rob82 Member 65 Member For: 19y 7m Posted 20/12/10 11:28 AM Share Posted 20/12/10 11:28 AM Just wondering what the differences are between BF and FG cylinder heads and also what is the combustion chamber volume in both heads? Link to comment https://www.fordxr6turbo.com/forum/topic/72257-fg-vs-bf-combustion-chamber-design/ Share on other sites More sharing options...
Impellor Member 835 Member For: 14y 10m 30d Gender: Not Telling Posted 29/11/11 04:44 AM Share Posted 29/11/11 04:44 AM ????? Link to comment https://www.fordxr6turbo.com/forum/topic/72257-fg-vs-bf-combustion-chamber-design/#findComment-1163982 Share on other sites More sharing options...
senna_T Forged Member Lifetime Members 15,818 Member For: 18y 4m 12d Gender: Male Location: SW Sydney Posted 29/11/11 05:48 AM Share Posted 29/11/11 05:48 AM From memory the actual chamber isn't much different, but the inlet side of the head has a slight twist I guess you would say in order to increase the mixture efficiency. If you are after fuel consumption figures, the FG head is better, if you are after outright flow and power then it doesn't matter because you will port out and differences anyway. Link to comment https://www.fordxr6turbo.com/forum/topic/72257-fg-vs-bf-combustion-chamber-design/#findComment-1164001 Share on other sites More sharing options...
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