Cylinder head ok, bent a few vavles.
Thereafter change timing belt every 2 to 3 years even though mileage not reached yet.....lol
Must have given you quite a fright. What was the symptoms when it happened and what did you do immediately?
Maybe once every 3 years is okay. Since timing belt kit not very expensive.
The new iVTEC in higher performance Honda has a more linear power delivery compared to the previous SiR engines where it hits you like a turbo kick in. The new Civic Turbo has a lot of potential and it runs a lot more efficient compared to the old one. My personal perspective.
The old ones have more aggressive cam setup during VTEC engagement. For fun factor, I think that is good but not good for efficiency and comfort during normal use. New Civic Turbo have potential but the main bottleneck would be the CVT gearbox... I heard China market can opt for a 6 speed manual... Feels like the manual went to the wrong market...