i have driven charades with H22a.... gari 3 gears tak wheel spin main he rehti hey, and it requires lots of alteration. where as i have put D15b in my charade and it just required the mounting alteration and nothing else, i had a drag with my friend's H22s charade and in 2 gears i was ahead of it, because i had more traction and hence i was faster, H22a charade passed me in his 3rd end.
4efte is better option if you love turbo, and can maintain a turbo setup and afford the petrol and afford the mechanic, and afford the rapid oil change....and afford the head ache which comes with the turbo setup..