chayote86 Posted March 30, 2012 Report Share Posted March 30, 2012 I been working on a drag build am im looking for a set of drag pipes but dont really know if i should go with In or Out frames. How does the power compare between both? And what brand gives more hp? I still havent picked up cylinders but im leaning toward HJR drag cubs. Thanks guys Quote Link to comment Share on other sites More sharing options...
Phelps Posted March 30, 2012 Report Share Posted March 30, 2012 go out. much easier to work on the bike. Quote Link to comment Share on other sites More sharing options...
zach45 Posted March 30, 2012 Report Share Posted March 30, 2012 I have an inny Quote Link to comment Share on other sites More sharing options...
chayote86 Posted April 1, 2012 Author Report Share Posted April 1, 2012 Good point it would be allot easier to work on! What about performance wise? Quote Link to comment Share on other sites More sharing options...
RadarRacing Posted April 1, 2012 Report Share Posted April 1, 2012 Most so called drag type/topend hp inframes such as shearer and cpi will be 5 to 10% less power than their out of frames. A well built motor even with inframes can be very fast but the same well built motor is faster with oofs. In my opinion there is no better than Shearers. CPI also has a loyal following and are very good pipes. Quote Link to comment Share on other sites More sharing options...
Nightmare Posted April 1, 2012 Report Share Posted April 1, 2012 Shearer FTW Quote Link to comment Share on other sites More sharing options...
BigRed350x Posted April 2, 2012 Report Share Posted April 2, 2012 OOF's are usually louder and can pose some mounting problems but they offer better performance and they make the bike easier to work on. - Jared Quote Link to comment Share on other sites More sharing options...
Wildcardracing Posted April 2, 2012 Report Share Posted April 2, 2012 Best bet is to ask your builder which brand and size to go with. Everyone sets up their porting and domes a bit different. 421 cub can be set up to run very well with many pipes. Three most common will be Shearer SB, CPI SB and CPI BB. -Brandon Quote Link to comment Share on other sites More sharing options...
camatv Posted April 2, 2012 Report Share Posted April 2, 2012 shear same side out frames. if they are to loud get silenced version. 4 springs, and one bolt they fall off the bike. no burnt plastic, no burt or cooked fuel lines, no carbs baning against pipes, no burnt filters from stinger tubes no burnt leggs from big ass pipes sticking out and you have to sit on the damn bumper to keep the nose down.. Quote Link to comment Share on other sites More sharing options...
chayote86 Posted April 3, 2012 Author Report Share Posted April 3, 2012 Hell yeah! No burnt legs is the deal maker!! Thankd fellas always apreciate the advice!! Quote Link to comment Share on other sites More sharing options...
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