Dragg-on Posted October 18, 2003 Report Share Posted October 18, 2003 Ive got drag cylinders ported making 90hp (350cc). my intakes are not big at all, but There are shops around here that port that think a drag port must have the intakes big, cut top to bottom. how do I explain to these rookies that bigger is not always better? Quote Link to comment Share on other sites More sharing options...
MULLET~BOY Posted October 18, 2003 Report Share Posted October 18, 2003 just tell them to shuve it up there ass lol who cares what other people think let them think you got less power its funny when they think somthing is wrong with there bikes Quote Link to comment Share on other sites More sharing options...
PassionRE Posted October 18, 2003 Report Share Posted October 18, 2003 Just tell them that the guy that ports your cylinders doesn't get paid by the pound of shavings, he gets paid for his knowledge....Jim Quote Link to comment Share on other sites More sharing options...
MULLET~BOY Posted October 18, 2003 Report Share Posted October 18, 2003 haha thats great lol Quote Link to comment Share on other sites More sharing options...
NYUK Posted October 18, 2003 Report Share Posted October 18, 2003 most engine builders say the banshee intake is already big enough. they just reshape them a little.i seen some really hogged out intakes before.didn t run faster than the smaller reshaped ones.transfers and exhaust is where the builders do the real magic. 1 Quote Link to comment Share on other sites More sharing options...
Downside Posted October 20, 2003 Report Share Posted October 20, 2003 Tell them that the only thing they will accomplish by enlarging the intakes is to decrease crank case volume & bottom end response with absolutely no increase in H.P. If they want to prove it to themselves port a set of cylinders but do nothing to the intakes & dyno them. Then go back and open them up & re-dyno them. There will be no diff. in H.P. Opening up the intakes just slows down air velocity which kills bottom end response. Just my .02. -Downside 98' Shee & 89' 250R ooops........ did I say the "R" word. Quote Link to comment Share on other sites More sharing options...
PassionRE Posted October 20, 2003 Report Share Posted October 20, 2003 Drag port and track motors can use a little extra volume. There are just better ways of getting it without hogging out the intakes while maintaining the effects of intake velocity, not to mention maintaining skirt support and minimizing liner wear. Remember, intake velocity doesn't make more peak H.P., it does make for better throttle response though...Jim Quote Link to comment Share on other sites More sharing options...
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