newbatv Posted May 9, 2011 Report Share Posted May 9, 2011 hey everyone, just picked up a banshee and it has the stock head cut 0.030". i know each one will be different but im told its running at 155psi and to run premium. my question is what is the stock cc and the cc on a head cut 0.030"? just looking for somewhere to start as i would like to get a cool head and im not sure what cc domes to get. the bike is stock engine, fmf pipes, k&n filter, adjustable timing box and of course the shaved head. my problem is that we dont have premium in my hometown. i can get 110 race fuel and mix it down with pump which is what i did with my snowmobile but it runs expensive. for the small loss in power i would be happy to cut back the compression to run pump gas. im fine for now cause im in a city and got premium everywhere. maybe ill just take a 14 gallon drum back with me for the summer. Thanks, im open to suggestions. Quote Link to comment Share on other sites More sharing options...
dirtydownunder Posted May 9, 2011 Report Share Posted May 9, 2011 22-23cc for stock heads, they vary. i dont know what cc a stock head milled .030" is. but to get 155ish psi @ sea level, youd think around the 20-21cc mark. get some thickish flat perspex and a syringe (cc/ml) and get measuring. coz your running a stock head, you can just run a thicker head gasket to lower the compression. Quote Link to comment Share on other sites More sharing options...
Dunes98 Posted May 9, 2011 Report Share Posted May 9, 2011 I had my head milled .040 and was told by my engine builder that it has 19cc domes when he was done with them. Dont know if this helps. Quote Link to comment Share on other sites More sharing options...
newbatv Posted May 9, 2011 Author Report Share Posted May 9, 2011 that helps thanks, i wasnt sure if there was thicker gaskets available so ill probably go that route for now. where can i get a thicker headgasket? Quote Link to comment Share on other sites More sharing options...
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