Why 1.6gti sunny?he got maybe 110hp,maybe 120hp...to do that,you'll need a lot of modification...Therefore,i recommend a Fiat/lancia motors...SOHC,of DOHC,its your choise...Why,that,you ask?because,with little modifications,you have 1.6 Sohc/Dohc motor with stock 90/105hp...then you just have to...