One of the Nurburgring Vipers crashed due to tire failure

[Lawrenzo]

Ouch! Hope the driver was uninjured.

http://www.autoguide.com/auto-news/2017/09/one-nurburgring-record-attempt-viper-acrs-crashed.html?utm_medium=email&utm_campaign=Hellcat.org_sold&utm_source=Hellcat.org20170913

[ViperJon]

Where you been Lorenzo? :)

[99RT10]

Old news, I already inquired to buy it, but I think they want to keep it for posthumous reasons. :D

[VenomSnake]

Dang it! I've been following this to see if they could break the record!

[Voice of Reason]

Dodge also stopped building Vipers in August (just wanting to make sure you're all caught up on things)...

[ForTehNguyen]

this is a new and exciting topic

[Special Ed]

Old news, I already inquired to buy it, but I think they want to keep it for posthumous reasons. :D

What the heck is "posthumous reasons".

[BJG32]

Fyi...2010 ACR set the Nurburgring record. ;)

[ACR Steve]

Pontiac no longer sells cars

[ViperDC]

Old news, I already inquired to buy it, but I think they want to keep it for posthumous reasons. :D

are they fixing it?

[Scott_in_fl]

LOL, some good ones on here. You guys are brutal, but I suppose OP deserves some abuse :)

[99RT10]

What the heck is "posthumous reasons".

post·hu·mous
[ˈpäsCHəməs]
ADJECTIVE

occurring, awarded, or appearing after the death of the originator:
"he was awarded a posthumous Military Cross" · "a posthumous collection of his articles"



:D



are they fixing it?

Don't know, hope so.

[Special Ed]

[QUOTE=99RT10;318064]post·hu·mous
[ˈpäsCHəməs]
ADJECTIVE

occurring, awarded, or appearing after the death of the originator:
"he was awarded a posthumous Military Cross" · "a posthumous collection of his articles"

I know what it means. Just never have seen those two words coupled together.

[Dan Cragin]

Those Kuhmo's make me nervous.

[ACRSNK]

Pontiac no longer sells cars

Hahaha. Now that was funny!

[AZTVR]

Pontiac no longer sells cars

Damn ! and here I was saving up to buy a 2018 Solstice !

[Racingswh]

Pontiac no longer sells cars

That's ok. I've been wanting one of those Saturn's anyway.

[Lawrenzo]

Dodge also stopped building Vipers in August (just wanting to make sure you're all caught up on things)...

Sorry for being out of touch guys- I was out of town since Thursday and not following any news. :hog:

[Lawrenzo]

Where you been Lorenzo? :)

Been fighting cancer for the last couple years, but I'm now in remission so back into a Viper as a gift to myself:dude3:

[OK Falls GTS]

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By Sam McEachern Sep 01, 2017
2
One of the Nurburgring Record Attempt Viper ACRs Has Crashed

The team attempting to set a Nurburgring lap record with two Dodge Viper ACRs has crashed one of the cars following a tire failure.

According to a Facebook post on the official page for the record attempt, driver Lance Arnold had set a lap time of 7:01.3 in the Viper ACR on his first lap in the car. Things were looking good for the team, but it all went awry on Arnold’s second attempt. Whilst taking a corner at about 160 mph, the ACR’s left front tire failed. Arnold nearly saved it and just barely brushed the guardrail on the left, but then shot across the track and hit the right side guardrail. The impact was significant – heavily damaging the front right of the car and setting off the airbag.

SEE ALSO: Dodge Viper ACR Fails to set Lap Record in Nurburgring Return

This is certainly not how the Texan ‘Ring record attempt team wanted their trip to Germany to end. Making the situation even harder was that Arnold had expressed confidence the ACR could crack the 7-minute mark and may even be able to best a time of 6:57. Both Dominik and Mario Farnbacher, who had piloted the car during earlier record attempts but were busy racing this weekend, also expressed confidence that the ACR was “a mid 6:50’s car.” The team brought two ACRs along for situations just like this, but the first car was put out of commission after the drain plug for the differential fell out, leaking fluid onto the track and destroying the diff.

