I don't know, But when I read my GM manual, they use it to to cool combustion to reduce NOx emissions, they say it cools the fire enough to change the NOx emissions and is used only at higher throttle settings.
They say the exhaust gas is inert and thus displaces (reduces) available oxygen, with the mixture control unchanged, wouldn't that really richen the O2/fuel ratio? Isin't richer farther from (and cooler than) detonation rather than closer? Of course on a EFI setup the mixture would automaticaly change to match available oxygen, which has been reduced, so fuel delivery would be reduced to match, and thus output power is reduced. The engine is starved for oxygen, but not for intake gasses. In any case, what I am looking for here is an automatic power reduction and this might provide one. If triggering the EGR system reduced power automaticaly I have my safety against overboost, and if it lights an idiot light at the same time, I'll be reminded to throttle back. ALso note I suggested running the exhaust gasses through 4 or 5 feet of 1/2" id tubing to help cool the gasses. That'd pull a few hundred degrees off of it. GM does not bother with that on my 350. jg On Mon, 2008-12-29 at 06:57 -0600, Mark Langford wrote: > Wouldn't routing hot exhaust gas into the intake lead to immediate > detonation? > > Mark Langford, Huntsville, AL > mail: N56ML "at" hiwaay.net > website: www.N56ML.com > > > _______________________________________ > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net > please see other KRnet info at http://www.krnet.org/info.html
