Siegfried Spiess Motorenbau GmbH
Dieselstrasse 11    D - 71254 Ditzingen
Phone +49 ( 71 56 ) 95 61 - 0
Fax +49 ( 71 56 ) 95 61 - 11

Dynamic Engine Test Rig 1

Highly dynamic multiconfiguration test bench

Load system
2 x ELIN asynchronous generators type Indy 50/4P/2653
incl. Hueber 2KF200-2 test bench transmission
Max. brake power: 2 x 500 kW
Max. brake speed: 10000 rpm
Modification of the torque orifice flange and the transmission allow up to 20000 rpm
Automation system: AVL-Puma 5.6.2
Measuring systems
Torque: Flexional beam at the brakes
Torque orifice flange
HBM T10FS 2 kNm at the input shaft
Weather definition: Intake air temperature at intake air port
Absolute pressure in the cell
Measurement of the relative atmospheric humidity
Analog measuring channels: Intake temperature
Water inlet temperature
Water outlet temperature
Oil inlet temperature
Oil outlet temperature
Fuel inlet temperature
Fuel outlet temperature
Another 17 analog measuring channels are available
NiCrNi: 8 # free (exhaust gas temperature)
Pressure measuring channels: Barometric pressure
Fuel pressure
Oil pressure
Induction pipe pressure
Exhaust gas back-pressure
Crankcase pressure
Media supply
  Cell air supply
Conditioned combustion air supply
Cell temperature control
Charge-air cooling control
Cooling water temperature control
Oil temperature control
Exhaust air disposal
Exhaust gas disposal


Exclusive sale of engines

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Construction Design of completely new engines or the enhancement of existing power units –inventive spirit, courage, extensive team work and our huge wealth of represent the basis for innovative results.
Manufacturing Precision components or the refinement of existing components, single copy or small-batch series, solid material or cast material – a diversified service range thanks to an ambitious mix of know-how and new developments.
Quality management Out there on the racetrack, the smallest mistake can be crucial. Therefore, special emphasis is placed to a gapless and absolutely precise quality control. No part will be installed without having been subjected to an extremely strict examination.
Engine manufacturing The engines are individual custom products and are assembled in the heart of the company by a highly qualified team. Here, quality instead of quantity represents the yardstick.
Test bench Here, the process represented by development and design, production and manufacturing comes full circle. On the test rigs, the components or the entire project have to definitively demonstrate if they meet the highest standards.