If it was TE-63 Turbo for SyTy, it would usually be a GN turbo with a 3 to 4 bolt adapter. I am guessing Pete is Turbo Guru :)
On the flip side, the original poster seems to be leaving out info. If you really knew Turbo he would also know that a PTE52 is not a 52mm Turbo (60-1 59mm...