I am currently running 18psi through my RB20 with a Gt2530 day in and day out, and it runs fine, beautiful actually.
I was wondering what the theoretical boost limits would be for a standard internal RB20, and this model of turbo. Saw some of the guys have been running 21psi, 22psi with similar setups.
Running a Wolf3d v4 and eboost.
The engine's history is fairly uncertain, but it has been running a consistent 18psi for at least the last 2 years, and the car has been drifted and thrashed fairly hard, although it runs fine currently.
On a cold morning it is a bit spluttery and misfirey, but once she is going, runs fine.
Obviously 18psi is not what you would call 'safe' for a reasonably old engine, but would like some advice.