RB20 -red top engine with silver top turbo...
just wondering if anyone has done this mod, and wondering if it is worthwhile... ????
because i can get one real cheap.
My turbo is in perfect nic, it just looses 4psi by the time it hits 6,000rpm (maybe this is a wastegate prb?)
i was told that stock RB20 silver top turbos will hold their boost until about 6,000rpm....true????