June 29, 201412 yr comment_684829 Hi all, does anyone know what the standard comp ratio is on a 5k with D dished pistons? I have calculated mine at 9.8:1..... 81.5mm bore (1mm over std) 73mm stroke 22.5cc dish piston 17.5cc combustion chamber .6mm head gasket my head has been skimmed so I don't know what the original combustion chamber was, has anyone measured a std twin squish combustion chamber? Report
June 29, 201412 yr comment_684834 That sounds about right if the head has had a bit of a skim. 0.6mm seems a little thin for the gasket though. Report
June 30, 201412 yr comment_684942 compressed its about 1.3mm 82m bore Edited June 30, 201412 yr by tojo2 Report
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