Description:

ROTOTEST VPA-RX73 HUBDYNO, 4WD Chassis Dynamometer System

This includes the following main items:

4 x VPA-RX Dynamometer units, 2 VPA-RX7 and 2 VPA-RX3

1 x Hurricane Cooling Unit, HCU26-Split

1 x Hurricane Cooling Unit, HCU16-Split

1 x System Control Unit, SCU. Steel cabinet on wheels

1 x Flat screen display

1 x Software license kit: ROTOTEST® DynoVision™ Basic single-seat license, ROTOTEST® Datmon™ Basic single-seat license.

1 x Standard accessory kit, with

4 x R2662-102 ROTOTEST® Wheel Adapter (PCD 92 – 120.65 x 5)

20 x R1028-103 ROTOTEST® Wheel Bolt (M12x1.5)

1 x Torque Rod for calibration

1 x Service and User’s Manual (English)

Facts about Rototest:
A Rototest dynamometer uses fixed coupling to the driving wheel hubs, and it can therefore not slip at all , as it may on a traditional rolling road. We do not base official figures on any so-called dynamic measurement method. All carmakers measure their official performance data by the method we do. The measurement method has also demonstrated the best repeatability of all in the current known measurement methods. This is in other words the only fair way to compare upgrades the of the car to that of the manufacturer"s original data. Finally, horsepower and torque are both represent the force achieved at a given rpm . So there is no variable between the two for a given speed. Meaning that if your car has a certain value in Nm at a certain speed, it always means with out exemption the same number hp at this given speed. The torque which is usually at maximum somewhere in the engine"s midrange speed thus reflects how many horsepowers are available at this speedrange. During an everyday acceleration situation most of the time is spent right in the midrange and therefore it is the torque that wins the race.
 

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