Re:RX7 Twin turbo
 

Check to make sure there are no cracks between the turbine housing outlets because that is common. If you ever have to rebuild these you should stay away from the Turbo City rebuild kits because they are straight up ass and most who have used them report smoking from the turbos within weeks if not days after rebuild. I'm still not so sure you will get these operating sequentially although I'm rooting for ya! Keep us updated ;)