Quote:
Originally Posted by BioPOWER
The EGR is only open at idle, so it cannot affect performance (eg. turbo boost) while driving.
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As I understand it, the EGR is closed at idle, and full boost, but open at moderate boost. At idle, the engine is very sensitive to not getting enough air and combustion temperatures are not all that high anyway. At high boost, you end up having to fight the boosted intake pressure to get the exhaust gasses into the intake airstream, robbing the system of too much power if you try.
Have I had it wrong all this time?
Venturi is apparently the way to go with this stuff, but it's apparently difficult to get it to fit under the hood without causing a major intake restriction