What does Twinport stand for?

What does Twinport stand for?

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. At full throttle all ports are open ensuring no loss of output.

Where is Twinport?

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.

What’s the difference between single port and twin port?

A Dual/Twin port head has a port (or tube) for each intake valve (the 2 valves in the centre, not the out side) and a manifold like in the thrid image across that Joel posted. A Single port head has only one smaller intake tube/port that ‘splits’ in 2 for the two middle valves, inside the head.

What does Twinport mean on a Vauxhall Meriva?

Twin Audio is a first for a car of the Meriva’s class, allowing rear passengers to listen to radio and CD independently from the front passengers using headphones.

What’s SXi stand for?

SXI

Are Vauxhall engines good?

Vauxhall make pretty reliable cars, yes. They came fourth in the Telegraph’s top 20 brands for reliability, with 90 problems per 100 vehicles. They came ninth last year with 98 problems per 100 vehicles, so not only have they done extremely well, they are also improving.

What is dual port engine?

dual port. look at the intake manifold. it goes from the carb, down to a T, then out toward the cylinder heads. out toward the ends a single port will be one piece all the way to the head itself. on a dual port, the intake goes into END CASTINGS.

What kind of engine technology does Vauxhall TwinPort use?

Twinport technology builds on the standard four-valve technology of Vauxhall’s renowned ECOTEC engines. Savings are achieved via a variable intake manifold in combination with a high rate of exhaust gas recirculation.

How does TwinPort work in a car engine?

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. allowing more EGR.

How does the TwinPort work on a Vauxhall Corsa C?

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.

What’s the name of the Opel TwinPort engine?

Some Opel Engines come with something called TwinPort Technology. I guess that this increases power, as the original Z12XE (1.2) engine has 55kW, and the TwinPort (Z12XE P) version engine has 59kW of horsepower. How does it work? Why does it work?

What does Twinport stand for? 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. At full throttle all ports are open ensuring no loss of output. Where is Twinport?…