Subject: Re: 2L engine problem
Colin, thank you for your reaction. You say that you might "change the camshafts back" - my question is which are you using now? I presume it's flat lobed ones; did your engine ever (or still) suffer from the petrol spit-back problem?
As I wrote earlier, with the flat lobed shafts I got this problem of petrol spit-back, which of course resulted in much fuel consumption, and indeed a very inefficient engine.
If 100% of the petrol is properly burnt it will enhance the performance and efficiency. I think that changing to round-lobed camshafts will make a world of difference.