Super Car: 2009 G-Power G4 BMW Z4

300 km/h top speed, 0-100 km/h in just 4,9 seconds, 375 hp and an engine’s peak torque of 420 NM: These are the characteristics of the latest G-POWER development for the BMW Z4 3.0i.

In addition to the increase in power output of 144 hp for the 6- cylinder engine, that normally produces 231 hp, the G-POWER offers a complete tuning program for the Bavarian roadster consisting of: Aerodynamic body kit, light-alloy wheels, suspension modifications, high-performance brake system and exclusive interior components.

G-POWER offers superchargers system for increased power output looking back on 25 years of experience in tuning BMW automobiles. The new G-POWER EVO III supercharger system is an evolution, based on the well known systems for the Z4 2,2 to 3,0 l six- cylinder engines of the BMW Z4. Its core is an ASA T1-12 supercharger from the all new “black-line” edition that features ceramic ball bearings for an increased rpm limit of the charger. Accordingly the boost rises to a higher pick of 0,6 bar rel. , which is cooled down by a large air-to-air inter cooler and controlled by an Dual Flow bypass system. To keep the oil temperatures at level the G-POWER EVO III system is equipped with a thermostat controlled oil cooler, that prevents the ASA supercharger from overheating. On the exhaust side the G-POWER EVO III system features a complete exhaust system with racing-headers and catalysts. This measure optimizes power yield, throttle response and also ensures the engine’s thermal health. Specially developed mapping for engine electronics coordinate the perfect interaction of all new components.

The results of the G-POWER treatment are impressive: With 375 hp at 6.450 rpm and 420 NM torque at 4.650 rpm the standard 231 hp strong BMW Z4 3.0i becomes a true eliminator. With a sprint time from rest to 100 km/h of 4.9 seconds and to 200 km/h in 15,1 seconds the G-POWER G4 is at level with the BMW Z4M and finally outruns it with a top speed of 300-km/h. The conversion of the standard engine to the G-POWER EVO III configuration is 18,850,00 Euro including the installation; which can only be done at our headquarters’ workshop in Autenzell Bavaria.

The enormous performance places extreme demands on aerodynamics, tires, suspension and brakes. The G-POWER front apron replaces the production part in its entirety. Its large air inlets provide optimal supply of cooling air for the high performance air-to-air inter cooler. At the same time the spoiler minimizes lift on the front axle at high speeds. The G-POWER rocker panels smooth the airflow between the wheel houses and give the Z4 a longer, lower and sleeker appearance. Lift on the rear axle is reduced by the G-POWER rear apron, that features the needed openings for the 4 pipe G-POWER rear muffler.

The G-POWER Silver stone 20-inch light-alloy wheels that fill out the space beneath the wheel arches perfectly, underline the distinctive new look of the G-POWER equipped BMW Z4, are mounted in sizes 9.0 J x 20 with size 245/30 ZR 20 tires in front and size 10.0 J x 20 wheels with size 285/25 ZR 20 tires on the rear axle.

The large wheels make room for the G-POWER high-performance brake system with eight-piston fixed calipers and 380 x 34 millimeter brake discs on the front axle. The Z4 handling can be made even sportier by installing the height-adjustable G-POWER coil-over suspension RS with nine selectable settings each for bound and rebound.

The G-POWER EVO III supercharger system is available for all BMW Z4 3.0i with manual transmission, along with the numerous items from the extensive G-POWER tuning accessories lineup.

Mini slams down premium Coopers

story source : GoAuto

BMW’S Mini brand has wound up the wick with two new John Cooper Works (JCW) models, offering higher levels of performance for both the second-generation hard-top and the longer new Clubman model.

This means 155kW of power and a 0-100km/h sprint claimed to be as low as 6.5 seconds – an improvement over the previous JCW kit for the Cooper S that released 141kW/250Nm and enabled the small car to complete the 0-100 dash in 6.8 seconds.

John Cooper Works is a tuning house run by John’s son Mike Cooper, which built performance kits for the first- and second-generation BMW-built Mini that could be ordered as an accessory or fitted as an option at the factory.

The German manufacturer has now bought the JCW operation, bringing it in-house and creating a full model rather than an after market-oriented special.

The latest iteration of the 1.6-liter direct-injection turbocharged engine generates 155kW at 6000rpm, up from 128kW in the regular Cooper S.

Torque is up from 240Nm to 260Nm from 1850rpm to 5600rpm. As is the case with the Cooper S, there is an over boost function that releases another 20Nm of torque for short periods.

The gain is achieved using fine-polished camshafts, a stronger cylinder head and valves, a new air intake, 0.4 bar more boost pressure and a free-flowing exhaust.

The result makes the JCW model – for the first time in second-generation guise – faster than the previous supercharged 1.6 (with a Chrysler-sourced engine), which completed the 0-100km/h benchmark in 6.6 seconds, a tenth outside this new model. Fuel consumption is rated at 6.9L/100km.

The new Club man JCW model manages the 0-100km/h sprint in just 6.8 seconds and uses 7.0L/100km.

In order to withstand the extra torque over and above the standard Cooper S, Mini has fitted the JCW with a strengthened six-speed manual that uses closer gear ratios. No automatic transmission is available.

Other features include re calibrated sports suspension with firmer dampers and stronger anti-roll bars front and rear, which lowers the ride height by 10mm. More potent brakes are also on board, with red-painted four-piston calipers up front.

As is the case with other Minis, the JCW cars use run-flat tires. The wheels are no larger than the Cooper S, measuring 17 inches, but are a custom design made from lightweight aluminum.

As is the case with regular Minis, the JCW models come standard with electronic stability control, but they have an additional feature called Dynamic Traction Control, which allows the wheels to slip a little in the name of sportier driving.

Drivers can also completely switch off the stability control system. In order to put as much of its power down to the ground as possible, the JCW models run what Mini refers to as an Electronic Differential Control Lock.

Rather than using a traditional mechanical system, this simply brakes the inside wheel. Mini claims this system enhances traction while limiting torque steer.

The exterior features that distinguish a JCW from a Cooper S are subtle, to say the least. Apart from the wheels and the red calipers there are some badges at the front and rear and slightly larger exhaust pipes (85mm).

As is the case with Chilli models, JCW cars come with bi-Xenon headlights, the option of bonnet stripes, leather/cloth combination seats, climate control, a premium sound system, dark rear windows, piano black interior and Anthracite roof lining.

The Clubman models also come with Blue tooth connectivity and a USB interface, an armrest and a removable false floor.

The JCW hard-top is priced at a hefty $8900 more than the standard Cooper S and $5300 more than the Cooper S Chilli. Choosing a JCW Club man will cost $8100 more than the Cooper S model and $4300 more than the Cooper S Chilli.

As is the case with all Minis, there is a long options list, plus some exclusive JCW accessories including a large rear spoiler, more aggressive bumpers, sportier suspension, strut braces, perforated brake discs, carbon-fiber gearshift knob and gearshift lever surround, and a gearshift indicator light.