View Single Post
  #13 (permalink)  
Old 12-22-2010, 11:13 AM
olddog olddog is offline
CC Member
Visit my Photo Gallery

 
Join Date: May 2006
Location: St. Louisville, Oh
Cobra Make, Engine: A&C 67 427 cobra SB
Posts: 2,445
Not Ranked     
Default

Quote:
Originally Posted by Barry_R View Post
Low RPM and transient throttle behavior in street engines are actually worse for a gapless strategy. The variations in ring loading make them float in the groove unsettling the sealing and bringing oil and combustion residue into the chamber. Not good for emissions.
I don't understand - my lack of knowledge, I'm sure.

Ring loading variations caused by cylinder pressure changing with the throttle position?

or

Gap-less rings have a variation in loading due to their nature/design?
Reply With Quote