HFS4 on 996tt

[zx9rmania]

Hi all,

car is 996tt with gt30s turbos, upgrade fuel system 80cc injectors and trying to run in the end about 1.6 bar or more.

Car is running a bit rich even without meth, lambda set point is 0.8 and actual values are 0.78-0.8 most of the time

i tried with W60/M40 on defaul mapping (IDC) and after that W45/M55 on a custom mapping (MPS) and the same result, i see lambda going down to 0.73, engine load gets very high and engine is coughing

I am told i need to start injecting by 7 psi and full at 15 psi, any thoughts ?

thanks a lot

Fadi