With the new head and cams fitted it was simply a case
of bolting on the inlet and exhaust, change the required
fuel settings in the ECU, along with a slightly revised
map, adjust the fuel pressure, and start the engine again.
Again the engine started first time, but this time I had
to get it running at fast idle of 2000rpm in order to reduce
the load on the lobes. This is where the closed loop function
of the ECU came in very handy. I was able to allow the ECU
to control the injector duration based on the wideband
sensor input, whilst I gave it a target voltage to achieve.
This meant all I had to do was wind the throttle stop up
to the rpm I wanted and let the ECU adjust the fuelling
to give me a slightly rich. Its cheating a bit, but
it certainly took the stress out of trying to get the engine
running well straight away for the cams. I let the engine
run for 20 minutes like this, and I continuously checked
around the car for leaks in the water, oil and the fuel
system but didnt find any.
That was it, after around 4 months of lots of hard work
and pretty much continuous learning on my part, the main
upgrade of the year was complete. All that remained now
was to get the car out on the road and some more learning,
this time about engine mapping.