i'm running a b18b with a small greddy turbo right now. the turbo is the td04 greddy turbo thats for the sohc motors. on stock internals with this small turbo, how many lbs of boost can i run safely?

if you can run 10psi safely with a t3/t4 turbo, which is bigger than mine, wouldn't i be able to run a little more than 10 psi on my motor with my small turbo? i would figure me running about 6-7psi with my turbo is like somebody running 4psi with a bigger turbo.

what do you guys think?

 

With that small of a turbo on proper tuning u could run 12-14 psi w/ no prob..

 

A small turbo doesn't allow you to run any more boost than a large one does, you can't assume that. If it's flowing less air because it is less efficient, that means that the charge air is going to be hotter, which means you can run LESS boost.