fair enough, 1.7 60ft is pretty impressive! i just had visions of it being a slag off the line, seen a cossie powered caterham launch and it was all over the place through 1st and 2nd gear.

the cams are a totally different breed of their own then? i know the S3 cams fit the S1/2 heads so obviously they cant fit the 170 head. are they bugger or small in the 170 head?

how does the variable cam timing system work on these then? is it just a signal from the ECU at xxxxrpm that controls it?

sorry for all the questions but you seem like a knowledgable bloke and nobody else ive spoken to knows much about these engines!