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Diablo Roadster R
  
 
Last updated May 13, 2001


  
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1997 Diablo Roadster R
(1 Made For The USA)

The Roadster R was purpose built in 1997 to take part a new American Diablo Racing Series. Each handcrafted car received a special treatment from the beginning of their assembly:

  • Full roll cage with chassis stiffness equal to the SV-R Coupe.
  • Strengthening of 14 points of the chassis
  • General lightening at the assemhly stage
  • Pricing suspensions
  • Brembo racing brakes, four pistons calipers
  • 18 inch OZ rims
  • Central nut wheel hub
  • Engine cover with additional air intakes
  • Carbon rear extractor
  • Front lights replaced by NACA air intakes
  • Carbon rear wing
  • Quick Refuelling devices.
  • Lateral side skirts
  • Safety equipment
  • Shorter gear ratios
  • Electronic control adapted to the racing exhausts
  • Engine allowing a maximum power of 540 HP
  • Air jack lifting system
  • Plexiglass side windows
  • Racing seats and particulars
  • Front baffles designed in the wind tunnel for better ground effect and brake cooling.
After two racing seasons, the owners had the opportunity to have his car converted for Road use with European or American Standards, or to adapt it to enter National (IMSA) or international GT Championships.

The plan was to built as many as 36 for the racing series. Only 1 was ever built.


TECHNICAL SPECIFICATIONS
Lamborghini Diablo VT-R Roadster

ENGINE
TypeV12
Mid-longitudinal
Aluminum block
DOHC per bank
Rear Drive
Valves4 per cylinder
Timing System Control2 chains
Main Bearings7
IgnitionStatic Electronic Lamborghini LIE integrated with injection system
Fuel InjectionLamborghini LIE electronic injection "Speed Density" sequentially phased
LubricationDry sump
Cooling SystemPressurized at 1 bar
Capacity5,707cc
Bore/Stroke87mm x 80mm
Compression10:1
Max power540bhp @ 7,100rpm
Max torque61kgm at 5800 rpm

DRIVETRAIN
TransmissionFour wheel drive
GearboxLamborghini 5-speed + reverse manual all-synchromesh
ClutchDry single plate, hydraulically operated, 10" diameter
Gear Ratios
1st
2nd
3rd
4th
5th
Reverse		1:2.312 - 60.3 mph
1:1.524 - 91.6 mph
1:1.125 - 124.1 mph
1:0.888 - 158.0 mph
1:0.676 - 200.3 mph
1:2.125 - 65.5 mph
DifferentialZF final drive with limited-slip differential
Transfer Ratio1:1.8
Final drive2.529:1

CHASSIS
StructureHigh-resistance steel alloy and carbon fiber
BodyAluminum alloy and hand lay-up composite materials
SteeringUnassisted mechanical rack and pinion
WheelsOZ Single-piece magnesium
- front8.5 x 18 inches
- rear13 x 18 inches
TiresDunlop racing slicks
- Front235/615 18
- Rear330/675 18

SUSPENSION
Front/RearIndependent front and rear double wishbones, coil springs, anti-roll bar & front antidive/antisquat geometry
ShocksElectronic shock absorber system with manual and automatic control.

BRAKES
TypeAll-wheel Brembo Perforated & Ventilated Racing Discs
Front Discs 355 mm
Front Caliper Pistons44/38 mm
Rear Discs335 mm
Rear Caliper Pistons 40/36 mm
DIMENSIONS
Wheelbase2650 mm / 104 in
Overall Length4510 mm / 177.6 in
Overall Width2040 mm / 80.3 in
Overall Height1115 mm / 43.9 in
Front Track1540 mm / 60.6 in
Rear Track1640 mm / 64.6 in
Ground Clearance110 mm / 4.3 in
Front Overhang930 mm
Rear Ovehang890 mm
Weight1430 kg / 3152 lbs
Distribution
Front / Rear
44 / 56
Fuel Tank100 Litres / 26 U.S. Gallons
Turning Circlen/a

PERFORMANCE
Top speed335 Km/h / 208 Mph
0-60mphn/a
0-100mphn/a
Fuel Consumption
- Highway
- City
n/a
n/a

PRICE IN US$		n/a

DIABLO ROADSTER VT-R REGISTRY
Copyright © 2001 International Lamborghini Registry
Last updated: May 13, 2001