Quote:
Originally Posted by Christ
Is the opposite of "Inert" just "ert"?
|
I derstand exactly what you mean.
Quote:
Originally Posted by pstrbrc
Ford used variable cam timing on some of the Zetecs (Contour, Cougar, ZX-2) to advance the exhaust timing in such a way that the exhaust stroke wasn't completely scavenged. They were able to use this instead of egr to meet nitrous standards. So how much the intake charge is diluted has much less to do with intake vacuum.
|
I think keeping exhaust gas in the cylinder via exhaust timing would reduce throttle losses even better than EGR does. Pardon the clumsy sentence (and there's a worse one coming) but wouldn't leaving exhaust gas in there, fully reduce the vacuum (see, I warned you) right from the start of the intake valve opening instead of a gradual reduction as EG dribbles in through the EGR valve?