Junkyshee Posted July 5, 2013 Report Share Posted July 5, 2013 My buddy doesn't use the computer much and wanted me to get a little info. His banshee is .80 over, mild port work, fmf pipes and silencers, vforce reeds, stock carbs jetted for pipes, it's tore down right now and waiting on rings and gaskets to come in, but he has a cool head that come off his parts bike and he wants to put it on when he puts it back together, but one of the domes are a little beat up. He's wanting to know what cc domes he should run in it. We do quite a bit of trail riding, a lot of grudge drag racing, nothing too hardcore. I'm not real familiar with this my banshee is pretty well stock lol. What size cc domes would you guys recommend? Thanks in advance. Quote Link to comment Share on other sites More sharing options...
Junkyshee Posted July 5, 2013 Author Report Share Posted July 5, 2013 (edited) He doesn't care to run race gas if he has to Edited July 5, 2013 by Junkyshee Quote Link to comment Share on other sites More sharing options...
special06shee Posted July 6, 2013 Report Share Posted July 6, 2013 Dont run race fuel!! If you guys enjoy trail riding, you will take 95% of the fun out of it when it cost 10 dollars a gallon for fuel. Get a nice 21-22cc dome and stay on pump. 1 Quote Link to comment Share on other sites More sharing options...
trickedcarbine Posted July 6, 2013 Report Share Posted July 6, 2013 With that bore and good premium pump fuel I'd say a 21-22cc dome would be close but your elevation plays a factor. Where are you guys at in relation to sea level? Quote Link to comment Share on other sites More sharing options...
ATV Galaxy Posted July 6, 2013 Report Share Posted July 6, 2013 Yup. We don't recommend pump gas on anything lower than 20cc domes. Quote Link to comment Share on other sites More sharing options...
Junkyshee Posted July 6, 2013 Author Report Share Posted July 6, 2013 We do trail ride more than anything. And 218 meters above sea level. Thanks for all of the replies! Quote Link to comment Share on other sites More sharing options...
trickedcarbine Posted July 7, 2013 Report Share Posted July 7, 2013 21cc should be doable on good premium. Might even be able to squeeze ; degrees of timing in there to. But if you really wanna be safe do a 22. Quote Link to comment Share on other sites More sharing options...
jtschid0910 Posted November 2, 2014 Report Share Posted November 2, 2014 21cc should be doable on good premium. Might even be able to squeeze ; degrees of timing in there to. But if you really wanna be safe do a 22. Bringing this post back from the dead but Carbine what do you mean by that part? Does that refer to changing the timing as in "+4"? Quote Link to comment Share on other sites More sharing options...
Surfrjag Posted November 2, 2014 Report Share Posted November 2, 2014 21cc and +4 timing Quote Link to comment Share on other sites More sharing options...
trickedcarbine Posted November 2, 2014 Report Share Posted November 2, 2014 ^ Quote Link to comment Share on other sites More sharing options...
jtschid0910 Posted November 5, 2014 Report Share Posted November 5, 2014 Will advancing the timing affect the compression? Quote Link to comment Share on other sites More sharing options...
Bennett131 Posted November 5, 2014 Report Share Posted November 5, 2014 No it affects ignition temp. Quote Link to comment Share on other sites More sharing options...
BANSHEEBEEFM2M Posted November 5, 2014 Report Share Posted November 5, 2014 21cc Quote Link to comment Share on other sites More sharing options...
jtschid0910 Posted November 5, 2014 Report Share Posted November 5, 2014 So advancing the timing does or does not play into what size domes are required? Quote Link to comment Share on other sites More sharing options...
trickedcarbine Posted November 5, 2014 Report Share Posted November 5, 2014 They are seperate issues, however on motors geared more toward maximum performance you need to account for timing as well as compression as both elements can contribute substantially to additional heat. Before set up,you need to factor what fuel is going to be used. Then whoever machines the domes can figure dome specs off engin peramiters. (ie. desired compression, bore, stroke, motor rpm range, using timing) Where that ties to your question, if a person would like to add compression as well as timing the squish and CC volume may be a bit loooser to accomidate. Example: if your trail bike has domes for pump gas but the motor is already flirting with detonation, it would be a good idea to pull a CC or two out if you were gonna throw timing at it as well. Maybe loosen squish as well. If the bike already has timing, and you are looking to bump compression with new domes, definitely account for it. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.