t3/4 turbo help

[DLuded]

i am about to buy a TO4E V trim compressor wheel and a r33 compressor housing and about to machine it to fit

i was about to attach this to the standard rb20 exhaust housing and wheel but the rb20 exhaust wheel is ceramic (i think)

i was just wondering are there any stock turbos out that that have steel exhaust wheel so i can run up to 20psi? im not looking for anything too big because i want the turbo to be responsive on my rb20

any thoughts?

[1598cc]

rx7

[DLuded]

i read the series 4 and up have them

anyone have any idea how big the exhaust wheel is? dont want it to be too big

[1598cc]

bout same size as a t4 wheel.. bore your exhaust housing out then chuck a t4 compressor wheel and itll be mint.. thats what im doing.