I just bought a HKS T04Z. I have read many posts on the turbine needing 1.0 or higher. I bought mine with a 0.81 turbine for faster spool time. I engine has stock ports. I'm only looking to get over the 350 HP mark at 15 PSI. No looking to get at the 500+ HP mark. If anybody has any information on HP numbers using a HKS T04Z with 0.81 turbine on a rotary engine, please let me know. Thanks.

 

i don't think i've seen a t04Z .84 dyno, but people run 60-1's with .84 housings all the time, 350hp should happen under 15psi