Feel free to correct me here, as I am sure I am missing something. (but that’s why I ask
)
From what I understand, the main purpose of EGR is to lower combustion temperatures, (assumedly by lowering intake temperatures based on the fact that diesel EGRs have a heat exchanger and they route into the intake), and providing the capability to lean out the mixture. However, why wouldn’t allowing more air to come in through the regular intake do the same thing, only more effectively? And, wouldn't putting hot exhaust gasses in the intake increase it's temperature, causing the rest of the intake air to be less dense, and thus causing a power drain?
Also, bassed on the idea that lower EGR temps increase MPG, would installing some aftermarket EGR cooler on our cars help at all?
Thanks.
)From what I understand, the main purpose of EGR is to lower combustion temperatures, (assumedly by lowering intake temperatures based on the fact that diesel EGRs have a heat exchanger and they route into the intake), and providing the capability to lean out the mixture. However, why wouldn’t allowing more air to come in through the regular intake do the same thing, only more effectively? And, wouldn't putting hot exhaust gasses in the intake increase it's temperature, causing the rest of the intake air to be less dense, and thus causing a power drain?
Also, bassed on the idea that lower EGR temps increase MPG, would installing some aftermarket EGR cooler on our cars help at all?
Thanks.
