Difficult to say really - I went on a RR day but everyones cars (Honda's across the board) failed to make expected power on the day (stock cars didn't come near stock figures ~20bhp down).
Wasn't really sure what to make of it but mine made 17bhp more than a looked after stock example on the day and was one of 2 or 3 cars that made stock power on the day (albeit with mods).
They are essentially B18C6's in a lower state of tune but with several notable differences. Mainly a different OBD loom and ECU, dual stage inlet manifold opposed to the single one on ITR's - butterflies open at 4500rpm, VTEC at 5800rpm I think. B18C6 had port and polish, higher compression, different cams and valve springs amongst other stuff.
Parts are transferable but to be honest I think you are much better off doing an engine swap or supercharging if you want more out of it.
Ah right, I see didn't know they had dual stage inlet manifolds, learn something new everyday haha.
Will look into it a little more, is it possible to strap a supercharger to the b18c4? Or would a whole engine swap be needed for it? I wouldn't look to get one as it's really costly, but curious to know.
And sorry for going off topic.



