Need more power
Posted December 03, 2004 - 04:16 PM
anyhow i heard to gain a little more ponies i can install the wr crank in the yfz with no trouble for 380.00 (includes everything ,piston,rings,crank,blah)
then i will be a true 450, but why spend the money to update to a true 450??
I was wondering what kind of options you wr owners have updating the performance of the bike, and whats proven to be the most gain..
(what i want to do is install a wr crank kit in my yfz and maybe bore it out a couple of mm's..
i know you all have a yfzthread,but not many users, and you wr guys been awhile for a little longer..
Posted December 03, 2004 - 04:45 PM
web link: http://www.maxpower-...v-bb-yamaha.htm
They have specific kits for YFZ450s
The 480 stage III kit with gain you 7 HP up top and more power everywhere.
TT member DadDogRider has a special 508 kit he has helped develop with a longer stroke and you can get it there as well for a 12 hp gain and loads of torque.
I am going to be doing the 480 kit to my WR450 when I rebuild my engine for more bottom end grunt. (stock cams lower compression)
This is the better way to go than using WR parts.
Posted December 03, 2004 - 06:13 PM
max power 480 kit includes stock yfz parts, but i was wanting to convert to the wr setup to boost up in cc's... that way i can run a wr crank with a 2mm over bore to get a 470... I dont really want to go huge with the bore.. its more of a hill climbing bike, and i abuse it.
i know the wr have been out a whole lot longer than the yfz so i was hoping you all had some kind of special information about the motors that could improve my quads performance...
i have a pipe
cam mod (yz timing)
ron woods intake
-4 trail tech flywheel
Posted December 05, 2004 - 06:18 PM
Posted December 05, 2004 - 06:36 PM
i had my timing set up for yz specs