Piston ring filer

[olds307 and 403]

Looking at picking up a reasonable priced hand crank model. Looking for something easy to use to set the ring gap on my 357 in the next couple of weeks. Thanks in advance.

 

[bracketchev1221]

Summit Racing SUM-906795 Summit Racing™ Universal Piston Ring Filers | Summit Racing

Free Shipping - Summit Racing™ Universal Piston Ring Filers with qualifying orders of $109. Shop Piston Ring Filers at Summit Racing.

www.summitracing.com

I use this one. And if you are lazy like me, you can bolt it to the bench and hook a 1/2" drill to the end where the handle goes and make it motorized ring filer. I built all my race engines this way.

 

[olds307 and 403]

Thanks. Mark mentioned to aim for .020" top and .025" second. He said at least .010" for the oil ring rails. I may consider a Torque Storm Supercharger down the road, if 400 hp isn't enough, so I don't want to be too tight. It looks like much better temps here next week, so I will measure where they are at.

 

[bracketchev1221]

Thanks. Mark mentioned to aim for .020" top and .025" second. He said at least .010" for the oil ring rails. I may consider a Torque Storm Supercharger down the road, if 400 hp isn't enough, so I don't want to be too tight. It looks like much better temps here next week, so I will measure where they are at.

Yes the trend is second ring bigger than the top. Used to be top ring was wider for expansion until it was found that trapping the gases between the rings was no good.

 

[olds307 and 403]

Ordered this one off Amazon.

It looks the exact same as the basic Summit brand ring filer.

 

[64nailhead]

I have that one. By hand is a chore. By the time I have a set done, my fingers are letting me know. If you've never done this, then be advised that it's harder to keep the ends cut square than one would think.

I wouldn't consider anything as tight as .020 with a turbo, let alone a supercharger. .023 for boost at a minimum. And .026 won't hurt anything.

 

[565bbchevy]

I bought this style many years ago from Summit.

 

[melloelky]

👍
😆

 

[olds307 and 403]

Thanks guys, yeah I believe it will be hard and tedious. I can go .023" on the top, as long as blow by doesn't increase a bunch. Supercharging is only maybe, if I need 500+ hp and after some miles and EFI, the torque storm is 6 psi, I believe. I figure the bottom should take that, easy peasy. I will probably go with .045" Cometic MLS for a safer .042" piston to head vs .037" with the .040" Mahle MLS. My pistons will be .003 above deck. Have you guys noticed more blow by with the wider ring gap on boosted engines? Decisions.

 

[bracketchev1221]

Ring gap has almost no impact on blow by. A few thousandths isn’t going to hurt anything. It’s better to be wide than butt the ring ends and break them.