Posted by gmharris [71.105.35.249] on Sunday, January 05, 2014 at 22:51:41 :
In Reply to: Re: NOS compress rings - what's the difference? posted by don in nh [96.61.72.163] on Sunday, January 05, 2014 at 21:44:54 :
The combustion gases actually get behind the upper ring and push it out causing greater pressure against the cylinder walls.
The same thing happens to the intermediate ring, however, the pressure is not as great, and thus less wear.
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