Quote:
Originally Posted by ConnClark
Its more effective at keeping the combustion gases cool and keeping energy losses to the cooling system down. One has to be careful not to over cool the EGR gases however. If the water molecules in the EGR condense the combustion energy must overcome the heat of vaporization which robs power and fuel economy.
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That's why the OEMs use engine coolant cooled EGR coolers.
The hot engine coolant isn't cool enough to condense the water out of the exhaust.
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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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