Originally Posted by
driven7
I see that there are several models of GT30.
one is the other gt3076r gt3071r
valve also external or internal.
which would be better for my spec? thanks
gt3076 is a 550hp+ turbo
gt3071r is 450-500hp turbo, 3 different exhaust housings to choose from, .63, .82 or 1.06. you want the .82
you want a internally gated one unless you want the headache of fitting a external wastergate. a guy on here runs the gt3071r with 2.5 bar boost, inlet cam, rs500 intercooler and gets 480hp & 474 ft/lb torque.