actually i wun syaing i maxed out also la. u see, toyota normally plp use either supercharged or 20V. but both were 1.6l engine.
now on toyota celica which do have 1.8l engine on some country. so its enable us to hybrid the engine block over. its almost 99% compatible with 1.6l with little stuff need to mod around. basically it carry longer conrod with the block 3mm higher thn 1.6l, however the piston do share the same dia 81mm.
that why im saying its already maxed out. well side track here abit. RM1.3k for banana is worth investing provided its frm those performance tuner products like HKS, TOmei or so. At least thier stuff was flow test proven. but for toyota, there is no tuner ever come out with such product. yes, it can be locally made but does any local made with dyno flow proven?