Nascar question

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DavidM
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Nascar question

Post by DavidM » Mon Nov 25, 2013 3:56 am

I know this isn't in the right section, but I think it might get the best answer here.

What could have caused that explosion on Paul Menard's car at Homestead? It blew the floorboard loose and curled up the hood even with the hood flaps. It also blew the entire hub, brake rotor, axle and wheel off. The tire changer said he would have been killed if he hadn't hesitated.

https://www.youtube.com/watch?v=NpEObbJ-hhQ
explosion.png

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John Wallace
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Re: Nascar question

Post by John Wallace » Mon Nov 25, 2013 5:51 pm

Tire got hot and blew?

Then possibly with the fire under the rear of car from the rubber, it caught the fuel on fire?

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DavidM
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Re: Nascar question

Post by DavidM » Tue Nov 26, 2013 1:35 am

The tire itself did not blow up, it was blown off. A shockwave appears (to me) to come out of the axle housing and is reflected out of the wheel well on the driver's side. So far, no one has said anything about a fuel fire that I am aware of.

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Re: Nascar question

Post by 4banger » Sat Mar 08, 2014 10:48 pm

Gear oil !! There is a pump to pump oil in the rear end to keep it cool. His rotor came apart and tore off brake line then probably caught brake fluid on fire, He was losing parts from that side all around the track. Axle got hot enough to burn out seal and pump pushed out hot oil fueling fire til tire blew.
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