lil89ram50 Posted December 21, 2011 Report Share Posted December 21, 2011 for a 92 240sx ka24de. the ring gap is top ring .0017 second ring .0019 just clarifying befors i assemble bottom end Quote Link to comment
ggzilla Posted December 21, 2011 Report Share Posted December 21, 2011 Sounds like the side clearance. Shouldn't the ring gap be larger than that? Quote Link to comment
lil89ram50 Posted December 21, 2011 Author Report Share Posted December 21, 2011 just looking at the second post on this page. does turbo'd or not matter? i do plan on maybe turboing in a couple years. Quote Link to comment
datzenmike Posted December 21, 2011 Report Share Posted December 21, 2011 A general guide to calculating ring end gap. For example a KA24DE would be 89MM X .0394 = 3.5 inches (bore) x .0045= 0.015" top ring for High Pref. Street Strip High-Performance Street / Strip top ring bore X .0045” second ring bore X .0055” Street-Moderate Turbo / Nitrous top ring bore X .0050” second ring bore X .0055” Late Model Stock top ring bore X .0050” second ring bore X .0055” Circle Track/Drag Race top ring bore X .0055” second ring bore X .0060” Blown Race Only top ring bore X .0065” second ring bore X .0070” Nitrous Race Only top ring bore X .0070” second ring bore X .0075” If you mean the ring side clearance in the piston then it's Top ring 0.0016 to 0.0031" Second ring 0.0012 to 0.0028" for a 92 240sx ka24de. the ring gap is top ring .0017 second ring .0019 just clarifying befors i assemble bottom end So yeah that is within limits. . Quote Link to comment
lil89ram50 Posted December 21, 2011 Author Report Share Posted December 21, 2011 wait. wat do you mean with piston? im talking about just putting the rings in the bore with out the piston and measuring the gap. Quote Link to comment
datzenmike Posted December 21, 2011 Report Share Posted December 21, 2011 wait. wat do you mean with piston? im talking about just putting the rings in the bore with out the piston and measuring the gap. That's called ring end gap. The top of my post shows how to calculate it based on how hot the rings are going to run. Obviously full nitrous will get hotter that street and strip and will need to be gaped wider to allow for heat expansion. Ring side clearance is the space between the top (or bottom) of the ring in the ring land in the piston. Quote Link to comment
lil89ram50 Posted December 21, 2011 Author Report Share Posted December 21, 2011 ok i understand. thanks mike Quote Link to comment
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