Update:
Before heading up to RS Tuning, I thought id do a bit of fiddling and see if I could improve things.
So I thought Id move the air temp sensor. Normally these are mounted into the air filter, but as Im not running a filter with a back plate and wont be for a while, I thought id try a different route so I drilled into a trumpet and mounted the air temp sensor direct, so it can read the exact temperature of the air as it enters the head:
Excuse the cable tie, this was a temperary measure to see if it would work:
This, and the new lambda probes (thanks again Maynard!) had an interesting effect on the map, it made the car run rich at the bottom end and lean at the top, so Paul needed to do some changes, but I left with a much smoother looking map:
The power curve is getting to the point where you can near enough draw it with a ruler(apart from the usual dip where the car comes on cam), and the low end torque has improved, as well as the car pulling harder when going past 5000 rpm. It has also improved the fuel economy too, to the point of I was getting a genuine 43 mpg, which shows with the right setup a itb'd car can equal a standard inlet car
Next on the cards will be some further testing of this setup, until my next 'stage' (as I call it lol) will be ready for testing.
I need to work the filter a bit better, as it is still strangling power :
Paul is pretty happy with how the map is at the moment, next stage is to improve the throttle response, which is what the next stage will do, as well as hopfully netting a few more horses.
Once again I cannot say thank you enough to Paul at RS Tuning, he a leg-end and his mapping skills are mind blowing!