Aussie Quad Racer Posted January 25, 2004 Report Share Posted January 25, 2004 If you take the cylinders off your banshee you will notice that there are two cavities directly below the intake port in the top case. When the cylinders are in place these are just a traped air pocket that do nothing. My idea is that you devcon these cavities up and drill 2 8mm(5/16) holes through them into the crankcase(one in each cavity). If the holes are drilled correctly they should have a nice smooth and straight entry from the bottom of the crankcase area. The reason i would devcon them up is to make it a perfect tube. Next place the cylinders onto the top case and drill into the bottom of the intake track using the holes you have drilled through the top case. This will give you 2 matched ports from the crankcase area back into the inlet track. My idea behind this is that it will allow a better flow and feed to the boost port. The intake charge will run through the piston windows as normal and swirl around the crancase. These ports(if drilled correctly) will be directly in the path of the air/fuel mixture as it rotates around the crankcase and help feed the boost port as they will shoot straight up to it and make it act more like a transfer port than a boost port. I would like to here all views and comments antone has to say on this matter! Quote Link to comment Share on other sites More sharing options...
SDD Posted January 25, 2004 Report Share Posted January 25, 2004 This has been done before on 250R's. The main problem with them is the reeds block the holes. Your better off doing boyesen ports and making sure you have everything working together. Quote Link to comment Share on other sites More sharing options...
Aussie Quad Racer Posted January 25, 2004 Author Report Share Posted January 25, 2004 if the ports ar positioned correctly there should be plenty of room for the gasses to shoot directly up to the boost port. The reed cage is positioned back far enough for a direct feed. Quote Link to comment Share on other sites More sharing options...
Nighty Posted January 31, 2004 Report Share Posted January 31, 2004 So how is this project going? Or did the idea died? Quote Link to comment Share on other sites More sharing options...
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