Tuning Manual boost controller?

[Beesley23]

Been offered one, off punto gt. But what is safe boost levels I can take my tjet to on standard turbo? And will it fit?
been told mods can make a difference so (straight though zurst, k&n, k&n breather on standard dump valve)
I also have a boost gauge so will be taking notes

 

[benpunto]

hi there, im running a manual boost controller, and im running 22psi on peak and 20psi on normal load, and it makes it respond soo much better

 

[Beesley23]

Thanks mate is that on the standard turbo? It's running 1bar at the min