Hello,
At the beginning I would like to say hi everyone.
I have Opel Insignia with A20NFT engine (LHU). Several modifications are made:
EFR 6758
WGMOTORWORKS Camshafts (by Pipercams - fast road specs)
Stock HPFP
Stock injectors
AEM 340LPH LPFP
ZZP neutral balance shafts
Front mount intercooler (custom)
Custom intake with AEM filter
Custom MAF housing (3,25`` inside diameter)
Custom 3`` exhaust
And few things more (such as forged internals)
I am the owner of the car not tuner, so forgive me if I wrote something wrong. Below is a description of the problem I got from my tuner.
The problem is that the ECU does not allow more airflow and boost.
The attached program controls the boost in the open loop mode. We apply a high boost and engine torque, we control the boost from the BASE DC map. The problem is that something causes the ECU to close the throttle on boost above 1.6-1.7bar while the ebc valve duty cycle is correct (same values as in the BASE DC map).
The goal we want to achieve: around 450HP, target boost 1.9-2bar.
Hope anybody can help us on this.
Thanks, Konrad