en:Car Terms:T:TSI Engines 2019.0.14.0 DZ/FR

SEAT Glossary

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T

Turbo Stratified Injection - TSI

TSI is our pioneering technology for petrol engines. TSI engines are compact, high-powered and use less fuel. TSI technology blends the best of our TDI diesel and FSI (fuel stratified direct injection) petrol engines to give you excellent driveability and outstanding fuel economy. Acceleration is instant, whichever gear you're in, so overtaking is safer and you can power smoothly up hills with no delay. By adding a turbocharger and a supercharger to the fuel-injected engine (hence TSI), we have developed an engine with small car fuel economy and emissions, but the power of something much bigger. The engine-driven supercharger operates at lower engine speeds with the turbocharger, powered by the exhaust gases, joining in as engine speed rises. The result is excellent driveability, no turbo lag and outstanding performance throughout the rev range.

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