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Added a pump and oil filter. Just adding the pump, lines and filter turning it on drops oil temperature and it levels off 20f cooler. I'm going to say it needs a cooler.
Also I was getting dirt settling on the engravings on the oil dipstick. After running for maybe 2 hours with a Royal purple oil filter the inside of the engine is as clean as a watch.
I'm thinking about going to a predator 459cc and a 5 or 5.5gpm pump and keep the 4gpm pump as a backup and turn the hot gx390 back into an air compressor.
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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