First track outing with EFI conversion930

[Jim2]

Some of you may have followed my thread covering my 930 EFI conversion. The car has been running since the beginning of September and I took it on the track today for the first time.

I found my injectors are maxed out so I'll be replacing them, but in the mean time I'm wondering if anyone knows of a Porsche or otherwise OEM fuel press regulators which runs higher than 40 psi. (I don't want to buy an aftermarket adjustable one yet)

Here is a review of today:
I have the car tuned to sustain mid/high 12 AFRs based on wideband sensor and 91 octane pump fuel. On the track I had to lean out the mid range as I was seeing some 11s. Once corrected it ran consistent mid 12s across the board.

To my surprise the 42 lb injectors I installed are maxed out, running at just over 90% duty cycle. I'm temporarily running without an intercooler and my duty cycle will only get higher once the intercooler is completed. Also, I'm only at 10 PSI yet I plan on running 1 bar as I did when the car was still CIS. Calculated HP today shows about 400 based on six 42lb injectors at 0.55lbs fuel consumption per HP at 90% duty cycle. So, I need bigger injectors, or perhaps a higher pressure regulator will do if I don't up the boost.

My plans to be "conservative" have been thwarted, 10psi - good 15 will be lots BETTER.

EFI conversion thread here:
930 EFI Conversion in process