allow it to be put up and down easily. Built to FIA specification for limited competition use.

Seen in the collecting area for the Daily Express Trophy race for Production Jaguar Cars.

Cage under construction for a Lightweight E-type. Much of the middle and back of the car is aluminium so additional fabrication is necessary to ensure solid foundations for the cage.
This picture shows the general layout of the main loop with back braces and centre support.
This cage is made from 4130 chrome moly steel.

Drivers side door bar with misaligned tube to allow easier access.

Support for the main tube with sheet steel mount shaped to fit aluminium panels and spread the load.

Support panels prior to fitting tubes showing how they follow the original panels and are located at "strong points" in the shell.

On this mount for the back brace on the rear parcel shelf it was possible to make a matching support to fit inside the boot.
All mounting plates were finally bonded and riveted into place after the cage had been fully welded,

This E type cage is bolt-in rather than the welded cage at the top of the page. General layout is the same but back braces and diagonal go to parcel shelf rather than through it.

Mounts for main loop are welded to shaped plates which in turn are bolted to plates welded to the floor.

Supports under the parcel shelf transfer load to the chassis, once again plates are bolted to inserts added to the floor.

Jaguar C-type with bespoke cage. This car does not require a cage to compete however the driver wanted some more protection so this 3 point cage was developed to be unobtrusive but effective.

The seat back loop also has harness mounts built in.

1984-85 ETC style TWR Jaguar XJS. Cage designed to be a hybrid of mid 80s and current design standards.

Passenger side cage with door bar and door loop extending down into foot well. Additional bracing to link down tube and door bar still to be added.

Main loop with cross brace and two back braces through bulkhead into boot area.

Detail of door bar let into B pillar and box section built up in foot well.

Low drag E-type replica with hand made aluminium body on original E-type chassis. Requirement was for a bolt-in cage.

General view of main loop fitted tightly to compound curves of the roof.

Front tube down into base of a-pillar

Above and below rear parcel shelf allows cage rear stays to be tied down to chassis underneath the boot floor.

Detail of unfinished a-pillar mount. Large steel spreader plate is welded to the foot of the cage. Another aluminium plate, here covered in engineer's blue, is riveted into place on the body to further spread the load into the body structure.

Date 03-Dec-2009

Pictures by Andy and webmaster

	1960 semi-lightweight (i.e. not aluminium) E-type historic racer. Full rebuild by Pearsons Engineering with roll cage by ARRC. This car is one of the original E-type racers driven by Bruce McLaren and David Hobbs.
	Cage designed to fit within hardtop.
	General lay out showing bolt-in door bars. Front down tube is not an ideal shape but has to bend forward to allow driver access.
	Mounts for back braces in boot.
	Detail of mounts for main loop and front down tubes with door bars bolted in place.
	Main loop with bracket for door bar and ARRC identification plate.
	Seen in the collecting area for the Gentlemen Drivers race at the 2009 Silverstone Classic
	Roll bar fitted permanently to Jaguar XK150. Designed to fit unobtrusively inside original hood and allow it to be put up and down easily. Built to FIA specification for limited competition use.
	Seen in the collecting area for the Daily Express Trophy race for Production Jaguar Cars.
	Cage under construction for a Lightweight E-type. Much of the middle and back of the car is aluminium so additional fabrication is necessary to ensure solid foundations for the cage. This picture shows the general layout of the main loop with back braces and centre support. This cage is made from 4130 chrome moly steel.
	Drivers side door bar with misaligned tube to allow easier access.
	Support for the main tube with sheet steel mount shaped to fit aluminium panels and spread the load.
	Support panels prior to fitting tubes showing how they follow the original panels and are located at "strong points" in the shell.
	On this mount for the back brace on the rear parcel shelf it was possible to make a matching support to fit inside the boot. All mounting plates were finally bonded and riveted into place after the cage had been fully welded,
	This E type cage is bolt-in rather than the welded cage at the top of the page. General layout is the same but back braces and diagonal go to parcel shelf rather than through it.
	Mounts for main loop are welded to shaped plates which in turn are bolted to plates welded to the floor.
	Supports under the parcel shelf transfer load to the chassis, once again plates are bolted to inserts added to the floor.
	Jaguar C-type with bespoke cage. This car does not require a cage to compete however the driver wanted some more protection so this 3 point cage was developed to be unobtrusive but effective.
	The seat back loop also has harness mounts built in.
	1984-85 ETC style TWR Jaguar XJS. Cage designed to be a hybrid of mid 80s and current design standards.
	Passenger side cage with door bar and door loop extending down into foot well. Additional bracing to link down tube and door bar still to be added.
	Main loop with cross brace and two back braces through bulkhead into boot area.
	Detail of door bar let into B pillar and box section built up in foot well.
	Low drag E-type replica with hand made aluminium body on original E-type chassis. Requirement was for a bolt-in cage.
	General view of main loop fitted tightly to compound curves of the roof.
	Front tube down into base of a-pillar
	Above and below rear parcel shelf allows cage rear stays to be tied down to chassis underneath the boot floor.
	Detail of unfinished a-pillar mount. Large steel spreader plate is welded to the foot of the cage. Another aluminium plate, here covered in engineer's blue, is riveted into place on the body to further spread the load into the body structure.