View Single Post
  #9  
Old 10-10-2006, 09:51 AM
Ron H's Avatar
Ron H Ron H is offline
Ultimate Warrior
 
Join Date: Jan 2005
Location: Great White North
Posts: 5,807
Default

Quote:
Originally Posted by Ron H
Is it advised to have a 12.7 to 1 CR for 2235m or 7333' with 92 octane fuel?No
11 to 1 for aluminum and 10 to 1 for steel heads. You may get away with a bit more. 11.5, 10.5.
It is important to consider the camshaft being used as the dynamic CR can be higher or lower than static.
This is your answer if running 92 octane

__________________
68 Firebird
Are you running with the wind or breaking it?