Bentley Turbo R
Image courtesy Great Cars
All alloy V8, conventional configuration.
Bore x stroke 104.14 x 99.06 mm (4.1 x 3.9 in), 6,750cc.
Lucas electronic ignition with Solex 4A1 4-barrel downdraught carburettor
Bosch MK-Motronic fuel injection (to 1994)
Zytek EMS3 engine management system (1995)
Garrett AiResearch turbocharger type TO4B
Gearbox - 3 speed auto to 1991, 4 speed auto 1992 on.
Brakes - 4 wheel discs, ALB from 1986.
Wheelbase: 3,061 mm (120.5 in) Long wheelbase 3,161 mm (124.5 in).
Tyres: 275/55VR15 on 1985 model - later models had 255/65VR16
(1993) and 255/55WR17 (1994 on).
Performance: max 220 kph ('85), 235kph ('88), 249 kph (1995) [135mph to
Production 1985 - 1995
4653 Bentley Turbo R
1211 Bentley Turbo R long wheelbase
The following is based on the factory sales brochure circa 1995:
The ultimate sporting high performance saloon, with luxurious accommodation
for four adults and luggage. A 0-60mph acceleration time of under six seconds
and maximum speed of 150mph is achieved with astonishing refinement and
comfort. The crisp, dramatic new lines of the exterior are complemented
by a redesigned interior with improved comfort and driver control, confirming
the Turbo R's stature as a unique driving experience.
Wrap-around and colour-matched bumpers with integral finisher lip. The
re-proportioned radiator shell, integral front airdam, new exterior mirror
system and spare wheel mounted within the luggage compartment all contribute
to the smooth, integrated exterior appearance.
Swept-through console with touchopening burr walnut veneer panels to reveal
the in-car entertainment system and smoker's accessories.
Automatic ride control provides computer control of the suspension dampers
to optimise ride comfort and handling.
Transmission shift energy management and adaptive shift control provide
computer control of the gearbox to produce smooth gear changes under all
Dynamic shift pattern (DSP) modifies the gear change points in 'normal'
mode according to driving style.
Zytek EMS3 engine management system provides high density 32x32 site bit-maps
for fuelling and ignition, enabling more accurate engine mapping, so providing
greater efficiency, power and almost instant throttle response.
CFC-free air conditioning system.
6.75 litre V8 engine with exhaust driven turbocharger and intercooler.
Digital boost control system.
7.5Jx17 aluminium alloy wheels fitted with directional 255/55WR17 tyres
Centre console-mounted gearshift with sport/standard gear change pattern
Four speed electronically controlled automatic gearbox with torque converter
Maximum power 286.1 kW (386 bhp) at 4000 rpm
Maximum torque 750 Nm (553lbft) between 2000 and 3450 rpm
Maximum speed 241 km/h (150 mph)
Acceleration (0-60 mph) under six seconds
European Union drive cycle
25.7 1/100 km (11.0 mpg)
11 mpg USl
Extra urban (Highway)
13.3 1/100 km (21.2 mpg)
16 mpg USl
17.8 1/100 km (15.9 mpg)
13 mpg US
Wheelbase 3016 mm (120.5 in)
Overall length 5294 mm (17ft 4.4 in)
Overall width (across mirrors) 2110 mm (6ft 11.1 in)
Overall height 1485 mm (4ft 10.5 in)
Turning circle (kerb to kerb) 12.16m (39ft 10.7 in)
Underside of the bodyshell is zinc-coated and undergoes a ten-stage metal
pre-treatment process prior to cathodic electro-priming. Multi-stage painting
process with the latest 'clear over base' paint technology.
Flexibilised polymer clearcoat lacquer applied to the front surfaces of
the motor car provides increased stone chip protection, yet is almost invisible
to the eye.
Elastomeric stone-chip protective coating is applied to the sill and wheel
arch areas prior to painting.
Four channel electronic anti-lock system and anti-dive geometry.
Full-sized driver and front seat passenger airbags.
Double anti-side intrusion beams to doors.
Dual level air conditioning designed to maintain driver alertness.
Orthopaedically designed seating system helps to reduce occupant stress
Careful attention to weight distribution under all loading cases, together
with full-length lever arm front suspension and semi-trailing arm rear
suspension with Panhard rod provide a safe and progressive handling characteristic
at all times.
Four door saloon with accommodation for up to five adults.
Tilt-adjustable steering wheel enables the ideal driving position to be
reached, improves instrument visibility and has 'easy entry-exit' feature.
Memory facility allows the positions of the seat, exterior mirrors and
steering wheel of four different drivers to be recalled.
Front passenger seat fitted with four memories for seat position.
Air conditioning outlets for rear seat passengers permit individual control
of the rear cabin environment.
Independently adjustable rear seats with opening centre box armrest on
the Turbo RL.
4x30 Watt tuner-cassette audio system, with 6 CD autochanger mounted in
centre console armrest, playing through a ten speaker system.
Remote control of incar entertainment system for rear seat passengers.
Full hide upholstery, Wilton carpet and lambswool rugs.
Burr walnut veneer with straight grained walnut cross-banding.
Two stage front seat heating with Bi-level lumbar support system.
Much of the information above is based on the factory brochure, as published
on the Australian RR Owners Club site. Modified for brevity and clarity.