High IDCs?

[screwdgie]

Well I installed a 190 walbro this weekend. I drove the car around a bit while logging.
I have an issue with boost creep, boost is set to 10 psi yet creeps to 18-19 at 6k then drops back to 17ish by redline.

I noticed my injector duty cycles are much higher than they should be. Even when I short shift by the time boost reaches 16-17 psi (which is where I will eventually set it to with my setup right now), I have no knock, which is great, yet my IDC's are too high. At like 5500 rpm in 2nd and 3rd, my IDC's are at like 105-108%?? I know with the boost I am running and on the stock 14b, my IDC's should not be that high.

What could be causing me to have such high duty cycles?? Boost leaks? I am pretty sure I have at least one on my intercooler outlet pipe.

Thanks,
Shane

 

[steve]

I noticed my injector duty cycles are much higher than they should be. Even when I short shift by the time boost reaches 16-17 psi (which is where I will eventually set it to with my setup right now), I have no knock, which is great, yet my IDC's are too high. At like 5500 rpm in 2nd and 3rd, my IDC's are at like 105-108%?? I know with the boost I am running and on the stock 14b, my IDC's should not be that high.

What could be causing me to have such high duty cycles?? Boost leaks?

Boost leaks will increase your IDC but it's still possible you for to be running out of injector @ 16 psi on the 14B.

Steve