What does Twinport mean on a Vauxhall Corsa?

What does Twinport mean on a Vauxhall Corsa?

Twinport is a system which, under part load conditions, partially blocks one of the two branches of the inlet manifold upstream of each cylinder, near to the inlet valve. The extra inlet air turbulence allows the greater use of EGR without the engine mis-firing.

What does SXi mean on a Corsa?

SXI = Sports Xtras Inside. SRI = Sports Refinement Inside.

What is a Vauxhall TwinPort engine?

The second generation Family 0 began production in November 2002. It is an updated version of the Family 0 engine and features TwinPort technology – twin intake ports with a choke closing one of the ports at low RPM, providing strong air swirl pattern for higher torque levels and better fuel economy.

What does TwinPort mean on Astra?

Each of the two inlet valves per cylinder has their own port (hence “twinport”). Under light/medium throttle and low/moderate engine speeds, one of the ports for each cylinder is closed off by flaps which increases the gasflow in the other ports, which is good for economy, emissions and torque.

What’s the difference between Corsa SXi and SRi?

SRi has SRi badges on the doors and the SXi has SXi badges on the doors.

What engine is in a Corsa SXi?

The engines available in the Vauxhall Corsa SXi (not pictured) include 1.2 and 1.4-litre petrols and a 1.3-litre diesel with a range of power outputs – from the 84bhp 1.2i to the 99bhp 1.4i.

Does a Vauxhall Corsa have a Cambelt?

Running costs All third-generation Corsas need servicing every 20,000 miles or 12 months, regardless of the type of engine or its capacity. However, 1.4 and 1.8-litre petrol engines, plus the 1.7 Di, all have cambelts.

How does Vauxhall Twinport work?

Twinport works by a spring loaded valve contracting at high rpm. At rest and low RPM the valve is left out. This valve controls (by way of a plastic rail) the 4 metal plates in each of the inlet port pairs.