i have searched and no leads yet.

i have the greddy 15g kit on the y8 sohc. boost is set at 8psi but it spikes 10psi then drops to 8psi then around 6000rpms the boost drops to 6psi. I have checked for boost leaks and cant figure this out. i was told from the person i bought the car from and the person who tuned it that this kit does this. my vacuum line to the gate is coming from the compressor housing. so i have no idea why its does this. is it suppose to do this. also what is the daily driving boost limit on this motor. i was at 12psi but got scared when it studdered around 5800rpms so i set it back down to 8psi.

 

bump anyone know