A product developed with passion.
A fully variable VCR crankshaft
An important advantage of the Gomecsys VCR system is the ease of integration in an existing engine configuration.
The Gomecsys VCR crankshaft uses split eccentrics which are assembled on each crankpin of a one part crankshaft.
The split eccentrics are assembled on the crankpin with special clamps, called “dog bones”.
The eccentrics are all driven by a dedicated gear mechanism. The gear mechanism has to fulfill two functions.
1 – Drive all eccentrics at half the crankshaft speed.
2 - Adjust the position of the eccentrics to achieve to optimum CR position depending on engine load and speed. 90 deg. for max. CR and -70 deg. for min. CR.