Team Angry Bullrun report

[471_Magnum]

The fasteners in the picture are 5/16 grade eight. Very strong. Unfortunately when you have a tire go down with a multipiece wheel the rim shelll usually contacts the ground through the deflated tire and creates enormous stresses on the fasteners. Typically they will shear, as in the picture. If the tire was running low for any period of time the loads on the bolts would have been very high and they would have fatigued quickly.

Bet that wouldn't have happened if he was running 15" Torq Thrusts. 

[moparstuart]

  So was it the tire failed making the bolts break and rim fail. Or was it the bolts failed and made the tire seal loose integrity ?
 

[PocketThunder]

Hey guys -

I am writing up a full report and should have it ready by tonight or tomorrow am. Right now though I just overloaded with stuff... I promise though that everyone will have a full description of everything soon.

Sorry for the  delay.

Cheers - Mike

[Kodiak]

I don't think it is really an issue of what failed but rather it was a series of events that causes issues like this. If the silicon seal is compromised in any way, small nick during mounting etc, it will create a leaking wheel. Constant air pressure against the weak spot will eventually make its way through. The wheels cool when you stop then get fairly hot when under sustained "high speed" running. This constant expansion and contraction will work the weak spot. As soon as the tire starts to go down the bolt loads go way up. Throw in bumps at 100mph and your going to have an issue. As soon as one bolt goes the loads transfer to the next bolt, now it carries twice as much and the twisting loads on the rim shells begin to come into play. As they leverage against the bolt heads they heavily load them and the bolt fatigues quickly and it then becomes a chain reaction. One bolt after the next will go. Usually there is no air left after the first one goes so the chain reaction happens very quickly. The driver stops the car and sees what unfortunately happened to Mike. Its very unlikely that the bolt failed first and ripped the seal. With 30 5/16 bolts holding the wheel together unless you hit a large pot hole or ranover something hard to create a shock load the bolts just don't break. I've seen this happen before with a racer who went off track and cut a tire down. He thought he broke the wheel bearing and drove back to the pits on a flat tire. When he arrived back in the pits 9 of the fasteners had broken. He simply replaced all the fasteners and resealed the wheel and the carried on using the wheel. Alot is happening at high speeds and its always hard to try to diagnose what happens first.
Daryle

[RallyeMike]

The fasteners in the picture are 5/16 grade eight. Very strong. Unfortunately when you have a tire go down with a multipiece wheel the rim shelll usually contacts the ground through the deflated tire and creates enormous stresses on the fasteners. Typically they will shear, as in the picture. If the tire was running low for any period of time the loads on the bolts would have been very high and they would have fatigued quickly. Take care
Daryle

Technically the bolts have failed in tension, not shear, but your failure explanation is plausible.

I love my heavy, safe STEEL rims.

[ChgrSteve67]

Doesn't sound like a very good rim for a 200mph.

I think it would look awesome with steel NASCAR rims.

[4speed]

The fasteners in the picture are 5/16 grade eight. Very strong. Unfortunately when you have a tire go down with a multipiece wheel the rim shelll usually contacts the ground through the deflated tire and creates enormous stresses on the fasteners. Typically they will shear, as in the picture. If the tire was running low for any period of time the loads on the bolts would have been very high and they would have fatigued quickly. Take care
Daryle

Technically the bolts have failed in tension, not shear, but your failure explanation is plausible.

I love my heavy, safe STEEL rims.

[Kodiak]

Steel rims look pretty bad after a tire goes down too.

Daryle

[RallyeMike]

It would look better than this one ! 

We dont really know what caused the tire to go down. It could have been a puncture, delamination, or bad valve stem......  you will have these potential issues with any wheel. A steel wheel has no bolts to break or inner seals to go bad, hence the preferred and safer wheel for my application being welded steel.

Since I believe Mike was going to maybe market these, I think I'll just wait for Mike to tell the story. For my use, it wont change my mind either way (although with the appropriate Dodgecharger.com discount, a set might find the way to one of my street cars       )

[NYCMille]

Nothing negative will be said about the wheels until we find out all the details and the problem is rectified.

