4G93 Videos
Modified 4G93 Inlet Port Velocities
Shows the change in dynamic pressure on my home made pitot tube (biro ink tube) around a modified 4G93 inlet port. Note virtually no pressure at exit of SSR and the shadow cast by the valve guide
Author: purpledogwalkwalk; Tags: 4g93 cylinder head inlet port velocities
Standard 4G93 Inlet Port Velocities
Shows the change in dynamic pressure on my home made pitot tube (biro ink tube) around a standard 4G93 inlet port. Note virtually no pressure at exit of SSR and the shadow cast by the valve guide
Author: purpledogwalkwalk; Tags: 4g93 cylinder head inlet port velocities
Blow Through Test of Modified 4G93 Proton Cyl Head
Blow through test on a Proton 4G93 DOHC cylinder head. Modified inlet ports. The idea was to look for vortices. It doesn't look like vortices are present. Note that the shape of the inlet manifold seems to impart a transverse component to the flows.
Author: purpledogwalkwalk; Tags: 4G93 16v DOHC Modified Cyl Head Blow Through Test
Blow Through Test of Standard 4G93 Proton Cyl Head
Blow through test on a Proton 4G93 DOHC cylinder head. Standard inlet ports. The idea was to look for vortices. It doesn't look like vortices are present. Note that both threads are tethered at the same place on each side of the splitter but they emerge from the port in very different places.
Author: purpledogwalkwalk; Tags: 4G93 16v DOHC Standard Cyl Head Blow Through Test
Solution GDI 4G93 engine idle issues
More info here! If your problem is of another nature, I can't be of any help. My experience with cars starts and ends (?) here. Sorry. Idle problems on the GDI-engine is in several cases due to an permanent magnet coming loose inside the electromagnet-motor on the throttle body. The loose magnet gets in the way and the flow damper can't work normally. The symptoms for this is erratic reving or idle, you might feel that the car jumps (kangaroos) in low revs - especially when the engine is ...
Author: 4905354; Tags: GDI 4G93 Throttle body solution mitsubishi carisma engine idle
