best way to run my new engine in?
07-04-2005, 05:18 PM
#41
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Rings are fairly accuratly made where as no-one seems interested in boring a block with any process better than stones and oil!
and as for rings, there accuracy is very debatable, especially all the ones i have ever been supplied.....
i generally find rings are a lot softer than cylinder bores hence changing them a couple times to a bore and not the other way around
Pugo
07-04-2005, 07:17 PM
#42
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i generally find rings are a lot softer than cylinder bores hence changing them a couple times to a bore and not the other way around
07-04-2005, 07:49 PM
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yeah but surely the wear is spread out over the bore so that's why the thin rings wear quicker?
07-04-2005, 09:43 PM
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do you mean :find wear in??
if so dependant on engine type 2/or4/ and or na or forced induction
2/ na: normally wear on ring lands and contact faces
2/ forced: i have found to wear a lot heavier on contact faces
4/ na: as 2/ na
4/ forced: a lot lot heavier on contact faces as the piston lands seem to be softer and seem to take the brunt of the wear, they seam to wear excessivly on the top of the contact face, but i would presume that this has a lot to do with the high combustion pressures we are putting them under
Hope this answers your question
if so dependant on engine type 2/or4/ and or na or forced induction
2/ na: normally wear on ring lands and contact faces
2/ forced: i have found to wear a lot heavier on contact faces
4/ na: as 2/ na
4/ forced: a lot lot heavier on contact faces as the piston lands seem to be softer and seem to take the brunt of the wear, they seam to wear excessivly on the top of the contact face, but i would presume that this has a lot to do with the high combustion pressures we are putting them under
Hope this answers your question
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