2012+ WR450F Camshaft Upgrade Info.



187 replies to this topic
  • MidlifeCrisisGuy

Posted September 10, 2014 - 09:42 AM


As you have CLEARLY demonstrated, you don't know what the hell you're talking about, and your logical leaps are hilarious. Correlation =/ causation. You haven't demonstrated anything other your ignorance of how the FI system works. IT'S NOT LIKE A CAR!!!

 

Your 'proof' is the way you *think* you bike feels, not any actual empirical evidence. Got any measurement of ridiculous "20% more air flow" claim? No, of course you don't.

 

Tell you what, I'll bet you $1000 cold hard cash you are dead wrong about the FI system. If it really is as sophisticated as a car's system, then PROVE it or STFU. Post up schematics and part numbers of all the sensors on the WR that make that happen. You can't, because they don't exist. So... I lose, you get $1000.... I win, you don't pay anything, you just STFU and stop posting your asinine theories as 'advice'. Start a blog or something stop posting your misinformed ignorant opinions on things you clearly know nothing about. Deal?

 

ECU is schematic part #22.  MAP sensor is #28. "Intake air pressure".  Throttle position sensor is #27.  Coolant temp sensor is #30.  Intake air temp sensor is #31.  engine speed is derived from the magneto unit.  See Green/Black wire that feeds into the ECU on the top row of pins, 4th from the right.

 

EPA certified cars are closed loop.  Yamaha FI is open loop.

 

The bike runs pretty well without major adjustments all they way from fully plugged up (stock exhaust, plugged air filter) to opened up (ported head, cams, aftermarket exhaust, clean air filter).  It does so from sea level to 8,000 feet, from near freezing to 100F.  There is NO WAY it could unless it was running a speed density system that calculated airflow and adjusted fuel delivery accordingly. 

 

With a carburetor you can't even change the exhaust and have it continue to run cleanly.

 

Do you even ride your WR anymore ?


Edited by MidlifeCrisisGuy, September 10, 2014 - 09:43 AM.


  • MidlifeCrisisGuy

Posted September 10, 2014 - 09:50 AM


New cams will instantly make you faster than your buddy?  Yeah right. You really honestly believe that? What a joke, Just further proves how clueless you are, and how fixated you are on bike being more important than rider. You couldn't be more wrong, and just keep on proving it over and over again.

 

Ran my fastest lap time ever with the cam, by a long shot.  Wasn't tired either.  

 

Fastest by a lot because the engine is so awesome now, its not holding the chassis back.  Every corner, ever front wheel lift, every climb, every straight, the cam allows the engine to help the bike.  I've been TRYING TO TELL YOU ALL ALONG that would be the case but you just kept hammering away about how the WR has enough power.   IT ISN'T ABOUT PEAK POWER !!!!  Its about smoothness, engine braking, throttle response, lugging ability and over rev.  The exhaust cam improves these engines in all those ways.   WAKE UP !  Start listening !  



  • beezer

Posted September 10, 2014 - 10:49 AM


Ran my fastest lap time ever with the cam, by a long shot.  Wasn't tired either.  

 

Fastest by a lot because the engine is so awesome now, its not holding the chassis back.  Every corner, ever front wheel lift, every climb, every straight, the cam allows the engine to help the bike.  I've been TRYING TO TELL YOU ALL ALONG that would be the case but you just kept hammering away about how the WR has enough power.   IT ISN'T ABOUT PEAK POWER !!!!  Its about smoothness, engine braking, throttle response, lugging ability and over rev.  The exhaust cam improves these engines in all those ways.   WAKE UP !  Start listening !  

 

 

OKAY WE WILL!

 

I for one would just like to thank you for posting all this priceless information on the WR450.

 

I'm going to buy a new WR450 and do mine EXACTLY like you did yours.

 

Don't let the haters get you down, they can't think outside the box like you can.

 

BTW your next mod should be a big bore kit.



  • DRS

Posted September 10, 2014 - 11:11 AM


Ran my fastest lap time ever with the cam, by a long shot.  Wasn't tired either.  

