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Caterham Ford Sigma 1.6


Produced: 2007-0
Caterham Ford Sigma 1.6
Caterham’s legendary Seven family is boosted next month (February) with the arrival of the brand-new 150 bhp Ford Sigma to deliver a rasping 270bhp per tonne for just £17,495.
The arrival of the 150bhp variant of the two-seater marks a departure from Caterham’s original plans when it first announced details of the replacement for the long-serving K-Series engines last autumn.
The entry-level 125bhp version of Ford’s Sigma powerplant was so good when mated to the new, stiffer chassis, that engineers decided to raise the bar for the planned mid-range model by a further 25bhp – not the 15bhp initially slated.
Prices for the 150 powerplant will start at £17,495 in Roadsport guise, or for those looking for a stripped down, more track-focused model, the Superlight will weigh in at an attractive £20,495. The latter, with its carbon-cycle wings, 6 speed box and uprated suspension, will offer a devilish 300 bhp per tonne and a 0-60mph time of around 4.6 seconds.
In order to reach the new output, Caterham engineers revised the intake, added butterfly throttles and recalibrated the engine mapping on the Ford 1.6-litre unit. The result is a throaty, torque-filled unit delivering an extra 25 horses for just £1,500 more than the entry-level Roadsport model.
The new mid-range Ford Sigma Seven benefits from the same perfect blend of meaty torque, stiff lightweight construction, and exceptionally smooth power delivery that has made the 125bhp a winner with customers and the media alike.More than 10,000 road, and 1,200 track, miles have been completed as part of the Sigma engine validation process making it the most rigorous R&D programme of its kind in Caterham’s long and illustrious history.

Caterham’s ambitious product strategy to replace the K-Series engine after 15 years service continues unchecked. More new models are in the pipeline including a blistering 50th anniversary one-off special planned for the 7’s Golden Jubilee celebrations at Donington, 2nd-3rd June 2007.

Technical Specification: Ford Sigma 1.6-litre

Overview Technical features:
• High level of running refinement and low emission levels
• Aluminium alloy cylinder block and head
• Cross flow cylinder head
• Structural aluminium oil-pan for increased engine stiffness
• Twin overhead camshafts each with five bearings
• Sequential multi-port fuel injection system
• Long life, glass fibre reinforced camshaft drive belt with automatic tensioner

Caterham Seven Roadsport 150
Capacity (cc) 1595
Number of Cylinders 4
Compression ratio: 11:1
Bore/Stroke (mm) 79,0/81,4
Max Power (bhp/rpm) 150 @ 6900
Max Torque (lbs ft/rpm) 120 @ 5600 (tbc)
Weight 550kg
0-60mph 4.9 Seconds (est)
Power-to-weight 270 bhp-per-tonne
Price in CKD £17,495

Caterham Seven Superlight 150
Capacity (cc) 1595
Number of Cylinders 4
Compression ratio: 11:1
Bore/Stroke (mm) 79,0/81,4
Max Power (bhp/rpm) 150 @ 6900
Max Torque (lbs ft/rpm) 120 @ 5600 (tbc)
Weight 500kg
0-60mph 4.6 Seconds (est)
Power-to-weight 300 bhp-per-tonne
Price in CKD £20,495
Source: Motorbase


Top Speed0-60SQMMPGEngine PwrComment
0 mph0 s0 s0 mpg125 bhp 0
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