Ive got a small turbo escort cosworth, stage 1 chip with k&n panel filter and stainless pipercross exhaust with no cats.

Its just had a top end rebuild with a group a head gasket. The turbo has been rebuilt with 360 deg bearing.

Now its all back together on the road I have it booked in to get setup correctly in a couple of weeks.

I need to set the boost to a reasonably safe level until it gets done properly. I think that stage 1 should hold around 14 psi?? So im thinking about 12 psi should be ok??

Out of interest anybody know the standard level?