Firstly - Simon - What a fantasitc little write up on ECUs! Top top write up!

That one came up whilst I was still posting!
Chip - Thanks mate

- those clarifications are important, as it allows anyone else to see where my understanding is erroneous!
As far as my ability to learn is concerned - I am a great believer that the ability of an individual to learn is far more dependent on those that are teaching - so thanks to you and to all others for taking the time!
So I have two ways to go now :-
1. further into cam timing and shaping (I will need to visit this again at some point)
2. I read an interesting article in EVO about the new Koenigseg (add the necessary letters as required) - which is designed to run on BioEthanol. I would like to discuss the pros and cons of alternative fuels in our high power engine
Your choice guys
JJ