Air Flow in the Mitsubishi 4G93 GDI engine
tumble & swirl
http://web1.mitsubishi-motors.co.jp/inter/technology/GDIEC/gdi_ti/05_1.html

3 & 4 valve clockwise tumble
http://web1.mitsubishi-motors.co.jp/inter/technology/GDIEC/gdi_ti/05_2.html

Direct injection vs Conventional injection
http://web1.mitsubishi-motors.co.jp/inter/technology/GDIEC/gdi_ti/05_3.html

Output modes
http://web1.mitsubishi-motors.co.jp/inter/technology/GDIEC/gdi_ti/07_1.html

GDI vs MPI
http://web1.mitsubishi-motors.co.jp/inter/technology/GDIEC/gdi_ti/07_2.html

Spray modes
http://web1.mitsubishi-motors.co.jp/inter/technology/GDIEC/gdi_ti/07_3.html