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

DTM

At first Formula 3, then STW, now DTM - for Opel, relying again on the good cooperation of Rüsselsheim and Ditzingen went without saying, when it came to entering DTM (German Touring Car Masters). Since the move to the new facilities located at the Dieselstraße, Spiess had got what it takes to build nearly the complete engine in house. 80 percent of all the components are built by Spiess. The V8-engine curtailed by two air restrictors represented a new task, for the Spiess engineers. Still, they quickly found out that the position of the air restrictors was vital. The V8 delivers a mighty 470bhp, thus being the most powerful engine designed by Siegfried Spiess Motorenbau GmbH to date.

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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.