Info
Daimler Dart SP250
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Manufacturer | The Daimler Company Limited |
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Also called | Daimler Dart |
Production | 1959–1964 |
Class | Sports car |
Body style | 2-seat open car |
Layout | FR layout |
Engine | 2.5 litre iron-block V-8 140 HP |
Transmission | 4-speed manual 3-speed automatic |
Wheelbase | 92 in (2,337 mm) |
Length | 165 in (4,191 mm) |
Width | 60 in (1,524 mm) |
Height | 50.25 in (1,276 mm) |
Kerb weight | 2,070 lb (940 kg) |
The Daimler SP250 is a sports car which was built by British manufacturer Daimler in Coventry from 1959 to 1964.
The SP250 was originally known as the Daimler Dart, however Daimler were soon forced to drop the Dart name when threatened with legal action by Chrysler’s Dodge division, and the car was then renamed the Daimler SP250.
It was launched at the 1959 New York Motor Show, and its greatest success was in the North American market. It had a fibreglass body, four-wheel Girling disc brakes, and a 2.5-litre Hemi-head V8 engine designed by Edward Turner. The car was described as a 2+2, but the bench-like rear seat offered very limited leg room unless the front seats were pushed fully forward. Thirty black Daimler Darts with the Borg-Warner Model 8 3-speed automatic were used by the British Metropolitan Police.
Versions
- A-spec:The original A-spec version could do 120 mph (193 km/h), but the chassis, a “14-gauge ladder frame with cruciform bracing” based on the Triumph TR3, flexed so much that doors came open, marring its reputation. Bumpers were originally an optional extra.
- B-spec :Jaguar bought Daimler in 1960, and were immediately concerned about the chassis flex. They brought out the B-spec version with extra outriggers on the chassis and a strengthening hoop between the A posts. There were also other detail improvements, including an adjustable steering column.
- C-spec: The C-spec version, introduced in 1963, had some additional luxuries as standard equipment.
2,645 were produced in total (all specs).
Jaguar built a prototype replacement (known as the SP252) with a neater body style but decided not to proceed with production. Ogle Design produced a coupé version called the SX250, but this was not taken up by Daimler and the body design was later used for the Reliant Scimitar.
Specification
- Engine: V 8 iron block, water cooled, OHV, bore 76mm x stroke 70mm, capacity 2547 cc. Single central camshaft operated valves through short pushrods with double heavy-duty valve springs. Aluminium alloy hemispherical cylinder heads. Stiff 5 main bearing crankshaft, dynamically balanced. Compression ratio 8.2:1. Twin SU carburettors. bhp 140 @ 5800 rpm. Max Torque 155 lb·ft (210 N·m) at 3600 rpm. SU electric fuel pump.
- Ignition: Coil and distributor with conventional automatic advance & retard.
- Lubrication: Submerged gear oil pump with full flow filter. Sump capacity 1.75 US gallons.
- Cooling: Pressurised radiator with fan, pump and thermostat control.
- Transmission: 4 speeds with synchromesh on top three ratios. Provision for overdrive. Automatic optional.
- Rear Axle: Hypoid bevel 3.58:1
- Steering: Cam & follower.
- Suspension: Front independent with coil springs. Rear live axle with half elliptic leaf springs. Oversize dampers.
- Brakes: Girling Discs on all four wheels,hydraulic operation.
Performance
PERFORMANCE: max speed in 1st gear: 42.0 mph, 67.6 km/h; max speed in
2nd gear: 71.0 mph, 114.3 km/h; max speed in 3rd gear.: 100.0 mph, 161 km/h; max speed in 4th gear: 124.2 mph, 200 km/h; power-weight ratio: 15.0 lb/hP, 6.8 kg/hp; acceleration: standing 1/4 mile 17 sec, 0—80 km)0—50 mph, 6.8 sec; speed in direct drive at 1000 rpm: 20.6 mph, 33.2 km/h.
Media Appearances
- Modesty Blaise had an ivory-coloured Dart in the early book versions of her adventures, and it also appeared occasionally in the comic strip.
- A Dart features briefly in the film The Fast Lady.
- A green Dart was used in the ITV Series Heartbeat in 2005.
A green Dart used in the ITV Series Heartbeat in 2005.
Technical
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Daimler SP 250 Technical specifications
PRICE New: £1,277.
