the exhaust wheel is 53.8mm same as all the 2860Rs,71r & 76r.
The exhaust housing came with a .63 (which all 3 can have) i've swapped it for a .84. But yeah its just a standard T28 exhaust flanage.

Front is the a/r60 that the Nissian T28s come out with, including the identical flange to bolt on to the sr20, just that the inside is machined out to accomodate the 52.9mm inducer wheel.

Quote Originally Posted by FastFwd View Post
Very very confusing limbo...i know how it sucks i was trying to figure mine out for a while but i finally got it in the end. yer I dont think it will be an RS with 52.9mm inducer. What Flange is exhaust and manifold sides? T25/T2 with 0.63 Right?

Have you put it on your car yet? the 76r will spool alot later...if its on the car whats the rpm spoolage etc?