I Can't say I'm sure, but looking at the Xona Rotor 10569S as the modern equivalent, that housing is smaller than this one. This housing's inlet vband outer diameter is 3.8 inches. 4.5 inches on the turbine discharge vband OD.

FP GT4205HTA Turbo with stainless steel Tial vband turbine housing. GT42R turbine, 76/105mm billet compressor. Good for 115-120 lbs/min and ~1200 hp. In great shape. ~3300 dollar turbo new.

Andrew always gets the best shots! Thanks Kev! Your photo is pretty gnarly too!

Definitely twice at least, but I think it is the third. Thanks to the photographers that somehow make my car look good.

Ordered! That cover photo is insane.

Shootout update, went 7.93 at 172 without nitrous and 7.58 at 178 with a 100 shot. 4.86 at 144 in the 8th, 1.111 60 foot. I'm pretty happy with that!

My current 62.9mm Xona Rotor is definitely better than the similar but older 3586HTA, having run 7.58 on that thing in a t3 housing. To compare non nitrous ETs on both turbos my best on the 3586 was a 8.3x and on the XR version 7.93. Not a good...