Yanbansh04 Posted December 4, 2012 Report Share Posted December 4, 2012 Hi, I have actually cpi sb on my 443 cub, I want to know if the BB are better on my engine and what will be the difference ? Quote Link to comment Share on other sites More sharing options...
Nightmare Posted December 4, 2012 Report Share Posted December 4, 2012 They could be. Some guys run bb in 4mils. Just depends on how your motor is setup. Sent from my SGH-T679 using Tapatalk 2 Quote Link to comment Share on other sites More sharing options...
mlarkin_09 Posted December 4, 2012 Report Share Posted December 4, 2012 Is it the stinger size that is different or do they redesign the whole expansion chamber? I had a set of CPI big bore in frames but never looked at the Small ones that close Quote Link to comment Share on other sites More sharing options...
Nightmare Posted December 4, 2012 Report Share Posted December 4, 2012 I'm pretty sure it's the stinger diameter. Sent from my SGH-T679 using Tapatalk 2 Quote Link to comment Share on other sites More sharing options...
WINDYCITYJOHN400 Posted December 4, 2012 Report Share Posted December 4, 2012 When it comes to CPI....on that size motor the BB pipes are your best bet. With Shearers you would want the SB. Quote Link to comment Share on other sites More sharing options...
Yanbansh04 Posted December 5, 2012 Author Report Share Posted December 5, 2012 okay, thank! Quote Link to comment Share on other sites More sharing options...
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