Originally posted by: cctman
I agree completely... On a side note thats why those that are serious about racing get their engines blue printed. This usually does a lot to increase the performance of ATV's and motocross bikes. The reason why you could have the same ATV engine put out more hp than another one sitting right beside it on the assembly line is because when engines are made they are developed by the masses. You can have one engine cyclinder that was pressed wrong, crooked, Intake/Ports aren't evenly balanced. These minute differences speak volumes at 7,000 -9,000 RPMs. A small difference in angle or clearance between piston and head can add a hp or two and alter the powerband. This happens even more substantially in sport bikes. Blue printing is basically taking the measurements of your cylinder and making sure every angle of every port, intake, height, width, is exactly like it should be (to spec). In my opinion it makes a better peformance gain to do this too 2 strokes than 4 strokes and this is often overlooked. Thats why you often see different variations between different banshees and there performance. So to assume your stock raptor can take all stock banshees or vice-versa is pretty rediculous.