Pretty Fast
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posted November 08, 2009 05:20 AM
To all my LSR Advocates
You guys would be better qualified to answer this than anyone. Is the ZX-14 capable of redlining in 6th gear with stock gearing or does it's speed top out at 186 before it reaches redline?
  
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Shane661
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posted November 08, 2009 05:22 AM
It will hit the limiter well before redline in 6th.
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Pretty Fast
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posted November 08, 2009 05:27 AM
Thanks Shane! About where does it redline in 6th before it hits limiter?
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Shane661
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posted November 08, 2009 05:32 AM
 Edited By: Shane661 on 8 Nov 2009 13:33
http://www.gearingcommander.com
Calculating slip, probably around 10100 actual, which would show as close to 10500 on the tach.
I did not run mine on stock gearing to the limiter, I changed the gearing and defeated the limiter. But these numbers should be very close, as the bike will pull a proven 200+ unrestricted, with some added power (on stock gearing).
Shane
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Pretty Fast
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posted November 08, 2009 06:17 AM
I'm currently running a 17/43, with 210 HP at the rear wheel, with counter sprocket bolt rounded on 1 corner. Think I can reach 200 mph with that set up or in your opinion would that be geared a bit low, (only 2 up in the rear)? Thanks!
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Shane661
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posted November 08, 2009 06:19 AM
17/43 is too much gear for 200 mph. 17/41 or even 17/40 would be better. With 210 hp you should be able to pull past 200 mph, depending on your size/weight.
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Pretty Fast
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posted November 08, 2009 06:54 AM
I'm 6'3, 225 unsuited. Even with the counter bolt rounded on 1 corner and 210 HP, you feel 17/43 would still be a little too much gear?
Also since rounding off a corner on the counter bolt, I've noticed that the speedo reads about 20 mph less at 4 grand. How much more mph do u think that will equate to at top end?
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Shane661
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posted November 08, 2009 06:56 AM
Edited By: Shane661 on 8 Nov 2009 14:57
Unless you are spinning the bike well past the stock redline, 17/43 is too much gearing. It will not reach 200 mph by the time it hits the rev limiter.
I have no idea on the speedo error. My bike reads something like 50 mph at 190+ actual. I have a speedo healer, and I just dial it down.
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Pretty Fast
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posted November 08, 2009 07:15 AM
What good does rounding a corner off the counter bolt do, performance wise besides making the speedo read less? I thought it was suppose to be a cheap method of by passing the limiter on top end.
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Shane661
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posted November 08, 2009 07:17 AM
The ecu is looking at the output from the countershaft sensor. All that rounding that nut does is fool the speed limiter...which is different from the rev limiter. The rev limiter will kick in at 10800-11000 acutal, even if you have bypassed the speed limiter.
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Pretty Fast
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posted November 08, 2009 07:27 AM
Right, I understand that but with stock gearing, lets say the bike redlines at 10,500, will rounding the bolt allow me to take the bike to redline in 6th?
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Shane661
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posted November 08, 2009 07:30 AM
Yes.
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Pretty Fast
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posted November 08, 2009 07:53 AM
Hey thanks Shane! I appreciate the info.
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entropy
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posted November 08, 2009 08:35 AM
quote:
I'm currently running a 17/43, with 210 HP at the rear wheel, with counter sprocket bolt rounded on 1 corner. Think I can reach 200 mph with that set up or in your opinion would that be geared a bit low, (only 2 up in the rear)? Thanks!
PF,
210hp is pretty stout, what have you done to the motor?
I am about yr size, and when i had 210hp, it was a big challenge to hit 200mph in a standing mile unless there was a tailwind.
I assume you are planning to do Maxton in 2010?
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Pretty Fast
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posted November 09, 2009 08:55 PM
PF,
210hp is pretty stout, what have you done to the motor?
I am about yr size, and when i had 210hp, it was a big challenge to hit 200mph in a standing mile unless there was a tailwind.
I assume you are planning to do Maxton in 2010?
1417 kit, entropy. As far as Maxton, I would need to do a couple more things and find out about the best setup before I could say for sure if I will, but I feel it's in my future.
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entropy
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posted November 10, 2009 12:41 AM
PF,
At Maxton you can hit 200 with 210hp if you are very aggressive, 1 mile solo drag race 
Don't do it once unless you plan to do it more, LSR is VERY addicting.
great buncha folks at Maxton, you'll love it
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Pretty Fast
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posted November 15, 2009 12:43 AM
Shane and Entropy, what air pressure do u run in the front and rear tire for LSR?
