southside Posted December 23, 2013 Report Share Posted December 23, 2013 What is the overall best dome size for pump gas 93 octane on a stock bore motor. Looking to buy a cool head for my trail bike and have never really ran pump gas in any of my bikes in the past. Thanks in advance for any help. Quote Link to comment Share on other sites More sharing options...
southside Posted December 24, 2013 Author Report Share Posted December 24, 2013 Not really wanting to do all that for a stock motor with bolt on's just looking to use the pro design domes and wanted to get the best working cc Quote Link to comment Share on other sites More sharing options...
sprinklerman Posted December 24, 2013 Report Share Posted December 24, 2013 Why not? They are about the same price. Quote Link to comment Share on other sites More sharing options...
dirtydownunder Posted December 24, 2013 Report Share Posted December 24, 2013 custom domes make the difference or running higher comp without chance of detonation. Quote Link to comment Share on other sites More sharing options...
DUSTY05 Posted December 24, 2013 Report Share Posted December 24, 2013 20cc would be good... Quote Link to comment Share on other sites More sharing options...
southside Posted December 24, 2013 Author Report Share Posted December 24, 2013 I didn't know they were the same price I guess I will have to do that Quote Link to comment Share on other sites More sharing options...
southside Posted December 24, 2013 Author Report Share Posted December 24, 2013 Any builder recommendations to go through to get a pair cut? Quote Link to comment Share on other sites More sharing options...
possum Posted December 24, 2013 Report Share Posted December 24, 2013 more often then not "custom" domes are premade from trial and error. Not to you're motor. Every builder has predetermined specs for certain builds and needs of the customer. Like they have a dome for each size motor they like 95% of the time. Some builders like more or less band width, some recommend smaller cc domes, some like different squish clearance etc.... This doesnt mean they are not good domes. just ask questions. There has been plenty of custom domes "for a motor" sold that detonate or blow motors up. Quote Link to comment Share on other sites More sharing options...
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