[RoadraceDartGT]

Having been in the car, I can confidently say the sequence of events was bolts breaking FIRST, on a properly inflated tire THEN once enough bolts were broken, the tire went down.

[BigBlockSam]

when i raced my boss hoss . on the 1/4 mile . i checked the bolts that where keeping my back wheel together . i figured 450 hp and 200 shot of nos and only  two tires  .  i should check . they where  loose .  18" wheel half the bolts where loose. it would be hard to check that when i'm going trough the traps. Rene

[SchaefMan]

So, a car project with a deadline was finished just in time to be put on the road. Instead of a break in time, it was tested out in battle, and unfortunately, the stuff that you usually find and fix during the shake-out happened during the Rally, and the car was sidelined. I am sure it will rise again, the wheels and other issues will be resolved, and there will be a happy "Angry" family again.

The big story, after reading the blog at MrAngryInc.com, is the teamwork and people. I mean, some biker saves the day with the right plug wire. Tim McGowan, from this forum, drove 500 some miles to donate his own gas tank... That is one class act, if you ask me. Then, when "Angrier" had his final tantrum, Tim secured the Daytona, and the team continued in a Ford Fusion.... Of course, they finished in a Mercedes SUV, which was a loner from some other friends, and Team Angrier finished 3, 4, 5 & 6, after losing 2 of its vehicles. Now this is a story.

Just my opinion...

Bob

[NYCMille]

You have no idea how much Tim helped us out. People don't come any better than him, he's good people and good friend. I just hope I can eventually repay all the favors he did for us and also get him to NYC... it's a just bit different than Montana...

Thanks for mentioning the blog as well Bob - for those who want to rundown of what happened you can check it out here on my site:

http://www.mrangryinc.com/blog/

Otherwise the Daytona should be back in NYC by Saturday and then we'll work the rest of bugs out of it as we'll be doing the "Fireball Run" http://www.fireballrun.com/new/index.asp with it in Sept. This is a actually a really cool rally and one that centers around finding lost children so I am VERY excited about this.

Cheers - Mike

[471_Magnum]

I read the blog last night. Sorry to hear about all the troubles, but I am glad to hear none of the problems seem to center around any of my previous engineering. Was the coil the one on the motor when you got it? I noticed the ignition had been swapped from the Mallory to a MSD.

I finally put my Car Domain page online last night with a link to Angrier.

[moparstuart]

You have no idea how much Tim helped us out. People don't come any better than him, he's good people and good friend. I just hope I can eventually repay all the favors he did for us and also get him to NYC... it's a just bit different than Montana...

Thanks for mentioning the blog as well Bob - for those who want to rundown of what happened you can check it out here on my site:

http://www.mrangryinc.com/blog/

Otherwise the Daytona should be back in NYC by Saturday and then we'll work the rest of bugs out of it as we'll be doing the "Fireball Run" http://www.fireballrun.com/new/index.asp with it in Sept. This is a actually a really cool rally and one that centers around finding lost children so I am VERY excited about this.

Cheers - Mike

  great blog mike.  People in this hobbie never seem to amaze me , there are so many great people out their willing to help !   

[68chrgrwife]

Awesome blog....Mike you rock, after one mishap I would have packed it in...although I don't think I would have the guts in the first place to build a car and the day after it was done go on a cross country "run".  You have major big ones dude.  Good luck on the next "run".......

[Finn]

 

Just checked out those links, must have invite, be 25 or over, and come up with 17,000 or more depending on the rally?
I know its for a good cause but wow!
Ill just have to setup my own bullrun...IE get a bunch of friends, print out some stickers, pick a destination, and go. 

[Dave22443]

Ill just have to setup my own bullrun...IE get a bunch of friends, print out some stickers, pick a destination, and go. 

Count me in    Where we going? 

[tan top]

good wright up Mike     ................ :  ....  ...  looking forward to seeing it run in Anger in September