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Shane661
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posted November 15, 2009 07:46 AM
Edited By: Shane661 on 15 Nov 2009 15:46
I don't always run the same pressures; it really depends on the bike and setup. I would say to start with the factory recommended settings. Many guys will run more than that; it really depends on what you feel comfortable with and how the bike responds.
The general idea is that you want to reduce rolling resistance to the minimum required for adequate traction. As you increase the pressures, particularly the in the front, you might notice that the bike loses some stability. You really should look at the whole chassis setup and tune the entire system as a whole.
So, it is not as cut and dry as one might think!
Shane
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entropy
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posted November 15, 2009 08:50 AM
quote:
Shane and Entropy, what air pressure do u run in the front and rear tire for LSR?
OEM suggested pressure is what I run.
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shiphteey
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posted November 15, 2009 06:13 PM
A rider that heavy with that much HP ain't going 200 mph without a tailwind.
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Topping out everything from Ninja 250s to nitrous ZX-14s.
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Shane661
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posted November 16, 2009 03:51 AM
Edited By: Shane661 on 16 Nov 2009 11:52
He can do it without a tailwind, but the rest of the setup will have to be pretty good. I ran 190+ on 175 hp, with my bike with bolt-on mods (but heavy stock wheels, etc), at 230+ lbs. suited.
I had no cut down tank, and a tall windscreen on the bike at the time.
Shane
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Pretty Fast
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posted November 17, 2009 10:21 PM
quote:
He can do it without a tailwind, but the rest of the setup will have to be pretty good. I ran 190+ on 175 hp, with my bike with bolt-on mods (but heavy stock wheels, etc), at 230+ lbs. suited.
I had no cut down tank, and a tall windscreen on the bike at the time.
Shane
Well heck, if u can do that with 20 HP less than me and around the same bodywgt, my chances are good. I took the 43 sprock off the back. I'm now running the stock 41 again.
How many times have u guys participated in a LSR event?
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Phantom13
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posted November 18, 2009 11:39 AM
quote:
quote:
He can do it without a tailwind, but the rest of the setup will have to be pretty good. I ran 190+ on 175 hp, with my bike with bolt-on mods (but heavy stock wheels, etc), at 230+ lbs. suited.
I had no cut down tank, and a tall windscreen on the bike at the time.
Shane
Well heck, if u can do that with 20 HP less than me and around the same bodywgt, my chances are good. I took the 43 sprock off the back. I'm now running the stock 41 again.
How many times have u guys participated in a LSR event?
That's what everyone says their first time out.
There are plenty of TURBO 14's and TURBO Busa's that can't break 200mph their first time out. It's not about horsepower!!! It's the entire package....
Aero's
Rider Skill
Gearing
Chassis
Tires
Clutch
Tuning
etc....
So many factors play into going fast, not just horsepower or power-to-weight. Everyone thinks it's easy as throwing the bike on the dyno, making big numbers and just letting her fly at WOT.....
Those same people ALWAYS end up getting a rude awakening when their 200+rwhp bikes are running in the 180mph range and they can't figure out why all these guys with way less power are going so much faster.
LSR is no different than any other form of racing, be it the 1/4 mile or Roadracing.... it's all about experience and proper set-up. Horsepower is worthless without it.
Guys like Shane661 and Entropy have literally dozens upon dozens of runs under their belts and have been playing with set-up for YEARS to get to where they are right now. Keep that in mind when you try to compare your weight and hp to theirs.
A properly set-up 175rwhp bike with an experienced rider will MOP THE FLOOR with a virgin 210rwhp LSR bike and rookie rider...... any day of the week, twice on sundays!
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before Work is inside the Dictionary."
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Shane661
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posted November 18, 2009 11:54 AM
Edited By: Shane661 on 18 Nov 2009 19:58
quote:
How many times have u guys participated in a LSR event?
I've made passes at around 14 different LSR events, on a variety of bikes. I consider myself to barely be scratching the surface, experience-wise.
Then again, I'm not a fast learner. In my case it is all about seat time; the more the better. 
Shane
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Phantom13
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posted November 18, 2009 01:02 PM
Now when you take into consideration how EXPENSIVE 14 LSR events worth of experience can be, it puts a whole new level of appreciation for the skill required to run these speeds with minimal HP.
Lots of guys forget that LSR is not like the 1/4 mile where it's a quick trip and cheap $20 fee. It costs big bucks to be a seasoned Land Speed racer, not just in entry fees but in race fuel, tires, and of course long distance travel expenses.
On top of that, you are lucky to get 8 passes all weekend... so the experienced gained per dollar is as low as it gets when compared to all other forms of racing.
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before Work is inside the Dictionary."
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