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TVR 450 SEAC

(1989 model)

Brief specs of 1989 TVR 450 SEAC

2-door 2-seater drophead coupé (convertible coupé), petrol (gasoline) 8-cylinder 16-valve V engine, OHV (overhead valve, I-head), 4497 cm3 / 274.4 cu in / 274.4 cu in, 238.6 kW / 320.0 hp / 320.0 hp @ 5700 rpm / 5700 rpm / 5700 rpm, 420.0 N·m / 309.8 lb·ft / 309.8 lb·ft @ 4000 rpm / 4000 rpm / 4000 rpm, manual 5-speed transmission, rear wheel drive, 257 km/h / 160 mph / 160 mph top speed

units: metric UK US

Basic (general) data

Marque (make)TVRIssued from1989
Model450 SEACIssued until
Serie450Number made
Model familyBody construction
Model codeBody designation
ManufacturerTVRCountryUK

Bodywork

Base platformNumber of doors2
Bodywork typedrophead coupé (convertible coupé)Number of seats2
Bodywork designerCargo capacity (volume)
Passenger space (volume)Max. cargo capacity (volume)

Dimensions & Weight

Length4013 mm / 158.0 in / 158.0 inTotal (curb) weight1043 kg / 2299 lb / 2299 lb
Width1727 mm / 68.0 in / 68.0 inDry weight
Height1219 mm / 48.0 in / 48.0 inLoad capacity
Wheelbase2413 mm / 95.0 in / 95.0 inGross (max.) weight
Track frontTowing weight
Track rearWeight distribution (front)
Ground clearanceFuel capacity
Length/wheelbase ratio1.66  

Aerodynamics

Drag coefficient (Cd, Cx, Cw)Frontal area (A)1.79 m2 / 19.3 sq ft / 19.3 sq ft (est.)
Aerodynamic coefficient (Cd×A)Aerodynamic resistance (Aero horse power) at 100 km/h (62 mph)

Engine

Engine CodeTotal number of cylinders8
Engine TypeV engine Total number of valves16
Engine ManufacturerValves per cylinder2
Engine constructionBore94.0 mm / 3.70 in / 3.70 in
Fuelpetrol (gasoline)Stroke81.0 mm / 3.19 in / 3.19 in
Fuel detailsBore/Stroke ratio1.16
Fuel supplyLu fuel inj.Engine displacement4497 cm3 / 274.4 cu in / 274.4 cu in
Engine Main bearingsUnitary capacity562.13 cm3/cylinder / 34.303 cu in/cylinder / 34.303 cu in/cylinder
Cam DesignOHV (overhead valve, I-head)Compression ratio9.8 : 1
SumpMax. output power238.6 kW / 320.0 hp / 320.0 hp at 5700 rpm / 5700 rpm / 5700 rpm
AspirationnaturalMax. torque420.0 N·m / 309.8 lb·ft / 309.8 lb·ft at 4000 rpm / 4000 rpm / 4000 rpm
Compressor typeN/AMaximum rpm
IntercoolernoMax. net output (power at the wheels)82.2 kW / 110.2 hp / 110.2 hp (est.)
CoolantwaterSpecific output53.1 kW/l / 1.166 bhp/cu in / 1.166 bhp/cu in
Catalytic converternoSpecific torque93.4 N·m/l / 0.82 lb·ft/cu in / 0.82 lb·ft/cu in

Transmission

Transmission typemanualNumber of gears5
Wheel driverear wheel driveTop gear (drive) ratio
  Final gear (drive) ratio

Performance

Acceleration 0-50 mph (80 km/h)Top (maximal) speed257 km/h / 160 mph / 160 mph
Acceleration 0-60 mph (97 km/h)4.70 s / 4.70 s / 4.70 sPower-to-weight ratio306.8 kW/ton / 232.5 bhp/ton / 232.5 bhp/ton
Acceleration 0-100 km/hFuel consumption, City (urban)
Acceleration 0-100 mph (160 km/h)Fuel consumption, Road (extra-urban)
Acceleration 80-120 km/h (50-70 mph) in topFuel consumption, Mixed (combined)
Standing ¼mile time Fuel consumption, Euro
Standing kilometer time CO2 emissions
  Range

Chassis

Engine locationfrontEngine alignment
SteeringSteering details
Turns lock-to-lockTurning circle
Suspension frontIndependent, Wishbone (A-arm, control arm), Coil springs, Anti-roll (anti-sway) bar (ARB)Suspension rearIndependent, Wishbone (A-arm, control arm), Coil springs
Wheels frontWheels rear
Tyres frontTyres rear
Brakes frontventilated discBrakes reardisc
Brake diameter frontBrake diameter rear
Brakes detailsBraked area

Technical specifications and performance data of TVR 450 SEAC

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