Originally posted by OhSigmaChi:
The US spec Zetec has less HP due to it's Lower CR 9.6:1 V/S the Euro/Aussie spec Zetec with 10:1. If the CR is different it is highly likely there is a difference in thier displacement. Be it 11cc or 1.
Probably not, actually... a different head would affect the compression, but would not affect the bore x stroke. To do that you'd need either a different block & pistons, or a different crankshaft & rods. I don't think anybody's changed those.
But then, off the top of my head I seem to remember a figure closer to 1950cc than to 1990...
