The secret heartbeat of your car

audi The engineering shift from carburetors to high-pressure direct fuel injection.

audi Direct Fuel Injection

Pressure sprays, microseconds tick, the cylinders fire

audi The stoichiometric ratio of air and fuel in combustion engines.

audi A fast fan uses exhaust gas to pump compressed air into engine cylinders

audi An isometric 3D render reveals a labeled fuel injector spraying inside a cylinder

BETA

audi Feed the Vroom Monster fuel and air to discover how combustion powers a car.

Fun Fact

Precious exhaust: Catalytic converters are packed with rare metals like platinum that are worth more than gold.

Gossip

Would you pay extra for a car with a turbocharger?

Quiz

What is the ideal weight ratio of air to gasoline for perfect combustion?

audi How catalytic converters clean toxic car exhaust.

Quiz

What device did modern fuel injectors replace in older cars?

Quiz

Who patented the catalytic converter in 1956 to reduce car smog?

Quiz

What is a 'lean' air-fuel mixture?

Quiz

Which precious metal is commonly found inside a catalytic converter?

Quiz

What harmless substances do catalytic converters turn toxic carbon monoxide into?

Quiz

Who invented the turbocharger in 1905 to boost engine power?

Quiz

What powers a turbocharger to spin up to 250,000 RPM?