4 prots? Do you mean 4 intake ports? does it have the 2 runners per side on the intake? If it does then I have found that this cylinder really is pretty poor as far as combustion chamber design and has a much smaller compression ratio


Av8tor1977 I have a hard time beliving that this gapless ring could have an 800 RPM gain. Im not saying it couldnt happen im just saying its hard to belive. I think now im gona have to get ona and try it lol. It would be nice to see someone else get one and try it to to see what they get in gains also.

How does this ring achiev a zero gap? does it have segments on the ends that overlap or do you adjust it to a zero end gap. If you adjust it ususally with a file till it has a zero end gap then this is a really bad thing to do. the ring will grow in length as it gets hot and expand. if there is no end gap to take this up then it will grow in the bore and bind up. Ever ring that I have ever seen that was zero gap had segments at the gap part of the ring that would overlap the other side of the ring gap creating a zero gap.