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The John Cooper Works MINI History 2001 - 2006

John Cooper Works tuning and MINI since 2001

 

The John Cooper Works tuning brand is an on-going story. Prior to the line of Oxford-built MINI John Cooper Works and MINI CHALLENGE cars in 2008, a line of aftermarket tuning kits and factory-built models plot the history of John Cooper Works back to 2001.

 

The majority of JCW tuning kits were fitted either at MINI dealers or at John Cooper Garages themselves.

 

From October 2005, for the first time, the 210bhp John Cooper Works (JCW) engine tuning kit was available as a factory fit option when ordering a MINI Cooper S in either hatch or convertible form. The cost was an extra £3,600 (inc. VAT).

 

The factory JCW features a modified cylinder head with higher compression, modified engine electronics and increased throughput injectors. The factory option will also include the following JCW products as standard: air filter system, 16″ disc brakes and callipers, exhaust pipe finishers, front apron and bootlid badges, and certificate of authenticity. A limited slip differential was also included in the cost.

 

After July 2004,also available, was a JCW Suspension kit, which lowered the ride height of the car by around 10mm. The springs were coloured red and were shorter and stiffer than the stock Cooper S springs. There was also a 'John Cooper Works' sticker on the struts. MINI recommended running on 18" wheels with this kit. The coil springs were available separately and were dependent on the spec. of the vehicle. The dealer matched the springs to the VIN of the car.

 

One misnomer in relation to the JCW, is the Aero kit. It is often called the JCW Aero Kit when used in for sale adverts. It was not exclusive to the JCW models, it was available for all early MINI models, R50, R52 and R53 and was called the Aerodynamics Package.

 

 

2001-04 John Cooper Works 126 bhp Tuning Kit for MINI Cooper

This tuning kit was introduced in early 2003 and made its world premiere at the Geneva Motor Show on March 4, 2003. It went on sale in the UK the next month. For model year 2005, MINI discontinued the JCW Tuning Kit for the MINI Cooper and replaced it with the John Cooper Works Sound Kit.

 

 

 

 

 

 

 

 

 

 

Technical Specification

 

Flowed and ported cylinder head

Upgraded Air filter

Cover injection tube

Uprated exhaust (from the catalytic converter back)

Remapped ECU

Decorative emblems

Performance data

 

126 bhp (94 kW) at 5750 rpm.

Peak torque is 114 ft.lbs. at 4750 rpm

 

In 2004, JCW discontinued the Cooper kit and introduced a Sound Kit for the Cooper. The Sound Kit consisted of a unique air intake system, cat-back exhaust and an ECU remap.

 

 

 

 

 

2002-04 John Cooper Works 200 bhp Tuning Kit for MINI Cooper S

 

 

Technical Specification

 

Modified cylinder head including valve drive and gaskets

Sport rear silencer in stainless steel

11% reduced supercharger pulley

High power spark plugs

Modified engine control unit

John Cooper Works badges

Engine cover finished in silver, including a John Cooper Works emblem

John Cooper Works certificate of authenticity

Performance data

 

200 bhp

245 Nm peak torque at 4,500 rpm

143 mph top speed

0-62 mph in 6.6 seconds

 

 

2004-06 John Cooper Works 210 bhp After-sales & Factory Tuning Kit for MINI Cooper S

 

 

Technical Specification

 

As 2003-04 John Cooper Works 200hp Tuning Kit for MINI Cooper S, but with: * JCW upgrade kit to increase power output, consisting of a complete JCW air filter system, injection nozzles with increased throughput and modified engine control unit

 

Technical Specification

 

Modified cylinder head including valve drive and gaskets

Sport rear silencer in stainless steel

11% reduced supercharger pulley

High power spark plugs

JCW Air intake system (with opening flap)

Upgraded injection nozzles

Modified engine control unit

Larger brake calipers, discs and pads in the front and upgraded pads in the rear

John Cooper Works badges

Engine cover finished in silver, including a John Cooper Works emblem

John Cooper Works certificate of authenticity

 

Performance data

210 bhp

245 Nm peak torque at 4,500 rpm

143 mph top speed

0-62 mph in 6.6 seconds

 

 

2005-06 Sound Kit for MINI Cooper (Performance equal to standard MINI Cooper)

 

Due to changes in the engines for the model year 2005 (production starting July 1, 2004), MINI discontinued the previous MINI Cooper JCW Tuning Kit for the 2002-2004 MINI Cooper.

 

In September 2005 MINI offered a John Cooper Works Sound Kit for the model year 2005 R50 MINI Cooper and R52 MINI Cooper Convertible. While the Sound Kit added a modest 3 hp, its main purpose was to give the Cooper a more aggressive sound.

 

The John Cooper Works Sound Kit MINI Cooper part number is 11 12 0 395 823 (for the R50) and 11 12 0 395 824 (for the R52). The price was £645 (excluding installation). Estimated fitting time was 1 hour.

 

The JCW Sound Kit included the following:

 

John Cooper Works exhaust with JCW tip

John Cooper Works air intake and air filter element

John Cooper Works engine cover

John Cooper Works rear emblem

John Cooper Works emblem for valve cover

John Cooper Works modified ECU