So it seemed that rather than a leak it was air that was pushing through the post turbo injectors and managing to empty the lines through the pre compressor injector. This gave a delay in injection delivery so temps were seen spiking upon first application in the logs above.
This was rectified by fitting a check valve just before the pre compressor injector.
A D05 injector was also fitted between turbo and dump valve at this point.
The next run went very well..helped along by low ambient temps (16c) and a nice dry road allowing me to hit max RPM and hold the throttle wide open for some time, temps were back in the low 40's at max RPM and stayed in the 30c region at lower RPM's which is almost exactly what I aimed to get at the beginning of this project
The initial spike in inlet temps we saw in the last log was absent from the data, the check valve doing its job!
The car didn't bog or misfire, nice clean power although fueling is (as expected) still pig rich and requires some remapping to clear up.
I thought I had saved the format from the last log I done but for some reason it reverted back to normal so I have done several screenshots.
Initial application of throttle from 2k through to approx 6750rpm (engine limiter), 42c max inlet temp recorded
Into third, max inlet temp 43c at 6750rpm
6750rpm in 4th gear shows 44c
The other two high RPM peaks further over to the right again max out at 41/42c
I may add a touch more WM mix for the next log.