bansh-man Posted December 6, 2007 Report Posted December 6, 2007 im getting ready rto bore my cylinders over, im doing this cuz i cant beat a yfz 450, were dead even, and i need more power, what should i bore to? and how much of a difference will this make? Quote
Bansh-eman Posted December 6, 2007 Report Posted December 6, 2007 dont bore your motor out to beat a 450, there is plenty of other mods you can do to gain power. the life your takingaay from the motor versus the minumal power isnt worth it. list all of your mods so we got an idea what to do... oh and change your name you wanna be! Quote
bansh-man Posted December 6, 2007 Author Report Posted December 6, 2007 im getting ready rto bore my cylinders over, im doing this cuz i cant beat a yfz 450, were dead even, and i need more power, what should i bore to? and how much of a difference will this make? timing upped 4 degrees fmf sst full exhaust k&n intake jetted 280 hinson clutch lol sorry bout the name ill change it.... Quote
dajogejr Posted December 6, 2007 Report Posted December 6, 2007 Get a boost bottle...LOL.. Just kidding... If you're willing to take your cylinders off...get them ported. Night and day difference. As said, boring is only used to keep the top end fresh and tight, unless you go to a BIG BORE kit, you really won't get any power gains from it, noticeable ones...anywho. Start with telling us what mods you have now...that will kinda help us to help you... And I thought you were bansh-eman's long lost brother....he he he... Quote
bansh-man Posted December 6, 2007 Author Report Posted December 6, 2007 timing upped 4 degreesfmf sst full exhaust k&n intake jetted 280 hinson clutch lol sorry bout the name ill change it.... o yeah and i did my own tiny prot and polish job on it.... nothing big Quote
Bansh-eman Posted December 6, 2007 Report Posted December 6, 2007 look into a noss head and bump the compression, but your biggest gain is going to be some porting like Dajogejr said. with your porting and pipes get some carbs and an intake to match and you ill have a completely differant bike. keep in mind you might have enough power to beat him right now if your on a stock suspension. look into some new shocks and some wider a arms Quote
bansh-man Posted December 6, 2007 Author Report Posted December 6, 2007 o yeah and i did my own tiny prot and polish job on it.... nothing big a stupid question, but what needs ported on it? i just did some porting on the reed intake part.....? more? Quote
Bansh-eman Posted December 6, 2007 Report Posted December 6, 2007 a stupid question, but what needs ported on it? i just did some porting on the reed intake part.....? more? you chage the duration of the intake and exhaust ports as well as open up the transfers. its not something you can jut read a book about and do, its an art. you have to be willing to destroy several sets of cylinders to perfect it. Quote
bansh-man Posted December 6, 2007 Author Report Posted December 6, 2007 you chage the duration of the intake and exhaust ports as well as open up the transfers. its not something you can jut read a book about and do, its an art. you have to be willing to destroy several sets of cylinders to perfect it. would i port the cross hatches onside the cylinder>? Quote
Bansh-eman Posted December 6, 2007 Report Posted December 6, 2007 would i port the cross hatches onside the cylinder>? ??? im assuming your talking about the tranfers? if so yes they get ported. depending on the port job the angles and the amount of metal taken will vary. like i said before, this isnt something that your going to just grab a dremel and do. the proper tools alone will cost you a few grand. its tryuley an art that takes many many hours to do. unless you already know how to port id lave it to someone that has made the mistakes and just pay them. in the end it will be much cheaper Quote
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