The World’s First Scotch Yoke engine successfully developed in accordance with international engine development standards.



FEV Involvement
Market study REEV ICE sizing and fuel consumption study. Development of S415 TC to B-sample maturity
Design of the engine around the SYTECH cranktrain
Thermodynamic and mechanical CAE
Prototype hardware procurement and assembly
Combustion development
Test bench calibration
Function testing
Durability testing
1000h Scotch Yoke mechanism durability testing
Consideration of naturally aspirated and 2-cylinder derivates throughout the development



Four cylinder 1.495L turbocharged, GDI (S415 TC)
The SYTECH engine is an opposed cylinder engine
Single overhead CA M
4 valves per cylinder
Fixed valve timing
No EGR
Rated power 110 kW at 4500 rpm
Peak torque 234 Nm at 4500 rpm
Minimum BSFC less than 229 g/kWh at 3000 rpm
Low NVH and centre of gravity
Hydrogen fuel ready