New yamaha 450 most powerfull 450 stock



12 replies to this topic
  • Ron Hamp

Posted April 12, 2014 - 12:03 PM

#1

yz450 f.JPG This is a new yz450 with a fmf complete system on pump fuel and reprogramed



  • TenCrows

Posted April 12, 2014 - 12:23 PM

#2

Wow.  Over 50 horsepower across a 4000 RPM spread? 

 

Damn!



  • Ron Hamp

Posted April 12, 2014 - 12:27 PM

#3

not only the best power of anf 450 but also the best over rev of all of them  Yamaha built a real race engine im not sure if this bike will even want cam shafts @ a pro level good fuel a vortextuner so it can be dialed in better and some light port work and a piston would put it into the 60s for hp .



  • TenCrows

Posted April 12, 2014 - 12:32 PM

#4

When I first saw the way the intake ports were laid out on the latest YZ450, I knew they had potential, but to have this much power and to still have people say that they have good, non-peaky power, that's impressive.

 

The torque curve barely has a hump it it.  Remarkable. 



  • Ron Hamp

Posted April 12, 2014 - 02:32 PM

#5

I take it your native or part native like me chipewa

  • TenCrows

Posted April 12, 2014 - 04:00 PM

#6

My father was Blackfoot, and my mother is White & Crow.  He said he forgave her for both those things. ;)



Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • grayracer513

Posted April 12, 2014 - 04:19 PM

#7

Funny stuff.  Your father sounds like my Grandfather, who used to joke about forgiving my Grandmother for being part French. :smirk:

 

Ron, good work as usual.  56-57 real horsepower is a stunning amount for a production 450 MX bike that's rideable.



  • gofaster450

Posted April 13, 2014 - 04:20 PM

#8

OK so here is a crazy question... so what are the differences that make the 14 that much stronger than the 10-13's? In addition, it sounds as if the 14 doesn't have nearly the dips and peaks throughout the curve that afflicted the 10-13's. I understand that valve size/cam profile have changed but what else?

 

From the sounds of it, the 14 would absolutely stomp my 12 in total and usable HP. What changes can be made to the 10-13's to mimic the power output and type of power the 14's are putting out?



  • Ron Hamp

Posted April 14, 2014 - 07:40 AM

#9

air cleaner mods helped the 2010 drasticly porting and cams put the power where the current model is  Yamaha basicly built a very good race engine that needs very little to be competive on the national level.



  • WYO522

Posted April 14, 2014 - 07:58 AM

#10

air cleaner mods helped the 2010 drasticly porting and cams put the power where the current model is  Yamaha basicly built a very good race engine that needs very little to be competive on the national level.

This is good to hear. I have a 2013 450 with a GYTR cnc ported head and cams, and wow what a difference! What air box mod do you recommend?



  • Yzflier977

Posted April 14, 2014 - 04:48 PM

#11

It'd be interesting to see peak numbers charted out from the various years bikes starting with the 2006 through the current beast.  Just for comparisons sake so the rest of us without the 56 HP 2014 model would be envious :banghead:



  • drtrcr400

Posted April 14, 2014 - 06:15 PM

#12

Can you post the chart for the stock pipe so we can see the difference by chance?

  • Ron Hamp

Posted April 15, 2014 - 06:13 AM

#13

Sorry I did not have the bike here with the stock pipe to dyno im thinking not much difference in top end.





Related Content

Forums
Photo

Should I buy this bike? help....... by Numsa Hul


Dirt Bike   General Dirt Bike Forums   What bike should I buy?
  • * * * * *
  • 10 replies
Forums
Photo

2016 YZ450 by CaptainKnobby


Dirt Bike   Dirt Bike Technical Forums   Suspension
  • Hot  59 replies
Forums
Photo

Megabomb Fitment by 288yz450


Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • 1 reply
Forums
Photo
Supercross

Wilson the Blue Privateer by jetfuel


Dirt Bike   Special Interest Forums   Pro Racing
  • Hot  50 replies
Forums
Photo

Chubby dad, looking at bikes , First trip to the orange/black forum ! by Slow_ride


Dirt Bike   Make / Model Specific   KTM   250-530 EXC/MXC/SXC/XC-W/XCR-W (4-Strokes)
  • Hot  28 replies
 
x

Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.