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KTL KTL is offline
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Join Date: Sep 2000
Location: Frankfort IL USA
Posts: 16,643
To maintain same 198 mm cylinder deck (including 1 mm deck height) with SC rods offset bored, SC crank and Carrera comp. ht. pistons you need a 129.0 mm rod. So you have to effectively lengthen the rod by 1.2 mm with the offset bore?

Question I have, do you use a new 23 mm ID bushing with larger OD to accomplish this? Because if you offset the bore by 1.2 mm, even though you're increasing the bore size a bit, you have some left over hole from the 22 mm bore that is not "covered" by the new 23 mm bore. Or am I mistaken that we're not actually going to lengthen the rod to 129 mm?

Pictured here is simply a 22 mm bore (area inside red herringbone pattern bushing) covered by a 23 mm hole (white hatch area inside white herringbone) offset by 1.2 mm. See how the remnants of 22 mm bushinghole still remain? I just made an assumption that both bushings are 1mm thick


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Kevin L
'86 Carrera "Larry"
Old 06-13-2013, 10:43 AM
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