Hmmm well okay, speaking of internals I have a quick question:
People seem to say that aluminum connecting rods are not good because aluminum has bad fatigue resistance, but virtually all pistons are aluminum, and people don't seem concerned about replacing those? Aluminum conrods would save a lot of weight over steel ones if done right...and allow for higher revs
And yea 2GR-FSE has no TGVs, they were able to induce tumble with the injector or something.
By geometry, what do you mean exactly? (sorry if this is a retarded question)