Adam Posted October 6, 2011 Report Share Posted October 6, 2011 I've been rebuilding a bike for my girlfriend, a Peugeot 103. I'm trying to fab a spannie for it and I was wondering if any of you with a bit of software would mind dropping the numbers in for me. Exhaust Duration = 147 degrees. Engine Speed = 6500 rpm Exhaust Flange = 21mm dia & 35mm from piston face. Cheers Adam Link to comment Share on other sites More sharing options...
2T Institue Posted October 6, 2011 Report Share Posted October 6, 2011 exhaust port area,transfer duration, rod length, bore and stroke , compression ratio, gearbox ratios(if any)????? A 6500 rpm peak pipe will be ablout 1300mm long Link to comment Share on other sites More sharing options...
Adam Posted October 6, 2011 Author Report Share Posted October 6, 2011 exhaust port area,transfer duration, rod length, bore and stroke , compression ratio, gearbox ratios(if any)????? A 6500 rpm peak pipe will be ablout 1300mm long Ex port area = 300mmsq Transfer duration = 115 degrees Rod length = 80mm Bore = 40mm Stroke = 40mm Comp ratio = 8:1 No gears. Cheers Link to comment Share on other sites More sharing options...
2T Institue Posted October 6, 2011 Report Share Posted October 6, 2011 OK this will rev a LOT harder 23-23(31) 23-36(205) 36-50(80) 50-64.5(66) 64.5-92(90) 92-92(77) 92-83(36) 83-17(143) All dimensions in mm lengths in brackets.HTH Link to comment Share on other sites More sharing options...
Adam Posted October 7, 2011 Author Report Share Posted October 7, 2011 OK this will rev a LOT harder 23-23(31) 23-36(205) 36-50(80) 50-64.5(66) 64.5-92(90) 92-92(77) 92-83(36) 83-17(143) All dimensions in mm lengths in brackets.HTH Thanks for that, it's quite a bit shorter than 1300mm! How do you mean a LOT harder? Looks proper though, thanks again. Link to comment Share on other sites More sharing options...
CRMotard Posted October 8, 2011 Report Share Posted October 8, 2011 is that a 125 GP pipe spec? hahaha Link to comment Share on other sites More sharing options...
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