Formula 3 Opel

With Opel, Spiess entered the days of the 4-valve engines. Spiess was supplied with the engines by Opel for testing and optimising purposes. Just three months later, the work proved to be successful, with the test-bench tests demonstrating a clearly improved performance. The advantages of a 4-valve engine compared to the conventional 2-valve engines were obvious. Furthermore, the Opel engine was the first Formula 3 engine ever to be equipped with a knock control, by Spiess. This control was adjusted in cooperation with Opel and Bosch and prevented extremely expensive engine blow-ups. After all, a fuel of identical quality wasn't available at all the circuits all around the planet, in those days. Another important step to success was achieved by Spiess by the mounting of a variable induction pipe with variable inlet camshaft - this way, both torque and power could be increased. The Opel Formula 3 engine has continued its triumphant success until today. It represented the most complex Spiess design so far.

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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.