Greetings guys! My rb25 build is nearing completion, and I need some opinions on what would be a safe level of boost to run on my factory fuel system/tune. I have a Precision 34/31E turbo that I know can easily surpass the factory injector capabilities, so I was wondering what would be the strongest spring I could put into my waste gate that wouldn't be risking any damages? I have a wideband to reference but I'm not familiar with the limitations of the factory tune on the r33 ecu. I am also running a z32 MAF. I planning on putting just an 8psi spring In, until I have the money to have it dyno tuned and I plug the haltech in and put in the 740cc injectors unless y'all think I would be okay with more boost than that.
Thanks for your time!!.