[pgfpro]

Lots of interesting work going on there.

It's pretty cool to see another person's approach to making the ICE more fuel efficient. I share a few porting mods that you have done. Mine setup is more about directing the fuel from the injector to my pre-chamber for a lean-burn stratified charge. I also incorporate swirl and tumble at low rpm air velocity 2500 to 3000rpm with one of the intake valves opening point delayed.

On my setup the engine is the most efficient at very light load 2500 to 3000rpm with lean A/F ratio's. To clarify this, it's at -1 inch/hg to 1psi of boost while running around 25 to 30 A/F. On the same stock engine in the same car, it would be around 17" inch/hg with a 14.7 A/F ratio.

At light load its around 5psi of boost and 20:1 A/F. Then at high load it's at 30psi with a A/F ratio avg. of 13.5 to 14.5.

The downside of my setup is it's not driver friendly and the average person would hate driving it because of the very lean hole in the light load part of the map. It requires a down shift to get the rpm past 3200rpm and out of the lean burn hole.

I need to make another video of it since it's been a while.