hello i have a 95 tt engine i just rebuilt perfect compression. My mods include the gt 600r turbo kit and i just purchased the new style nismo 555cc aka the 615cc injectors i have a single pop intake i am going to a 3inch exhaust and i have the jwt ecu with the correct fuel maps for the 615cc. I do not have stock internals but i was wondering where can i be say with the boost cranking it up to i should be perfectly safe around 15 pounds correct. I know stock pistons fail around 500 and i was wondering where that falls around 17 18 psi or is that more. Any help would be greatly appreciated.