megamannz123 Posted June 29, 2014 Report Posted June 29, 2014 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? Quote
Taz_Rx Posted June 29, 2014 Report Posted June 29, 2014 That sounds about right if the head has had a bit of a skim. 0.6mm seems a little thin for the gasket though. Quote
megamannz123 Posted June 29, 2014 Author Report Posted June 29, 2014 Any idea what they are standard? Quote
tojo2 Posted June 30, 2014 Report Posted June 30, 2014 (edited) compressed its about 1.3mm 82m bore Edited June 30, 2014 by tojo2 Quote
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.