So who all rides motorcycles?????

[NWSharpshooter]

4th near redline could do one more shift, but that takes some time. When I get the air shift installed I can play with shift points somewhat.

I would think 4th gear redline would be somewhere around 180+.

143 would be about third gear redline no?

Genuinely curios. Wondering if you are shifting sooner than I would for some reason. I know on my buddies busa that tire would usually leave the ground around 8 k under hard acceleration no matter what gear it was in.

 

[NWSharpshooter]

As do all sportbikes

Just saying that because he said 100+ would be in too high if a gear for a wheelie.

 

[Ken Ford]

I don't know what to tell you.. 3rd gear power wheelies are not uncommon with today's literbikes... when you are in second gear and approaching redline at just over 100mph and slam it up to third, if you are not tucking in over the front, it absolutely can bring the front end up if you are in the meat of your powerband...

A busa is designed to win at the drag strip, and as a result, the weight bias, length and chassis design is intended to keep the front down as much as possible.

Literbikes are designed to be much lighter, much shorter and they are far more wheelie prone as a result. What makes them better on a race track, makes them more prone to wheelies... what makes the busa less prone to wheelies, makes it slower around a race track...

Some issues is a difference of what we are calling a wheelie. I'm not talking the quick lift at shifting. I'm talking about a wheelie, a sustainable real wheelie.
We have a guy on 1K Suzuki bike weighs 370, with proper shift points the bike barely rises at all. He is a licensed ProStock rider and track champion at more than one track. Last week he took both street and pro classes running 8.70s at about 150+
But it's a different world you're riding in, I can only assume you use different shift points and a different style all together.
In my sport wheelies slow you down and it's avoided whenever possible, and since full on wheelies are caused by application of power at a too low of a RPM, that means you shifted wrong.
Not to mention you won't make any curve applying power the way we do anyway. I kinda figure if I can make a turn I ain't going anywhere near fast enough. LOL
Oh and don't think a Hayabusa won't wheelie. If I don't apply the clutch just right it will stand up and even do a full 360 before touching the ground. Check you tube there plenty of examples. Bike was designed for top speed, just adapts nicely to us big guys since it produces max power at 4000RPM and maintains that through about 10500RPM

Anyway long reponce to a picture thread. Come on out to the track someday, it's more challenging and addictive than you will ever believe. I've met several Road Race guys that want to improve their take off to the first turn, that don't go back to their previous passion.

 

[Ken Ford]

I would think 4th gear redline would be somewhere around 180+.

143 would be about third gear redline no?

Genuinely curios. Wondering if you are shifting sooner than I would for some reason. I know on my buddies busa that tire would usually leave the ground around 8 k under hard acceleration no matter what gear it was in.

No 6th gear red line would be somewhere around 230. Mines a 2000 the last of the factory unlimited Not to mention I'm -1 and +1 so the RPMs will be higer.
You shift at 10500 it won't lift into a wheelie. You are shifting too early. My bike probably doesn't see 8k except when I start in first. Might drop to 7500 or so but I think it's probably 8k and above after launch. Hard ot tell really, too much going on in 9.5 seconds.

 

[Ken Ford]

Oh I forgot typically with the bigger bore and and extensions most guys gear it too hard. And yes they will be wheelie prone and the waste the power. Typically if you can applie the clutch well you will see better performance with a higer ratio, closer to stock.
Lots of guys gear it -1 +5 or even harder. Easier to see short term improvements that way, but ultimately much lower than it's potential.

 

[Ken Ford]

Of course there is my old bike it's just a 1100 with a few slight modifications. It's been 7.50 at over 170mph. Setting on stands in my shop...

 

[SirBannedAlot]

No 6th gear red line would be somewhere around 230. Mines a 2000 the last of the factory unlimited Not to mention I'm -1 and +1 so the RPMs will be higer.
You shift at 10500 it won't lift into a wheelie. You are shifting too early. My bike probably doesn't see 8k except when I start in first. Might drop to 7500 or so but I think it's probably 8k and above after launch. Hard ot tell really, too much going on in 9.5 seconds.

What year is your Busa, and what size sprockets are you using, and what is redline on your bike?

 

[SirBannedAlot]

Some issues is a difference of what we are calling a wheelie. I'm not talking the quick lift at shifting. I'm talking about a wheelie, a sustainable real wheelie.
We have a guy on 1K Suzuki bike weighs 370, with proper shift points the bike barely rises at all. He is a licensed ProStock rider and track champion at more than one track. Last week he took both street and pro classes running 8.70s at about 150+
But it's a different world you're riding in, I can only assume you use different shift points and a different style all together.
In my sport wheelies slow you down and it's avoided whenever possible, and since full on wheelies are caused by application of power at a too low of a RPM, that means you shifted wrong.
Not to mention you won't make any curve applying power the way we do anyway. I kinda figure if I can make a turn I ain't going anywhere near fast enough. LOL
Oh and don't think a Hayabusa won't wheelie. If I don't apply the clutch just right it will stand up and even do a full 360 before touching the ground. Check you tube there plenty of examples. Bike was designed for top speed, just adapts nicely to us big guys since it produces max power at 4000RPM and maintains that through about 10500RPM

Anyway long responce to a picture thread. Come on out to the track someday, it's more challenging and addictive than you will ever believe. I've met several Road Race guys that want to improve their take off to the first turn, that don't go back to their previous passion.

Oh, I know that a Busa will wheelie, I am just saying that when they designed the bike, they knew what their target was... 1/4 mile and high speed king. So when you design a bike for that purpose, you design it in a way that maximizes high speed stability and straight line thrust. And as you said, a wheelie slows down acceleration...

When you design a bike to dominate at a race track, and you want it to be nimble, corner like it is on rails and transition left to right with the agility of a fruit fly... there is a trade off. Especially when you pack almost as much power as the Hayabusa, into that short, light, flickable package... That trade off is that it wants to wheelie and flick you off in the first couple gears if you are not careful...

I wasn't talking about stand up riding wheelies over 100mph... I was just talking about you are slamming through the first few gears and somewhere in the 110mph range when you slam into 3rd hard on the gas, many literbikes will lift up the front... Typically not enough to loop it, but at those speeds, when you are not expecting it, it can surprise you...

 

[DirtySouth]

I met a guy on a Busa in Luchenbach, TX while on one of my bike trips. I am sitting there having a beer at one of the tables and this Busa rolls up with luggage attached to it. Guy gets off and pulls his helmet off, and he is white headed as can be. I always thought the Busa would make a good sport touring bike with it's heavier weight and length, and he confirmed it. Said it was very comfortable with the way he had set it up and had plenty of power for passing lines of cars if needed. I want one for a sport touring rig, but I am smart enough to know that I am not responsible enough for anything much over 100hp.

 

[SirBannedAlot]

No 6th gear red line would be somewhere around 230. Mines a 2000 the last of the factory unlimited Not to mention I'm -1 and +1 so the RPMs will be higer.
You shift at 10500 it won't lift into a wheelie. You are shifting too early. My bike probably doesn't see 8k except when I start in first. Might drop to 7500 or so but I think it's probably 8k and above after launch. Hard ot tell really, too much going on in 9.5 seconds.

Using the stock 18/43 gearing, and even assuming that you have removed the top speed limiter in 6th gear, the theoretical top speed is 204mph, and that is with no wind resistance. This assumes that you are actually able to hit redline in 6th, which most bikes can't do unless you do some significant engine work.

Even then, adding HP won't overcome the gearing limits, so you either have to raise the redline, or make your gearing taller, which then takes away from acceleration...