@Ghuncha
1595 cc
Engine= 4G61T (turbo)
158 hp (117.68 kw) / 6000 rpm
torque= 22.5 kg*m (220.65 N*m) / 2500 rpm
Engine type Serial 4 cylinder DOHC16 valve turbo
Turbocharger Turbo
Compression ratio 8
Bore, mm 82.3
Stroke, mm 75
you wont be feeling little diffrence for changing the engine from 61 to 63,
There will be a huge diffrence, i never new that 61t is that slow on stock conditions,
As 4g63t is 275 hp with 260 ft/punds of torque,
almost 120 hp gain on just stock condition,
@Hash4u.
the 4g61t engines 0-100 timing come near to 10 sec. on stock condition, 
thats slow,
but "Weight is an Enemy"
Thanks,
Salman