Thanks Dave, all very interesting as I ended up with 2 stock hitachi turbos for $120. None have any restriction that I can see in the oil feed line unless there is a restriction where it leaves the block supply point. Your install is very interesting as with my renesis I had to chop up the stock manifold (twice) to get the turbo to fit. My turbo is upside down to yours which appears simpler as the intake is forward and the exhaust is backwards. The truth will be if I ever get all to fit. The water pump had to go along with the water fittings (thermostat housings) etc . Had already mad the decision to go electric pump, so that allowed me to put the throttle body right where the housing and old pump outlets were. Still got to fit the pump somewhere, so not rejoicing yet,
Your water supply seems to come from a stock fitting on the block?? Not standard on the renesis, so more adaptation I suspect.
Neil.
From: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Saturday, July 25, 2020 3:15 AM
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: [FlyRotary] Re: Todd and Dave,
Hi Niel. For the first few years I had a 1/8 hole drilled in a restrictor plate. Later I tried it without any restriction except the distance of -4 hose and a remote oil shut-off valve that provides a little resistance. As long as the return line is adequate, that seems to be the best solution for me.
The outlet of my intercooler does just what you describe. I still think it is a good plan. Fabricated my intercooler mounts from 1/4 inch chromoly tube to put it exactly where I wanted. Same with oil cooler.
Gents
what size restriction did you put into the oil line feeding the turbo? I assume it is just a small hole drilled into the feeder line? Many interesting times trying to fit even half the junk under the cowl. Just bought as second intercooler as the first similar to the stock RX7 intercooler had no hope, and am trying to get the outlet from the cooler to blow over the turbo and manifold, to cool same to some degree. Interesting to say the least,
Neil.