What happened to the guy who started this thread. It seemed like his setup worked quite well. I read through all 14 pages and he vanished before dynoing the finished product. I've wondered about the 35/40 hybrid to Hx55 twins for a towing setup with around 50lbs of boost. 10 lbs of boost over an Hx40 with fast spool up and low egt sounds like what I'm hoping for with the PDR towing twin set up that is sitting on my shop floor right now. Is the air coming out of the Hx55 that much hotter than the Ht3b?
RonA
RonA