BODY: sports in plastic material
Doors: 2; seats: 2.
ENGINE CAPACITY: 155.84 cu in, 2548 cu cm
FUEL CONSUMPTION: 27.4 m/imp gal, 22.8 m/US gal, 10.3 1 x 100 km;
SEATS: 2
MAX SPEED: 124.2 mph, 200 km/h;
ENGINE: front, 4 stroke; cylinders: 8, Vee-slanted at 90 degrees
- Bore and stroke: 3.00 x 2.75 in, 76.2 x 69.8 mm
- engine capacity: 155.84 cu in, 2548 cu cm
- compression ratio: 8.2 : 1; max power (SAE): 140 hp at 5800 rpm; max torque (SAE): 155 1b ft, 21.4 kgm at 3600 rpm; max number of engine rpm: 6500; specific power: 54.9 hp/l
- cylinder block: cast iron; cylinder head: light alloy
- crankshaft bearings: 5; valves: 2 per cylinder, overhead, Vee-slanted, with push rods and rockers; camshaft: 1, at centre of Vee; lubrication: gear pump, full flow.
filter lubricating system capacity: 6.9 imp qt, 8.3 US qt. 7.9 1
Carburation: 2 US type HD 6 semi-downdraft carburettors; fuel feed: electric pump
cooling system: water; cooling system capacity: 11 imp qt, 13.2 US qt, 12.5 litre.
TRANSMISSION:
- driving wheels: rear
- clutch: single dry plate
- gear box: mechanical; gears: 4 + reverse; synchromesh gears: 2nd v 3rd, 4th; gear box ratios:(l) 4933, (II) 1.742, (III) 1.232, (IV) 1, (Rev) 3.771
- Gear lever: central
- Final drive: hypoid bevel; ratio: 3.580 : 1.
CHASSIS: box-type ladder frame; front suspension: independent, wishbones, coil springs, telescopic dampers; rear suspension: rigid axle, semi-elliptic leaf-springs, lever dampers.
STEERING: cam and peg; turns of steering wheel lock to lock: 2.66.
BRAKES: disc.
ELECTRICAL EQUIPMENT: voltage: 12 V; battery: 38 Ah; ignition distributor: Lucas; headlights: 2 front.
DIMENSIONS AND WEIGHT:
- wheel base. 92.00 in, 2337 mm;
- front track: 50.0 in, 1270 mm; rear track: 48.0 in, 1219 mm; overall length: 160.50 in, 4077 mm;
- overall width: 60.50 in, 1537 mm; overall height: 50.25 in, 1276 mm;
- ground clearance: 6.00 in, 152 mm
- dry weight: 2090 1b, 948 kg:
- distribution of weight: 54 percent front axle, 46 percent rear axle
- turning radius (between walls): 16.5 ft, 5.0 m;
Tyres: 5.90-15
Fuel tank capacity: 14.00 imp gal, 16.90 US gal, 64 1.
VARIATIONS AND OPTIONAL ACCESSORIES:
Optional extras
The following items could be ordered for the standard car:
- Wire wheels
- Adjustable steering column
- Hard top
- Front and rear bumpers
- Windscreen washers
- Heater
- Fog lights
- Seat belts
overdrive, automatic gear box adjustable steering wheel; hardtop.
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Service
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Daimler Dart SP250 Service instruction
Fuel: petrol, 98 Oct; engine sump oil: 6.0 imp qt. 7.2 US qt, 6.8, SAE 20 (winter) 30 (summer), change every 5000 miles, 8000 km;
Gearbox oil: 0.7 imp qt, 0.8 US qt. 0.8 1, SAE 30, change every 10000 miles, 16100 km
Final drive oil: 0.7 imp qt, 0.8 US qt. 0.8 1, SAE 90, change every 10000 miles, 16100 km; steering box oil: 0.7 imp qt. 0.8 US qt, 0.8 1, SAE 140;
Greasing: every 5000 miles, 8000 km, 18 points
Tappet clearances: inlet 0.011 in'0.28 mm, exhaust 0.014 in, 0.36 mm; valve timing: (inlet) opens 130 before tdc and closes 65 ° after bdc, (exhaust) opens 55 ° before bdc and closes 230 after tdc
Tyre pressure (medium load): front 25 psi, 1.8 atm, rear 27 psi, 1.9 atm.
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