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TVR 420 SEAC

(1987 model)

Brief specs of 1987 TVR 420 SEAC

2-door 2-seater drophead coupé (convertible coupé), petrol (gasoline) 8-cylinder 16-valve V engine, OHV (overhead valve, I-head), 4226 cm3 / 257.9 cu in / 257.9 cu in, 223.7 kW / 300.0 hp / 300.0 hp @ 5500 rpm / 5500 rpm / 5500 rpm, 393.0 N·m / 289.9 lb·ft / 289.9 lb·ft @ 4500 rpm / 4500 rpm / 4500 rpm, manual 5-speed transmission, rear wheel drive, 266 km/h / 165 mph / 165 mph top speed

units: metric UK US

Basic (general) data

Marque (make)TVRIssued from1987
Model420 SEACIssued until
Serie420Number 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) weight1170 kg / 2579 lb / 2579 lb
Width1727 mm / 68.0 in / 68.0 inDry weight
Height1207 mm / 47.5 in / 47.5 inLoad capacity
Wheelbase2388 mm / 94.0 in / 94.0 inGross (max.) weight
Track front1468 mm / 57.8 in / 57.8 inTowing weight
Track rear1478 mm / 58.2 in / 58.2 inWeight distribution (front)
Ground clearance150 mm / 5.9 in / 5.9 inFuel capacity59 l / 13.0 UK gal / 15.6 US gal
Length/wheelbase ratio1.68  

Aerodynamics

Drag coefficient (Cd, Cx, Cw)Frontal area (A)1.77 m2 / 19.1 sq ft / 19.1 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 (V8)Total number of valves16
Engine ManufacturerRover (TVR modified)Valves per cylinder2
Engine constructionBore93.4 mm / 3.68 in / 3.68 in
Fuelpetrol (gasoline)Stroke77.1 mm / 3.04 in / 3.04 in
Fuel detailsBore/Stroke ratio1.21
Fuel supplyLu L-Jet fuel inj.Engine displacement4226 cm3 / 257.9 cu in / 257.9 cu in
Engine Main bearings5Unitary capacity528.25 cm3/cylinder / 32.236 cu in/cylinder / 32.236 cu in/cylinder
Cam DesignOHV (overhead valve, I-head)Compression ratio9.8 : 1
SumpMax. output power223.7 kW / 300.0 hp / 300.0 hp at 5500 rpm / 5500 rpm / 5500 rpm
AspirationnaturalMax. torque393.0 N·m / 289.9 lb·ft / 289.9 lb·ft at 4500 rpm / 4500 rpm / 4500 rpm
Compressor typeN/AMaximum rpm
IntercoolernoMax. net output (power at the wheels)86.2 kW / 115.6 hp / 115.6 hp (est.)
CoolantwaterSpecific output52.9 kW/l / 1.163 bhp/cu in / 1.163 bhp/cu in
Catalytic converternoSpecific torque93.0 N·m/l / 0.81 lb·ft/cu in / 0.81 lb·ft/cu in

Transmission

Transmission typemanualNumber of gears5
Wheel driverear wheel driveTop gear (drive) ratio0.72
  Final gear (drive) ratio3.07

Performance

Acceleration 0-50 mph (80 km/h)Top (maximal) speed266 km/h / 165 mph / 165 mph
Acceleration 0-60 mph (97 km/h)5.00 s / 5.00 s / 5.00 sPower-to-weight ratio256.4 kW/ton / 194.3 bhp/ton / 194.3 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 alignmentlongitudinal
Steeringrack & pinionSteering details
Turns lock-to-lock3.7Turning circle
Suspension frontIndependent, Double wishbones, Coil springs, Anti-roll (anti-sway) bar (ARB)Suspension rearIndependent, Lower wishbone, Coil springs, Anti-roll (anti-sway) bar (ARB)
Wheels frontWheels rear
Tyres frontTyres rear
Brakes frontventilated discBrakes reardisc
Brake diameter frontBrake diameter rear
Brakes detailsservo-assistedBraked area

Technical specifications and performance data of TVR 420 SEAC

Infobox

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