Fixed Vane vs Variable Geometry Turbochargers...

[Unilevers]

16:1's are handy and new hardware is good and 14 though protrusion is good but honestly the stock stuff doesn't stand up for long past about 45-50 psi. it will do it for awhile but will fail in the end prematurely due to combustion pressures - the head bolts just fatigue and stretch and you lose your gasket crush.

my advice is if you want to go more and have it live be prepared to put some better bolts and maybe fire rings in it when it pops. but i have 2 trucks running around with the 4b on one and 4c on the other at high hp levels and have good results.

just a suggestion

...Puts on flame suit to protect from rawze......im sorry dont kill me rawze........