I now this has been coverd before but this search function on this forum is pathetic it never works for me brings up all this junk so if u guys could help me out I was just wondering if the vlt and n/a rings are the same strength thanx

I don't know about relative strength, but they are not the same shape. They have different chamfers and such.

Maybe some brands are, but out of the factory they were the same rings up to 1.00mm o/s. For 1.00mm o/s rings the part numbers are different. Dunno why.

thanx for the help fellas i thought they were simular strength if anybody else has any more information it would be a big help

out of the factory the turbo and NA rings are different, ill look it up later to find out exactly how, CBF at the moment my computer is about to meltdown. And you will find that evry oversize ring will have a different part number, otherwise how would they know what size ring they were giving you.

Piston ring differences. top ring, 3.0ET has cut away on inside top edge, this is not on 3.0E second ring 3.0ET is 0.05mm thicker third ring or oil ring/ spacer is different on inside edge. Valve springs also different. If you want I can email scanned pages.

All I can go on is the VL parts book, which says they're the same. See below -

Quote: Originally Posted by 87calais And you will find that evry oversize ring will have a different part number, otherwise how would they know what size ring they were giving you. I meant the Graded & .020mm o/s set numbers are the same for both n/a and turbo. The sets for .50mm o/s are a different number (as you'd expect), but are the same for both types of engines. The 1.00mm o/s sets for both engines have differing numbers only. You'll notice the numbers in brackets on the attachment above meaning they've been superceded at some stage, but at the time the book was printed they probably hadn't sold too many 1.00mm o/s sets which is why the numbers differ between engines. Initially it looks like all the numbers were different for each set for each engine and they've been standardized in production. Basically what I'm saying is that late n/a's probably have turbo standard rings.

i know in most aftermarket brands the initial part no. is the same The only thing that differs for oversize rings is the the end eg .020 .050 etc etc in thou sizes and in mms as well

can somebody clarify that they are relatively the same strength

If you have a turbo engine just put turbo rings in it. The info I wrote previously is straight out of the Holden book.

i jsut checked my acl engine catalogue at work and they are the same part number for both turbo and non turbo rings