STW

The design of the Opel engine for the Super Touring Car Championship (STW) represented the logical consequence to the Formula 3 successes. The STW regulations stipulated an engine limited to 8,500rpm. Still, Spiess achieved an impressive 314bhp, with this 2-liter power unit. A completely newly designed cylinder head that was turned by 180°, in the engine bay, resulting in a significantly shorter exhaust way. The know-how used by Spiess for designing the cylinder head and the camshaft was crucial on the way to the motor-racing success.

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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.

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.

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.

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.

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.