shanYE west Posted August 26, 2008 Report Share Posted August 26, 2008 He could be using a big bore stock cylinders with 68.25mm bore and a 4mil crank..thats 424cc's. A nicely worked over 10mil cub makes about 125ish depending on where its dyno'd.. some dyno's being more generous then others.. Quote Link to comment Share on other sites More sharing options...
714banshee380 Posted August 26, 2008 Author Report Share Posted August 26, 2008 Now he's saying 115-120..... Quote Link to comment Share on other sites More sharing options...
slc_hillshooter Posted August 26, 2008 Report Share Posted August 26, 2008 Stock cylinders with a 4mm or a 7mm stroke could be 60-70 horse. 4mm cubs are 80-90. My buddy has a 10mm cub and its 100HP exactly, thats built by K&T with shearer inframes and 35.5 mikuni carbs. Another local guy has a 10MM DM that made 138HP on alcohol with the BEST of everything of course. Quote Link to comment Share on other sites More sharing options...
dajogejr Posted August 26, 2008 Report Share Posted August 26, 2008 It is very possible...a STOUT running 425 could be putting 145 HP at the crank....and 20 to 30 HP is being lost through the transmission, chain and axle... But 145 at the rear tires.... He'd need a stout motor AND a big shot. Or... A turbo...LOL. Quote Link to comment Share on other sites More sharing options...
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