Racingjunk Forums - ring end gap?

I think no one has answered this question because it's kind of a trick question, with many different answers. Example, are you planning to run conventional rings or z-gaps? will they be top z-gaps or second ring z-gaps, all different.
The biggest question of all is do you have true blower/nitrous pistons or are they conventional racing pistons?
The difference being that conventioal racing pistons the top ring is only down from the deck about .250, where a blower piston the top ring is down 7/16" or approx .440.
The blower piston ring doesn't take on as much heat as a conventional racing piston, therefore requiring less end gap.
O'k with that being said, blower piston none z-gap top ring, .0055/.006 X bore size. None blower pistons .0065/.007 X bore size.

Nitrous = same situation.

Worse possible serineo, too little gap will pull the top off the piston, too much end gap it may smoke a little and lose a little compression. i'll take too much any day day of the week.
I run .007 X bore size end gap on conventional forged pistons.
Also you need more piston to cylinder cleanance with a blower VS normally asperiated.

Below is Total seal recomendations.

Zip.

http://www.totalseal.com/TechPage.as...plessPistRings