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Polyamide Air Box Gives A Competitive Edge To Superbikes

SpecialChem / May 17, 2010

Germany-based MHALE has developed an air box for S1000 RR – a BMW Motorrad’s first venture into modern superbikes territory. The air box used in S1000 RR is molded from dimensionally stable polyamide (PA) grade - Ultramid® B3WGM24 HP from BASF. The polyamide air intake manifold helps reducing the overall weight of the superbike. The intake system made of PA optimizes the torque (112 Newton meter or 83 foot pounds @ 9,750 rotations per minute) over a wide angle.

The required air passes through the filter element to the air box situated at the rear. The four adjustable-length intake pipes are located in the lower part of the box. Because of the limited space available for installation, short intake pipe lengths are used. Both upper and lower parts of the airbox are welded together. Prior to the welding, an actuator is attached to the lower part of the air box – this assists in electrically adjusting the runner length. In addition, the mineral content of the resin helps to reduce noise considerably.

It is interesting to note that in a survey conducted by Motor Cycle News in March 2010, BMW’s S1000 RR defeated all its major rivals annihilating the competition from both Japan and Europe. MCN took part in the annual Masterbike test at the new Motorland circuit near Valencia, Spain, where all nine 1000cc inline-fours and 1200 V-twin sports bikes competed head-to-head. Top marks are not just for the high brake horse power (bhp) output alone, but also for the clever electronics. One part of which is the performance mode selection switch where four choices are manually selectable. ‘Rain’ mode caps power to 150bhp and reduces the torque output, it also smoothes the throttle response.

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