Hey guys just a curious kid here. Is there an advantage/disadvantage to different ring lands? My pistons have 1/16 1/16 3/16....some have 5/64 5/64 3/16 and others 1/16 1/16 1/8. Is there a difference for racing applications or street motors?
Thanks again
Ed

Hey guys just a curious kid here. Is there an advantage/disadvantage to different ring lands? My pistons have 1/16 1/16 3/16....some have 5/64 5/64 3/16 and others 1/16 1/16 1/8. Is there a difference for racing applications or street motors?
Thanks again
Ed
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Hi Ed,
The narrower rings will almost always make more power due to less friction assuming they seal the cylinder.
The 5/64" rings were pretty much the standard for stock stuff with the ductile moly 5/64th rings being the preferred "street performance" ring & the 1/16 was considered "performance only" for years but the rings & honing techniques have gotten so much better that I wouldn't consider the wider rings in any performance application any more.
Even most factory rings are narrower & have less tension than in years past in a quest for more power & better gas mileage.
I use a lot of .043-043-3mm & 1.5-1.5-3mm ring packs with low tension oil rings now in performance stuff but not on the street.
For a street or street strip application it is pretty hard to beat the 1/16-1/16-3/16 standard tension rings.
Hardly anyone but Fed Mog / TRW uses the 1/8" oil ring.

So using the 1/16 1/16 3/16 performance rings, is there more of a chance of blowby? or wearing the rings out faster?
Thanks
Ed

Not if the bores are prepared correctly.
Reread the post again :rolleyes:

Here is part of it,,,

I wouldn't consider the wider rings in any performance application any more.
Even most factory rings are narrower & have less tension than in years past in a quest for more power & better gas mileage.
For a street or street strip application it is pretty hard to beat the 1/16-1/16-3/16 standard tension rings.