Simon, while we've got you hooked on this subject laugh

Going back to my original question, do you know what the fundamental differences are between the S1 and S2 engines.

We know the Jag version of the 3.0 Litre Duratec has quite a few differences such as VVT, variable inlet tract and bucket followers etc but I'm struggling to see a big difference between the Mondeo S1 engine and the S2 Escape engine.

I think the cams might be slightly different and the derating of the S2 is, I think, by and large down to increased emissions demand by re-mapping to suit the intended US market.

However, I can't see a major difference in the "architecture" of the engines and the re-mapping that Williams did on my S2 engine easily bought it back to the S1 power rating.

I think both engines were built at the Cleveland Ohio Ford engine plant.

To quote Jon, "am I close Simon"


Bob

2009 Black Roadster
1999 4/4 2 litre Zetec