OIL Pressure Question

[03GST]

As far as I know oil pressure should be approx 10 PSI per 1000 RPMS and since I Put in my turbo in my pressure seems to be higher. At Idle when warm I am at 25 PSI and at 3000 RPM I am at 75 PSI. I am not sure if it’s the gauge but I had a mechanical one in there and it was the same but it started to leak so I went to an electric one. My car is a 03 Eclipse GS. As far as I can think the relevant mods on my car are a turbo and a sandwich place which I hook the oil cooling lines for my turbo and my sensor for my gauge. I change my oil every 3 mos or so. Also I have tried different weights in oil as well.

Any and all help is greatly appreciated.