Racing Dynamics Working on 2011 BMW 5-Series with 410HP 535i R35 and 620HP 550i R50S Models

Russia's Top Car isn't the only tuner tampering around with the recently revealed, but not yet available, 2011 BMW 5-Series sedan. So is Racing Dynamics, otherwise known as RDSport in the USA. The Italian tuner that specializes on BMW products, has released a teaser photo (chop) and preliminary specs on the 535i R35 and the 550i R50S that will both receive a bevy of performance and styling mods.

While Racing Dynamics has not yet released specific details on the engine upgrades, the tuner said that the 535i R35's 3.0-liter inline-six with the twin-scroll turbocharger will receive an extra boost to produce 410HP and 383lb-ft torque for an estimated 0-60mph (96km/h) sprint time of 5.3 seconds, or 0.7 seconds faster than the standard 306HP 535i.

The range-topping 550i with the R50S package will deliver an output of 620-horsepower versus the factory model's 407HP 4.4-liter twin-turbo V8.

In addition to the engine mods, the Bavarian sedans will also benefit from a custom made exhaust system, a high performance braking system, a new rear-locking differential and a retuned and lowered suspension with new gas struts for the front axle and gas-pressurized shock absorbers for the rear.

The package will be rounded off with new 21-inch lightweight alloy wheels, an aero kit and various options for the interior including special trim inlays.

More details are expected to be released within the next few weeks.

Via: F10post & BMWblog

BMW RS35 BiTurbo with 414HP by Racing Dynamics

For those that insist on turning their backs on factory cars in favor of tuner-prepped models, or in this particular case, if you prefer a modified BMW 335i Coupe with 414HP over a standard 420HP M3, Racing Dynamics has revealed its latest proposal in the form of the RS35 BiTurbo. The Milan-based tuning firm that is also known as RDSport, has upgraded the 335i's turbocharged straight-six engine with electronic modifications along with a free-flowing intake and a larger, more-efficient intercooler resulting to an output of 414HP and 404 lb/ft of torque.

The Italian tuning house did not disclose performance figures for the RS35 BiTurbo, but we gather that it will be a tad faster than the stock 306HP 335i Coupe that goes from 0 to 100km/h (62mph) in 5.5 seconds versus the M3's 4.8 seconds.

To improve handling, Racing Dynamics has equipped the 335i Coupe with "custom-valved" Bilstein struts, stiffer springs and anti-roll bars. The Bavarian coupe that rides on new 20-inch multi-piece wheels shod in Pirelli P Zero Nero rubber, now sits 25 mm lower in the front and 20mm lower at the rear.

On the outside the RS35 BiTurbo is distinguished by the new carbon-fiber front bumper with larger openings for better engine and brake cooling with an exposed carbon housing for fog lights. A new set of side skirts and revised rear apron with quad exhaust cut outs along with a roof and trunk spoiler complete the changes.

As for the interior, upgrades include the RS Pedal Set in machined aluminum, aluminum hand brake cover, logo carpet set, a new speedometer and RDSport crests in the steering wheel and shift knob.

Source: RDSport , Via: Worldcarfans