Siegfried Spiess Motorenbau GmbH
Dieselstrasse 11    D - 71254 Ditzingen
Phone +49 ( 71 56 ) 95 61 - 0
Fax +49 ( 71 56 ) 95 61 - 11
Email info@spiess-gruppe.de

Engine Test Rigs

After the painstaking examination of every component and the following assembly, the engines approach the decision area. 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 and have deserved to bear the name Spiess and take it out into the motor-racing world.

Make-or-break!

Spiess have got five in-house test rigs: four engine-test rigs and a component-test rig. Together, they cover the most different testing possibilities, from air-mass and air-pressure tests to the weather survey and the supply with the required media, such as fluids, fuels and lubricants. Each test rig is equipped with a blow-by-meter. In addition, a type ‘Indymaster AVL’ indexing system is available for the individual use at the respective test rig.

The test-rig results are consistently surveyed and in the case of disturbances, the close cooperation with the different departments allows for immediate reactions.

The dynamic test rig represents one of the testing opportunities that are as close to reality as possible. Gear-shift procedures, brake points and throttle flap positions can be simulated according to real racing conditions. The entire engine has to cope with realistic driving situations and different environmental conditions. For the simulations of numerous racetracks according to the respective customer’s requirements, the racetrack data can be transferred right from the car or exactly according to customer specified driving cycles and parameters.

For details of our test rigs please click here:

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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.