as i said before i ran mine on 14psi....coz i hardly hit limiter everywhere.....the car ran on that setup for about 2 years without a problem.....till i upgraded the turbine
make sure though you are putting 14psi through a front mount intercooler instead of those poxy little side mount coolers mate
plus i had other mods to go with it like fuel pump, coilpacks etc and a full tune and it made 214 odd rwkw on a el stocko turbo