The I-dsi version has two valve thus promoting high swirl in the chamber so torque will be slightly higher but will taper off sooner than the vtec version that uses 4 valves to help widen the powerband.

 

Hi guys.. Im also building a track car.. 😄 I'll learn a lot from you guys.. 😄
Right now i only have a stock gd3 L15, but im planning to get a GE8 1.3 m/t then import a GE8 RS engine with a 6speed m/ from japant.. Then from there increase HP by bolt on parts.. Hope you guys can help me, i will very much appreciate it..

 

Hi guys, do you know, if an L15B7 cylinder head, can fit in a L15A7 block?