Ring part number

Need part number for rings. 4.3 stroke 6.8 rod .030 over probe forged piston.

This is what I am using mahle (sealed power)315-0010035.This has a low tension oil ring napier second ring moly top and 1/16 thickness .030 oversize .

manofmerc wrote:This is what I am using mahle (sealed power)315-0010035.This has a low tension oil ring napier second ring moly top and 1/16 thickness .030 oversize .

Thanks man please refresh my memory apparently I have forgot a lot lol.  What does the low tension oil rings do?  I'm pretty sure that's what I have been running too.  naturally aspirated Alky Injection deal. Also can't find this part number through Jegs.

Call Total Seal and tell them what you need!!

Low tension rings reduce friction and the napier second ring has less friction as well and it is a really good oil scraper .Maybe someone more knowledgeable than myself will chime in on this .Here is that pn again 315-0010035.And a # for mahle 888 255 1942 .

A major source of drag ( and "parasitic" horsepower loss) is from piston rings. Oil rings especially. A low drag oil ring has an expander that doesn't create as much drag and frees up some power. "Some" feel this has an effect on oil control in a bad way. The use of a "napier" second ( special undercut for improved oil control) eliminates the potential problem. The result is less rotating friction and more HP.
I would run the above noted ring set for sure.

Thanks guys

In my search for rings and calling the above number. With alcohol injection naturally aspirated bracket car they recommended a gapless style ring. Have any of you guys ran these rings and what is your opinion of them.

Thanks

I've ran gapless in a turbo application, and that will be the only thing I'll ever run.

rmcomprandy wrote:

away wrote:In  my search for rings and calling the above number.  With alcohol injection naturally aspirated bracket car they recommended a gapless style ring.  Have any of you guys ran these rings and what is your opinion of them.

Thanks

A gaples ring probably won't make any more power but, it will have less oil dilution.

I would never use a gapless 2nd ring, (except on a part throttle grocery getter engine), however, a gapless top does have some merit with alcohol fuel.

Thanks