Buell Top Speed :-)

[oh9bolt]

oooooohhhhhh I figured it out you have the km/h gauges sorry for the confusion

 

[anrkizm95]

lmao [up]

 

[anrkizm95]

put a new gauge face on and put the needles on wrong.i think i was doing 180 on my way home to day but not sure cause mine was pegged but the guy in the car next to me said i was.

 

[mowgoli84]

put a new gauge face on and put the needles on wrong.i think i was doing 180 on my way home to day but not sure cause mine was pegged but the guy in the car next to me said i was

happens all the time. I'll be doin 150 and granny will pass me in the slow lane.


I however, converted my buell to run on used vegetable oil.. it will not only do 200mph now.. its capable of lift offs.. sending me to orbit.

 

[Loki]

P.S. Youre still about 10 mph off
P.S.S 200rpms wont help you at that speed.

"Problem other buell riders?"

 

[americanthunder]

weres nitto and the popcorn !!!

 

[mowgoli84]

weres nitto and the popcorn !!!

I requested him and his popcorn a little ways up the thread... thus far we are deprived of his awesome popping kernels.

just let me go get some of the vegetable oil outta my buell and i will make us some frenchie fries.

 

[americanthunder]

well hurry your ass up im gettin hungry for some snacks

 

[konarider94]

ill fill in

 

[oh9bolt]

This video was filmed in NEVER NEVER LAND where rrh481 is

 

[xtreme6669]

Damn... your 9 will SPANK my 1125!!

 

[beefy99]

But he spent 6k, come on everyone knows spending lots of money makes you go faster, especially faster than a slow 1125. Imagine if you spent 6k, you could easily do what, 200? Right?

 

[xtreme6669]

[up]

 

[28003]

But he spent 6k, come on everyone knows spending lots of money makes you go faster, especially faster than a slow 1125. Imagine if you spent 6k, you could easily do what, 200? Right?

everyone knows that. the formula is:

top speed = (money spent/IQ)*(# of friends who ride sportbikes)

 

[rrh481]

Actually I beat my friends 1125 yesterday he just beat me on top end.

 

[oh9bolt]

With all these fables being told I'm starting to think that santa claus, the tooth fairy, and the easter bunny are real things that I have blocked out...

 

[NAZA RETH 73]

Hi all. i've watched all the back and forwards wrt top speed. I have a 2003 bolt with buell race ecm, filter and exhuast. I'VE had it up to 200 kilos per hour on a straight flat road, can't remember what the revs were doing, or should i say too scared to take eyes off the road. Not sure what that is in MPH. Anyways, the emphasis of these bikes is not top speed, rather the riding experience and character of the bike, not to mention the good handling and other quirkiness that goes with it. 200 KPH is plenty fast for me thanks. Even at that speed I hear the grim reaper sharpening that blade.

Just my 2 cents worth.

 

[oh9bolt]

[up]

 

[firefighter1c57]

Here is the specs on a 2009 XB12R (From Buell.com)

Primary Drive Ratio 1.500 (57/38)

Secondary Drive Member Pitch Length (# of Teeth or # of Links) 128
You said you had a 128 tooth belt

Secondary Drive Ratio 2.407 (65/27)
and you said you had a 65 tooth rear sprocket

Transmission Ratio, 5th 1

Primary drive, * secondary drive * fifth gear ratio gives you final drive ratio, or...

1.5*2.407*1= 3.6105

I am going to take a wag at tires. We'll use mine, 180/55ZR17

Tread width * aspect ratio divided by 24.5 to get inches * 2 to get the top and bottom of the tire + rim size, so...
((180*.55/24.5)*2)+17=25.0816 [see note 1]

Now, the formula is, (RPM*Tire diameter/(gear ratio*336)=max speed [see note 2]

or, (7000*25.08)/(3.61*336)=144.7368 [see note 3]


Note 1: tire diameter doesn't take into account actual tire height, tire height may vary from batch to batch, from manufacture to manufacture. Tire height does not take into account tire wear, actual tire height may a millimeter or two. Tire height also does not take into account tire contact patch area will have a "squashing" effect on the bottom side of the tire limiting that half's actual height. Tire pressure will increase from heat at such speeds causing a slight increase in tire height. Centrifugal force will cause a slight tire height increase at such speeds.

NOTE 2: 336 is a constant.

NOTE 3: 7000 RPM is what I remember being the max RPM for my 12 engine.

Using the above formula with 7800 RPM's the max speed would be 161.278. At 7800 RPM's the valve springs would not be able to keep the valves from bouncing off their seats, "valve float" Therefor a much heavier valve spring would be needed. Such a valve spring would require the use of a overhead cam, or solid lifters as the hydraulic lifters would collapse under such a valve spring. Either scenario would require a added oiling system to achieve the necessary oil to the top of the head.

 

[WALLSXB]

Damn Firefighter that's impressive ! You lost me at POSTED .[confused]