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Author Topic: Fatalities in LSR  (Read 211252 times)

Offline entropy

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Re: Fatalities in LSR
« Reply #175 on: January 27, 2015, 11:42:00 AM »
hey Mika,
i know NOTHING about the really high speed stuff, but pitted with Bill a bunch of times, and worked my own low speed stuff out with help from all kinds of helpful people.
Karl
Often wrong, but never unsure!!!!!

Offline speedduck

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Re: Fatalities in LSR
« Reply #176 on: January 27, 2015, 11:54:56 AM »
High speed or low speed, i have to give credit for anyone who has the patience to analyze data and keep testing, because i don`t have such qualities  :(

Offline scott g

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Re: Fatalities in LSR
« Reply #177 on: January 29, 2015, 08:44:50 AM »
On the "things to check" list, you might add:

1)  Frame bent or twisted

(@ 200 mph, even 1mm out of line can be a problem)

2)  Steering bearings knotchy, loose, dry,  or worn.

3)  triple clamps loose, twisted or bent.

4)  Fork legs bent

5) Fork legs have equal oil levels.

6) Front axle straight.

7) Wheel bearings good and well lubricated

eight)  Swing arm pivot axle straight and properly tightened.

9)   Swing arm pivot axle bearings good and well lubricated

10)  Swing arm pivot axle true to the steering head.

11) Swing arm straight and true

12)  Rear axle straight and true, properly tightened.

13)  Rear wheel bearings good and properly lubricated.

14)  BOTH wheels have proper distance tube
between the bearings, and properly installed.

Based on my 40 years of Bonneville experiences, I can
tell you EVERY ONE of the above can be a problem !

Offline entropy

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Re: Fatalities in LSR
« Reply #178 on: January 29, 2015, 09:15:38 AM »
High speed or low speed, i have to give credit for anyone who has the patience to analyze data and keep testing, because i don`t have such qualities  :(

Mika,
You are doing most ALL that stuff, but being guided by your experience rather than a list.  The large number of safe passes you have made proves it.
Some of that stuff might make very little difference to handling at moderate speeds but may prove 110% deadly at Bill Warner speeds.

My point is that in order to get to Bill Warner speeds, the bike MUST be at the traction/wheelie balance point, maximum acceleration ALL THE WAY DOWN THE TRACK.  Many of you guys have heard Bill leave the line, rear tire screeching/squealing all thru 1st, not really spinning but slipping, bike crossed up just a bit.  It gave me chills.

IMO this takes exactly the right chassis set up and the very highest level of riding skills.  Bill used his logs to tune his chassis set up.  His speeds were not a result of just big balls + big hp.
Often wrong, but never unsure!!!!!

Offline 2fast4u2c

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Re: Fatalities in LSR
« Reply #179 on: January 29, 2015, 10:37:04 AM »
We take her out in May for some rookie passes and slow speed trials.  just need to learn her and handling.  make sure she shifts and brakes.  Work out any bugs this summer.
Guy,
Since yours is an "open build",  could you share what logging system do you have and what channels are you capturing?
3-axis accelerometer?
suspension travel F&R?
multifunction GPS?
F&R-facing cameras?

I only ask bc Bill Warner was my go-to guy for my AIMs system and we talked alot about his logging and analysis processes.  He spent a shitload of time developing his chassis/suspension config before he was able to get max acceleration.
karl

Karl, I feel the wind on my helmet for speed and count the dashed lines on the runway for distance.  If my ass slides back I'm really pulling hard.  If I fly in the air, I did something wrong.
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Offline entropy

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Re: Fatalities in LSR
« Reply #180 on: January 29, 2015, 10:43:18 AM »

Karl, I feel the wind on my helmet for speed and count the dashed lines on the runway for distance.  If my ass slides back I'm really pulling hard.  If I fly in the air, I did something wrong.
[/quote]

Bahahahahahahahahahahahahaha, that's a start.
Often wrong, but never unsure!!!!!

Offline scott g

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Re: Fatalities in LSR
« Reply #181 on: March 30, 2015, 02:34:44 PM »
If I fly in the air, I did something wrong.

Guy has a sense of humor I do like.

Good luck @ Ohio !

Offline 2fast4u2c

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Re: Fatalities in LSR
« Reply #182 on: March 31, 2015, 06:10:37 AM »
Yeah, I'm a real jokester. We'll see how much laughing I do when I'm flying like Superman.
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Offline Mike-Nightrider

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Re: Fatalities in LSR
« Reply #183 on: March 31, 2015, 06:45:35 AM »
We dont wanna see you flying Guy. Please try to stay with the wheels on the ground if possible  :mrgreen: :mrgreen: :mrgreen:
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1/8: 5.101s..........1/4: 7.801s
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Offline 2fast4u2c

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Re: Fatalities in LSR
« Reply #184 on: March 31, 2015, 05:04:42 PM »
I finally got the beast running, now when I rev it up, I about pee my pants it sounds so awesome.  Bodywork is out for paint and I'm finalizing misc wiring and crap.
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Offline scott g

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Re: Fatalities in LSR
« Reply #185 on: March 31, 2015, 07:01:35 PM »
Yeah, I'm a real jokester. We'll see how much laughing I do when I'm flying like Superman.

