baggins

iTrader: (21)

OK I've looked around but can't find anything concrete. I'm doing a 404ci build which is a 4.005 bore and have total seal stainless rings for my diamond pistons. What are you guys doing for ring gap? Bigger on top or second ring? What size gap? Opinions on the your theory. This will eventually be e85 but probably will start out on 91. Plans for about 20ish pounds of boost

stevieturbo

Gaps depend on application, and ring type.

But the only thing that is certain. Too small a gap is bad. Too large...really wont make much difference at all

baggins

iTrader: (21)

Lets say stainless rings and 15-20 pounds if boost

stevieturbo

Stainless is a material, not a design.

Your ring set will come with instructions as to recommended gaps for that specific set for various applications.

Follow those, but under no circumstances gap them too tight.