Hi,
i have a Honda d16 y8
And i have installed Y.C.P high pressure 75.5 pistons

I wanted to know if i can boost my engine
and how much bar/psi can i boost it with

 

You know... there's a reason MOST people boost with low compression pistons (it starts with a S and ends with an afety). No one here is going to give you an exact/correct answer to this question. My suggestion is that you learn what detonation and preignition is and that the likelihood of those two occurring is directly related to the compression and the boost. Access to quality fuel is going to dictate how hard you can run the car. I'm sure someone else will chime in on the rest of your build, but the fueling (and access to quality fuel) will be the most critical component.

 

Depends on which turbo, fuel and engine modifications are already done.

^^^^ Do this