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Marcos Mantis

(1970 model)

Brief specs of 1970 Marcos Mantis

2-door 2+2-seater fixed-head coupé, petrol (gasoline) 6-cylinder 12-valve straight (inline) engine, OHV (overhead valve, I-head), 2498 cm3 / 152.4 cu in / 152.4 cu in, 111.9 kW / 150.1 hp / 150.1 hp @ 5500 rpm / 5500 rpm / 5500 rpm, 214.0 N·m / 157.8 lb·ft / 157.8 lb·ft @ 3000 rpm / 3000 rpm / 3000 rpm, manual with overdrive 4-speed transmission, rear wheel drive, 193 km/h / 120 mph / 120 mph top speed

units: metric UK US

Basic (general) data

Marque (make)MarcosIssued from1970
ModelMantisIssued until
SerieMantisNumber made
Model familyBody construction
Model codeBody designation
ManufacturerMarcosCountryUK

Bodywork

Base platformNumber of doors2
Bodywork typefixed-head coupéNumber of seats2+2
Bodywork designerDennis AdamsCargo capacity (volume)
Passenger space (volume)Max. cargo capacity (volume)

Dimensions & Weight

Length4742 mm / 186.7 in / 186.7 inTotal (curb) weight1450 kg / 3197 lb / 3197 lb
Width1803 mm / 71.0 in / 71.0 inDry weight
Height1168 mm / 46.0 in / 46.0 inLoad capacity
Wheelbase2590 mm / 102.0 in / 102.0 inGross (max.) weight
Track front1448 mm / 57.0 in / 57.0 inTowing weight
Track rear1448 mm / 57.0 in / 57.0 inWeight distribution (front)
Ground clearance114 mm / 4.5 in / 4.5 inFuel capacity80 l / 17.5 UK gal / 21.0 US gal
Length/wheelbase ratio1.83  

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 cylinders6
Engine Typestraight (inline) (Inline, 6 cylinder)Total number of valves12
Engine ManufacturerTriumphValves per cylinder2
Engine constructionBore74.7 mm / 2.94 in / 2.94 in
Fuelpetrol (gasoline)Stroke95.0 mm / 3.74 in / 3.74 in
Fuel detailsBore/Stroke ratio0.79
Fuel supplyLu fuel inj.Engine displacement2498 cm3 / 152.4 cu in / 152.4 cu in
Engine Main bearings4Unitary capacity416.33 cm3/cylinder / 25.406 cu in/cylinder / 25.406 cu in/cylinder
Cam DesignOHV (overhead valve, I-head)Compression ratio9.5 : 1
SumpMax. output power111.9 kW / 150.1 hp / 150.1 hp at 5500 rpm / 5500 rpm / 5500 rpm
AspirationnaturalMax. torque214.0 N·m / 157.8 lb·ft / 157.8 lb·ft at 3000 rpm / 3000 rpm / 3000 rpm
Compressor typeN/AMaximum rpm
IntercoolernoMax. net output (power at the wheels)65.0 kW / 87.2 hp / 87.2 hp (est.)
CoolantwaterSpecific output44.8 kW/l / 0.984 bhp/cu in / 0.984 bhp/cu in
Catalytic converternoSpecific torque85.7 N·m/l / 0.75 lb·ft/cu in / 0.75 lb·ft/cu in

Transmission

Transmission typemanual with overdriveNumber of gears4
Wheel driverear wheel driveTop gear (drive) ratio0.82
  Final gear (drive) ratio3.22

Performance

Acceleration 0-50 mph (80 km/h)Top (maximal) speed193 km/h / 120 mph / 120 mph
Acceleration 0-60 mph (97 km/h)8.00 s / 8.00 s / 8.00 sPower-to-weight ratio103.5 kW/ton / 78.4 bhp/ton / 78.4 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
SteeringSteering details
Turns lock-to-lockTurning circle10.4 m / 34.1 ft / 34.1 ft
Suspension frontIndependent, Wishbone (A-arm, control arm), Coil springs, Anti-roll (anti-sway) bar (ARB)Suspension rearLive axle, Radius arms, Coil springs
Wheels frontWheels rear
Tyres frontTyres rear
Brakes frontdiscBrakes reardrum
Brake diameter frontBrake diameter rear
Brakes detailsservo-assistedBraked area

Technical specifications and performance data of Marcos Mantis

Infobox

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