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Ring sizes for SC
I bought new rings for my 3.0 project and they are too lose in the lands. My pistons have about 1.75mm in the middle ring land and about the same or abit more in the top land. The rings I got were 1.75 for the middle and 1.5 for the top.
The pistons are Kolbenschmidt 9.3 alusils. I'm going to measure another set and this set more accurately tomorrow but wonder if someone can shead some light on the ring sizes for the various 95mm pistons. If my pistons are non-standard does anyone have a source for rings? Could I use a second set of middle rings in the top land? |
From what I can see for 3.0L pistons, the following sizes were available (at least at one point in time):
1.5, 1.5 & 4.0mm 1.5, 1.75 & 4.0mm 1.5, 1.75 & 3.75 mm It appears from my old Mahle Motorsport info, the 3.0L racing pistons used ring sizes 1.5, 1.5 & 4.0mm as one of the options above. Andial also used a 1.8mm middle ring for their 2.7 to 3.0L conversion using a 95mm piston. Not sure however if this ring was simply the 1.75mm listed above rounded up. Ralph |
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