Speed pro moly ring gaps

[Pablo]

filing ring gaps here

What gaps do you guys suggest? Engine will be pushed pretty hard but really for not much more than a 1/4 mile at a time. I'm aiming for mid bottom tens with the combo.

So far I have them at 19-20 ish for the top and 23-24 for the bottom. Sound good?

 

[Lee Thompson]

3.800 bore ??

I use .018 top and .021 second. Just had one back apart after 5 track passes and maybe 100 street miles. That appeared to be perfect. I saw 0 black between the first and second ring on side of piston. This was a 3.805 bore. I also remove a couple of the 2 top piston rings and saw no sign of butting. I know of one instance where the builder set the top @ .016. A little too tight for me. Best of luck.

 

[Pablo]

I screwed up. I got a little carried away with one of the bottom rings and ended up with .029 gap.

I'm contemplating running it. Top ring on that one is at .020

Will I be ok or do I need new rings?

the rest of them came out good at around .019 top to .021-.022 bottom

btw this is a 3.830 bore

 

[forcedfedv6]

19 to 21 on top and 24 to 26 on bottom, thats what most reputable builders use if you are going to push the motor hard..I saw billy anderson recommend those gaps quite a few times on some of his post, do a search..

 

[Chuck Leeper]

Pablo, U get the email I sent w/ the SP attachment??

 

[Pablo]

I just got done reading it chuck. Very informative. Thank you.

 

[Chuck Leeper]

U R most welcome!