Anybody know offhand, how many cc per .010" removed from the face of a stock 998 cylinder head.....
The walls are pretty straight, so, should be pretty consistent up to about .100"
Trying to compression ratio on a 998 build....
Combustion chambers
-
gs.davies
- Site Admin
- Posts: 1758
- Joined: Fri Oct 26, 2012 2:29 pm
- Location: Essex, UK
- Has thanked: 72 times
- Been thanked: 69 times
- Contact:
Re: Combustion chambers
This thread may be helpful. There’s a calculator somewhere in the thread that will approximate chamber size by how much has been skimmed.
http://mk1-forum.net/viewtopic.php?f=3& ... m&start=10
http://mk1-forum.net/viewtopic.php?f=3& ... m&start=10
-
bwaminispeed
- 998 Cooper
- Posts: 609
- Joined: Sat Aug 21, 2010 4:05 am
Re: Combustion chambers
Indeed, that was helpful, thanks.....
Chamber volume cc
inch skim___std.__0.010__0.020__0.030__0.040__0.050__0.060
12A1456___24.5__23.93__23.36__22.79__22.21
12G202____26.1__25.46__24.82__24.19__23.55__22.91__22.27
12G295____28.3__27.56__26.82__26.07__25.33__24.59__23.85
12G940____21.4__20.66__19.92__19.17__18.43
Chamber volume cc
inch skim___std.__0.010__0.020__0.030__0.040__0.050__0.060
12A1456___24.5__23.93__23.36__22.79__22.21
12G202____26.1__25.46__24.82__24.19__23.55__22.91__22.27
12G295____28.3__27.56__26.82__26.07__25.33__24.59__23.85
12G940____21.4__20.66__19.92__19.17__18.43