French OPEL ASTRA opc LHU engine , lack of injection with e85 + turbo upgrade

Hello , here is my first message here hoping to find help I am French so forgive me the translation don't hesitate to tell me if you don't understand, I'll try again.

i have OPEL Astra J opc LHU engine (a20nft)
forged piston/rod assembly and turbo upgrade (capable of 480hp)

the project is on e85, I've already managed to develop another high pressure pump, increasing the original piston from 8.9mm to 11.8mm

which gives me about 340/350hp full e85, at about 190Bar

above this power my injection time exceeds 6ms at 6000rpm and I have missed micro-cuts, so I have 2 questions:
-I think there is a parameter to start the injection earlier in degr.
-Do you know of a range of injectors that are much larger than the original and compatible?

thanks in advance

You can direct message me in French if that's easier to you.

Do you have a log and tune file to post? It would be much easier to diagnose what's wrong.

Edit:

You are probably looking for "End of injection" and "Start of injection" tables, like this

Attachment 149900

Hi, I'm sorry I didn't see your reply.
I looked the same day and didn't see the next day
I actually touched the SOI base, it's much better

are you french?

Nah, i'm from Croatia, but i understand French.

Did you think about upgrading the HPFP?

yes yes i have 245bar after 6000rpm