Stock air intake KR1-FE?

[Doix]

Hi forum,

As a newbee to this forum and to Toyota I wondered about the stock air intake of the engine in my car. My 2007 Yaris has a 3-cylindre engine and is exactly the same as placed in the Aygo:

http://www.thetruthaboutcars.com/wp-...is_engine2.jpg


From earlier experience I know that the people in America, UK and Germany are more carminded than in my homecountry (The Netherlands) and that some owners try and find out more than possible on their own car, so I hope some owners with knowledge can help me with the following:

As can be seen on the picture the engine has a very small tube to inhale air and it is also placed abeam to the airflow. When inhaled the air needs to traffic through a small pipe, than upwards through a paper filter, than 180 degrees to the thottle valve. In my humble opinion this could me more optimal, also justified by the following experiences by a Dutch Aygo owner:

http://www.verboom.n...ngle=20100331.0

http://www.verboom.n...0826/index.html

Open air intakes do have the problem that those suck warm air from the engine bay and of course tubes and pipes can handle this but corners and bends do have a negative impact on the airflow. So what can be done to optimize the air intake on a KR1-FE engine?

Anyone the same opinion and or an optimized air intake on their Yaris?

Grtz,


Aad ~ Doix