How is a drain plug fall out, unless someone forgot to torque it properly.Such a shame for all the effort put into this.Better check my diff to make sure it isn't just a rubber push in plug there,lol

[ACR]

Hey did you know Lincoln was shot?

[OK Falls GTS]

Hey did you know Lincoln was shot?

Was he at Nurburgring too, haha?

[Viper Girl]

http://i1127.photobucket.com/albums/l631/socalgirlz/Screen%20Shot%202017-09-13%20at%207.45.10%20PM.png

[Nemesis]

They shouldn't, they weren't meant to run at those speeds for that distance, they were built to set track lap records at 1.5-3 mile tracks, not 15 mile laps..


Those Kuhmo's make me nervous.

[Viper Girl]

Those Kuhmo's make me nervous.

You've been a Viper Tech since the beginning of Viper, care to share more info?
Was it something you saw trackside? or just the 'Ring incident all together?

[Arizona Vipers]

They shouldn't, they weren't meant to run at those speeds for that distance, they were built to set track lap records at 1.5-3 mile tracks, not 15 mile laps..

What is the most laps you have got out of a tire at INDE? Have you had one blow? If you cant do 6 laps at INDE without them blowing that is terrifying. These guys are only doing one hot lap at the Ring. If they can't run 12 miles straight on a track, then how many miles? Even on a normal track size of 2-3 miles, are you saying these tires are unsafe after a few laps? I would think Kumho would have engineered them to be able to run up to 177mph on the ACR until they cord before blowing up on the track.
If these tires cannot go 12 miles on a track without blowing up, who is using them and why?

[Vipermann]

this is a new and exciting topic

The whole 'Ring' thing was a hoax. If you look closely at the disassembled car, the background is actually all photoshopped and the image is from a new low-budget Transformers movie...

[Fatboy 18]

I did ask on the other thread but is there public video of the moment the tire blew out and the aftermath?

[KickAsp]

What is the most laps you have got out of a tire at INDE? Have you had one blow? If you cant do 6 laps at INDE without them blowing that is terrifying. These guys are only doing one hot lap at the Ring. If they can't run 12 miles straight on a track, then how many miles? Even on a normal track size of 2-3 miles, are you saying these tires are unsafe after a few laps? I would think Kumho would have engineered them to be able to run up to 177mph on the ACR until they cord before blowing up on the track.
If these tires cannot go 12 miles on a track without blowing up, who is using them and why?


The demands put on a tire, at the ring, with the long high speed corners is far more than any other track. Especially with the high downforce of the ACR. However, I agree, it's more than a little concering the tire blew out.

[viperBase1]

Been fighting cancer for the last couple years, but I'm now in remission so back into a Viper as a gift to myself:dude3:

Congrats Lawrenzo, more power to ya and your Viper.

[ViperDC]

tough crowd lol

[TrackAire]

Tires blow on the track all the time.....I've never watched a Nascar race or F1 race that did not have at least one tire failure. There are numerous reasons, pinching a curb, debris on the track, contact with the bodywork, contact with another car, etc. If the Kumho's were inherently bad or defective, we'd be seeing a lot of these things blowing out or failing on the street where there is much more crap to run over.

At pressures of 30 psi, a rock the size of a marble can lift the whole tire off the ground putting huge amounts of stress in that one spot and possible compromising the belts. The rubber tread has minimal strength, the belt structure is what is holding the tire together and keeping it from letting go. Want proof, how many of use have tracked our cars on corded tires, either knowingly or unknowingly?......and surprise, no blow out even at track speeds.

If there is any weak spot on the Kumho tire it is the front with it's ultra short sidewall (this is just my opinion, I'm not a Kumho tire engineer).....short sidewalls have less give, less lateral flex and allow the rim flange to be closer to the ground or apex curb. All of these things can add up to a tire that "may" be easier to lose the bead and release all the air out....what I would call a mechanical blowout. Of course, tire pressures also come into play on bead retention, but I would think that the pressures after 12 miles would have climbed beyond the danger point of a cold tire or low beginning psi.

In the end, we'll probably never know why the Ring Kumho failed. But, it does allow us to talk about it and be educated about the possible issues on the track and to look out for them to avoid tire failure in the future.