Ford Focus Forum, Ford Focus ST Forum - View Single Post - 2012...Magnaflow good choice?
View Single Post
Old 01-30-2013, 07:36 PM   #29
Focus Enthusiast
Join Date: Oct 2012
Fan#: 105085
Location: Davenport, FL
What I Drive: 2012 candy blue manual SE

Posts: 54
FF Reputation: 1 cobrajet429 Good Standing Member
Buy-Sell-Trade Rating: (0)
Originally Posted by danno428cj View Post
Back pressue is not a factor in direct injection engines, as fuel charge scavenging can not happen, becasue the fuel charge is delivered at full compresion.
You want too still cram as much air as possible with a scavenging affect. Air is still a factor in power making.
cobrajet429 is offline  
    Reply With Quote