beater,
if you take water from below therm and you want it to flow back to head, it won't flow. same pressure both sides. maybe find a t-stat housing that has a fittint in it above stat. use that to return to.
the oil to the turbo you have mentioned is a good one. you have no other choices. it will not rob much oil. be sure to support the line so as to not vibrate and cause a failure.
the temp sender in the intake will be cooler than the engine water temp. put it in the head hole between #1 and 2.
tom

Inliner Member 1716
65 Chevelle Wagon and 41 Hudson Pickup
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