I'm always wary of the trade off situation when altering cam profiles particularly in an engine with the broad torque characteristics as the current 1050cc S3. The latest S3 bore vs stroke ratio and compression speaks volumes for the intended torque/power/revs balance so maybe the current cam profiles are well suited to a broad usage range.
My approach is more focussed on the understanding that -
"Too much change amounts to rejection". If an engine can be significantly improved by optimising inlet and exhaust gas flow and maybe a little dailling of advance/retard of cams plus good fuel control then perhaps Stage 1 is reached. Its been my experience that the most bang for your buck is gained at Stage 1. The law of diminishing returns is invariably an expensive experience.
I'm sure there is another 10kw and torque gains to be had fairly easily.
Cheers guys - I look forward to your feedback.
[ This message was edited by: Lenz on 2005-10-02 03:37 ]