Compression Ratio's

[David Costello]

I don't know if this is going to come out making the same sense as it does in my head, but here goes...   I've used a compression ratio calculation program to work out what sized dish to get made on my new pistons.  The software asked for "piston down from TDC". I've worked out a compression height for my pistons that ends up with them sitting perfectly at deck level of the block when the pistons are at TDC. So in the software I entered 0mm in the "piston down from TDC" value.   My question is, does this value include head gasket thickness? If I enter 0mm will it assume 0mm below deck height, or 0mm below the gasket?   I'm using a 2mm copper ridgecrest gasket, should I add 2mm onto my requested piston height?   Dave --membersozdat------------------------------------------------------- OZDAT Mailing List Please Note:- Send (un)subscribe requests to [EMAIL PROTECTED] Send submissions to [EMAIL PROTECTED] No unauthorised redistribution of this email http://www.ozdat.com/ozdatonline/index.htm http://www.ozdat.com/ozdatonline/listindex.html http://www.mail-archive.com/membersozdat@datascribe.com.au/ ---------------------------------------------------------------------