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400ex=awesome
06-15-2010, 09:57 PM
i have a 400ex bills pipes full exhaust, bored out to a 416cc, k&n air filter, w/o lid, high compression piston, stage 2 hot cam, 172 main jet, brand new itp holeshots, premium gas, 11:1 compression piston, and 16t front sprocket with 39 rear and some other stuff im forgetting i was wonder what the top end (top speed) would be and how much horse power:macho

honda400ex2003
06-15-2010, 10:08 PM
33-34 hp would get you close and you would be around 75-77 mph with that gearing go to 400ex speed calculator and see how it is with that gearing. steve

400ex=awesome
06-15-2010, 10:13 PM
ok thanks ive tried to use my gps but i have no where to try to see how fast it is and if i try to do it on the main road by my street people call the cops on me and my tires just spin (the road is gravel) lol but thanks though im might get it dyno'd to see all the specs

honda400ex2003
06-15-2010, 10:18 PM
sounds cool on the dyno. i would like to see what a 11:1 will do compared to mine. you have the basics covered with the exhaust and cam to go with it so it would be a fair comparison. steve

400ex=awesome
06-16-2010, 07:57 AM
yeah when i do that i will send you the results or something or i will just post it lol