View Single Post
Old 06-05-2011, 09:59 PM   #7 (permalink)
gone-ot walking...
Join Date: Jul 2009
Location: .
Posts: 6,190
Thanks: 179
Thanked 1,525 Times in 1,126 Posts
Originally Posted by phord View Post
...if some potrion is clean put dimples in there (clean means fuel wash condition exist ) dimpling restores boundary layer action and improves burn efficiency.
...+1, but do not make "sharp-edge" dimples as they can become "hot-spots" leading to pre-ignition!
  Reply With Quote