GTM Libra Specifications
LIBRA OVERVIEW LIBRA SPECS LIBRA SUSPENSION
Technical data for finished factory built cars. All figures are for guidance only and are subject to change.
General
Available in left or right hand drive versions and in a wide range of colours
Can be fitted with the front end from the GTM Spyder if preferred
Wheelbase = 2311 mm
Track (Front / Rear) = 1383 / 1383 mm
Centre of gravity height = 400 mm
Height = 1160 mm
Width (excluding door mirrors) = 1635 mm
Length = 3601 mm
Front overhang = 745 mm
Rear overhang = 545 mm
Fuel Tank Capacity = 35 litres
Boot Capacity = 174 litres
Headroom (seat to roof) = 880 mm
Legroom (max) = 1200 mm
Engine
Rover 'K' Series 1400cc - 2500cc KV6
Honda VTEC 1600cc
The Honda engine development comes as a result of expansion of GTM Cars into Japan and North America, where this engine is widely available and well known. Development for these markets has enabled the Honda engine to be offered in the UK and Europe. The Honda VTEC engine is extremely well proven, offers fantastic performance and provides excellent driveability and economy.
Rover KV6 2500cc
| Performance | First | Sports | Touring | |||
|---|---|---|---|---|---|---|
| Engine | K Series | VTEC | K Series | VTEC | K Series | K Series |
| Capacity | 1400 | 1600 | 1800 VVC | 1600 | 1800 VVC | 2500 V6 |
| 0-60 mph (s) |
7.5 | 6.1 | 5.8 | 6.2 | 5.9 | 4.9 |
| 50-70 mph (s) (4th gear) |
5.4 | 4.8 | 4.6 | 4.8 | 4.6 | 3.5 |
| Top speed (mph) |
120 | 140 | 140 | 130 | 130 | 150 |
| Max power (PS@rpm) |
103@6000 | 110@5600 | 135@6750 | 110@5600 | 135@6750 | 190@6500 |
| Max torque (Nm@rpm) |
123@5000 | 152@4300 | 165@5000 | 152@4300 | 165@5000 | 245@4000 |
| Fuel economy combined figure (mpg) |
46 | 44 | 43 | 44 | 43 | 32 |
| Kerb weight (kg) |
750 | 770 | 770 | 790 | 790 | 830 |
| Power to weight (PS/tonne) |
137 | 143 | 175 | 140 | 171 | 228 |
Chassis
Monocoque weight = 98 kg
Torsional Stiffness = 14000 Nm/deg (K series engine, windscreen fitted)
Torsional Stiffness = 18000 Nm/deg (Honda engine, windscreen fitted)
Steering
Unassisted rack and pinion
3.7 turns lock to lock
Turning circle = 10 m
Brakes
Disc diameter = 238 mm (front vented, rear solid)
Girling cast iron single piston calipers
Mechanical handbrake on rear calipers
Servo assistance
Front / rear hydraulic split
Wheels & Tyres
7.5 J 16 Low pressure diecast aluminium wheels
205 / 45 ZR16 Goodyear F1 tyres
Front Suspension
Double wishbone
AVO coil over dampers, gas adjustable 22 step rebound / bump
Adjustable spring seat
Ride frequency 90 cpm (1.50 Hz), adjustable by changing spring rates
Wheel travel = 60mm bump, 70mm rebound
Static camber = 0 degrees, adjustable by shimming
Camber gain in bump = 0.39 degrees per inch
Anti-dive = 10%
Roll centre height = 27mm
Kinematic steer = none
Castor = 7 degrees
King pin inclination = 11.5 degrees
Scrub Radius = 11mm positive
Rear Suspension
Angled double trailing arm
AVO coil over dampers, gas adjustable 22 step rebound / bump
Adjustable spring seat
Ride frequency 98 cpm (1.63 Hz), adjustable by changing spring rates
Wheel travel = 70mm bump, 70mm rebound
Static camber = -1.5 degrees, adjustable by shimming
Camber gain in bump = 0.58 degrees per inch
Anti-squat = 55%
Roll centre height = 0mm
Kinematic steer = toe in on bump