 

Fastest by a lot because the engine is so awesome now, its not holding the chassis back.  Every corner, ever front wheel lift, every climb, every straight, the cam allows the engine to help the bike.  I've been TRYING TO TELL YOU ALL ALONG that would be the case but you just kept hammering away about how the WR has enough power.   IT ISN'T ABOUT PEAK POWER !!!!  Its about smoothness, engine braking, throttle response, lugging ability and over rev.  The exhaust cam improves these engines in all those ways.   WAKE UP !  Start listening !  

 

i think everyone HAS been listening to you, which is why i have questions like these.  how long was this lap?  how did you time it? was your fastest lap time a mistake free lap? how familiar are you with the course? were there any bobbles or mistakes in the slower laps? were you following anyone on the slow lap or the fast lap? were you going 100% the entire duration of the lap? what was your heart rate in the fast lap versus the lap where you were slower?  how long was the lap? where is the data that shows you went faster, and where were you faster? in corners? straighaways? hills? descents?  was the fast lap the same day as the slow lap? where the conditions the same?  these are valid questions in order to prove your theory, just saying you think you went faster, likely by accident, really says nothing, and proves less than nothing...   i thought i remembered you saying you were an engineer, well so am i, and engineers don't talk like you do, engineers prove theories with hard numbers and test data, not with overconfident vague opinions and theories open to so much interpretation.    you are talking about science and using words like "i think" "by a long shot" etc...    BTW, i cannot find "way" described anywhere online as a method for measuring anything scientific.  my nephew uses it to describe much faster he is than me, but that is about it.

 

by the way, most all of the data i just asked is available by wearing a heart monitor/gps enabled smart watch when you ride, small price to pay IF you are actually doing all of this to go faster and prove your theories,  my guess is that you are just bored and don't ride enough so you'll just say whatever and continue with the anti-science approach.  you are not doing anyone any favors by spewing all these theories without any data to back it up.  just saying.

 

why are you not sending all of your cam tuning data to yamaha engineering? i'm sure they would be interested in the data, and might even give you a job. why would you not do this if you are so confident u figured it all out?  


Edited by DRS, September 10, 2014 - 11:14 AM.


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  • MidlifeCrisisGuy

Posted September 10, 2014 - 11:34 AM


I've got better things to do than fight with you guys.  I've shared my information.  Use it or bash it, I don't care.

 

Gotta love how this forum is filled with people that never touch their bikes and yet have all the answers.  Talk is cheap.


Edited by MidlifeCrisisGuy, September 10, 2014 - 11:37 AM.


  • MidlifeCrisisGuy

Posted September 10, 2014 - 11:44 AM


BTW your next mod should be a big bore kit.

 

Ride it with the cam first and then see if you feel that way.  Its an awesome woods setup just the way it is. 

 

Riding a bored and stroked 250F feels like slow motion after you get off it.  I laugh now when I get on a 200Xc or a bored and stroked YZ125.   You crack the throttle on those and wait when you aren't used to waiting.  With my WR, its there.  NOW !  No waiting.  Its instant.  Brings a big smile to my face.  Brrraaaappp !


Edited by MidlifeCrisisGuy, September 10, 2014 - 11:48 AM.


  • DRS

Posted September 10, 2014 - 12:25 PM


I've got better things to do than fight with you guys.  I've shared my information.  Use it or bash it, I don't care.

 

Gotta love how this forum is filled with people that never touch their bikes and yet have all the answers.  Talk is cheap.

 

talk is cheap?  well if that is not the pot calling the kettle black i don't know what is...  you are on a public motorcycle forum for which you are a pretty new member, and you wanted the big stage, and you got it, so everyone was/is listening, and all you have done is talk, you shared your opinion,  and provided nothing in the way of performance results, outside of your own made up performance measuring conventions.   you are a hack and a fraud.   i'd be money you have an MBA with how over confident you are.

 

change your username to MidlifeCrisisHack, it's way more fitting.

 

gotta love how this forum is full of people that don't HAVE to touch their bikes in order to ride them.  you on the other hand are most certainly a special needs rider.


Edited by DRS, September 10, 2014 - 12:27 PM.


  • William1

Posted September 10, 2014 - 12:43 PM


Enough.

 

If you guys cannot give and take opinions without getting all upset, the thread has to be closed.

 

Things to thinkm about. If you do not like what someone says, ignore them. You can do that by hovering the persons name and select 'Ignore'. You can also simply not read the thread. You can also not respond/post in the thread.






 
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