if u talking about rare engine, there is 1.3 soch (MVV) Vertical vortex from mitsu.power full engine lor...hard to find. power is around 95hp stock. highly rev engine. i heard r3 using this engine for merdeka endurance for their satria r3.
btw...if u wan n/a, then go for mivec 1.6(4g92) or 1.5(4g91 doch).all depend on your budget and power that u wan.
if force induction, u can choose mirage(1.6) 4g61,evo/vr4(2.0) 4g63 or gsr(1.8) 4g93t.
but if i were u, i will choose mivec la...then rojak with 1.8blok.so it will become mivec 1.8! ahahaha!!!! if u wan 1.8 blok with custom form, u can pm me. ehehehe!!!
MVV Engine
In 1992, Mitsubishi began producing the MVV (Mitsubishi Vertical Vortex) engine. The lean-burn MVV engine can achieve complete combustion with an air-fuel ratio as high as 25:1, whereas conventional engines require 14.7:1. The result is 13% better fuel economy at 40km/h over a conventional engine powered vehicle. This 13% improved fuel economy means lower CO2 emissions, a major factor in global warming.
The MVV engine utilizes a twin intake port design to induce vertical vortices inside the cylinder. The result is a barrel pattern of stratification ensuring in the process that the influxes from the two intake ports do not mix together until the end of the compression stroke. The design of the compression chamber ensures the total collapse and transformation into small-scale turbulence of the vertical vortices at the end of the compression stroke. The turbulence and the mixture stratification provide accelerated and stable combustion.
The MVV engine is equipped on some Minica (Towny) and Libero (Lancer Station Wagon) models in Japan.