Nice visual......

Gut on his bike,
Flying in to fight crime,
Big red "S" on his chest........

Offline Mike-Nightrider

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Re: Fatalities in LSR
« Reply #186 on: April 01, 2015, 01:50:31 AM »
I finally got the beast running, now when I rev it up, I about pee my pants it sounds so awesome.  Bodywork is out for paint and I'm finalizing misc wiring and crap.
Sound good  :tu:  Are you riding with gas or methanol?
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1/8: 5.101s..........1/4: 7.801s
227.7mph Woodbridge/GB 2013

Offline 2fast4u2c

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Re: Fatalities in LSR
« Reply #187 on: April 01, 2015, 05:33:23 AM »
We're going to start our program off with Gas.  Easier tuning and maintenance for the start up of our program until higher HP is necessary, at least that's my thought process.  Of course, I've never been known to have good thoughts.
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Offline TrickTom1

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Re: Fatalities in LSR
« Reply #188 on: July 09, 2015, 09:08:29 PM »
https://en.m.wikipedia.org/wiki/Bill_Warner_(motorcycle_racer)

Really close to 2 years have gone by.  I know that myself and I'm sure others still think about and miss him. What a pioneer he was and a competitor.


Offline RZ350

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Re: Fatalities in LSR
« Reply #189 on: July 20, 2015, 09:48:16 PM »
Rear wheel bearings will always be something I keep an eye on.....

The pic at the starting line may have been when things started going bad with that bearing, another 3/16" of inch outward bearing movement would have left the rear wheel somewhat unstable to say the least....
« Last Edit: July 20, 2015, 09:51:10 PM by RZ350 »
1650CC APS-BG  record, 236.814 MPH at Bonneville.

242 MPH GPS

Offline RansomT

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Re: Fatalities in LSR
« Reply #190 on: July 26, 2015, 09:53:07 AM »
Which bearing is that? (type)
Fastest 1.5-Mile Pass - 252.222
Fastest 1-Mile Pass - 244.2997
Half Mile - 211.47
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Offline RZ350

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Re: Fatalities in LSR
« Reply #191 on: July 26, 2015, 03:01:04 PM »
That was the rear wheel bearing on the brake disc side, 2001 Hayabusa. There was some question if the inner spacer was left out when the tire was shaved which may have damaged the bearing...
1650CC APS-BG  record, 236.814 MPH at Bonneville.

242 MPH GPS

Offline RZ350

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Re: Fatalities in LSR
« Reply #192 on: July 26, 2015, 03:03:44 PM »
... It was a ball bearing...
1650CC APS-BG  record, 236.814 MPH at Bonneville.

242 MPH GPS

Offline RansomT

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Re: Fatalities in LSR
« Reply #193 on: July 26, 2015, 03:48:50 PM »
That was the rear wheel bearing on the brake disc side, 2001 Hayabusa. There was some question if the inner spacer was left out when the tire was shaved which may have damaged the bearing...

If that spacer was left out, then the rear wheel won't turn by hand.  The rear caliper becomes out of line and locks the rotor.
Fastest 1.5-Mile Pass - 252.222
Fastest 1-Mile Pass - 244.2997
Half Mile - 211.47
Fastest Nitrous Bike
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211.079 LTA. P/P 1350

Offline RZ350

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Re: Fatalities in LSR
« Reply #194 on: July 26, 2015, 04:16:45 PM »
no, I meant the spacer left out when the tire was shaved, the spacer was in when it was on the bike but there was a question if somehow it got taken out and the bearings taken out or put back in etc.
1650CC APS-BG  record, 236.814 MPH at Bonneville.

242 MPH GPS

Offline RZ350

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Re: Fatalities in LSR
« Reply #195 on: July 26, 2015, 04:19:18 PM »
... The thought was the bearing was sideloaded when
mounted on the centers when the wheel was shaved, I wasn't there to verify any of this I was just the rider...
1650CC APS-BG  record, 236.814 MPH at Bonneville.

242 MPH GPS

Offline Wolf

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Re: Fatalities in LSR
« Reply #196 on: July 26, 2015, 04:53:07 PM »
Very dangerous situation. Did the rider manage to keep it upright?

Offline RZ350

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Re: Fatalities in LSR
« Reply #197 on: July 26, 2015, 06:18:10 PM »
double post, sorry!
« Last Edit: July 26, 2015, 06:24:54 PM by RZ350 »
1650CC APS-BG  record, 236.814 MPH at Bonneville.

242 MPH GPS

Offline RZ350

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Re: Fatalities in LSR
« Reply #198 on: July 26, 2015, 06:23:18 PM »
yes, I was riding it! It was a record run, it wouldn't pull over 235, felt like it was trying to steer itself off the track, like a heavy side wind or something.

I couldn't figure out why it wouldnt pull over 235 until I got back to impound, and saw the bearing race sticking out of the side of the rim! It scared the hell out of me... :-)
1650CC APS-BG  record, 236.814 MPH at Bonneville.

242 MPH GPS

Offline Wolf

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Re: Fatalities in LSR
« Reply #199 on: July 26, 2015, 09:01:39 PM »
Wow. The rear wheel could have locked up completely. Very scary to have that happen at those speeds. Glad you made it.