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Title: honda 400ex bored to 440 and exhaust Post by: jcaldwell on July 31, 2006, 02:20:14 PM I rebuilt my engine a while back and I can't remember if it was a 11:1 or a 10:1 is there any way to find out what piston I put in the motor? And what kind of muffler would be best for my bike? Thanks
Title: Re: honda 400ex bored to 440 and exhaust Post by: Fox17 on July 31, 2006, 03:56:33 PM do you have the reciets or papres on it? they should say. get a wb exhaust.
Title: Re: honda 400ex bored to 440 and exhaust Post by: jcaldwell on July 31, 2006, 04:59:45 PM if I had the papers I would know but I lost them and why a WB?
Title: Re: honda 400ex bored to 440 and exhaust Post by: derek330 on August 02, 2006, 10:05:29 PM if you calculate your volume at top dead center and compare it to your volume at bottom dead center that will give you your compression ratio...
ex. if you had a 410cc's at bottom dead center and had 37.2cc's at top then you would have an 11:1 compression ratio. you could test the compression with a guage but you can not accuratly calculate the compression this way because it will change with different cams... |