HoseHeads.com | HoseHeads Classifieds | Racer's Auction
Home | Register | Contact | Verify Email | FAQ |
Blogs | Photo Gallery | Press Release | Results | HoseheadsClassifieds.com


Welcome Guest. Already registered? Please Login

 

Forum: HoseHeads Sprint Car General Forum (go)
Moderators: dirtonly  /  dmantx  /  hosehead


Records per page
 
Topic: Eldora carnage Email this topic to a friend | Subscribe to this TopicReport this Topic to Moderator
Page 2 of 2   of  25 replies
hardon
July 27, 2025 at 11:02:40 PM
Joined: 02/20/2005
Posts: 539
Reply
Reply to:
Posted By: Screwball on July 25 2025 at 11:00:41 AM

I watched the first two nights on Flo and the last night on Dirtvision. I was there Friday sitting in turn one where all the action was. A few observations. I think there are a few things going on here, and maybe the most important isn't being talked about.

1) It's easy to blame track prep or the track. Many are blaming the track due to what many are saying there is a hole/rut in turn one that is causing the wrecks. This may be part of the problem, but not all IMO.

2) Others say it isn't the hole because some didn't hit it. It was the cushion or the track. The dirt was very heavy this week other than Saturday due to weather/humidity. On Friday night there were a few cars that ran high 12 second laps in qualifying, with most in the 13 second range. Rico was still turning mid 13s in the feature. Saturday, even after a rain delay, the track slicked off a bit. Not as fast. Only one bad wreck and that was early. Fast track, heavy cushion - another possible/probable cause.

3) Another factor that hardly anyone brought up. A picture says a thousand words they say. I found this on Twitter and I can't find again where I found it. There was a short conversation I found very interesting. Here is the picture;

Again, I don't know who took this picture, but it is a great shot. I'm not even sure if this is at Eldora or when it was taken, but that doesn't matter. If the person who took this shot reads this - please speak up for credit. They are a photogrpher it looked like.

What we are seeing here is the left lower frame rail (see arrow) hitting the dirt. You can also see how the left rear tire is deformed as this car is entering the corner. This is/has been a common problem for quite some time. How do we know? Because many of the cars today run a "raised rail" car - which means the left lower fram rail is 1 inch higher than the right - so it is one inch higher off the track. They know this condition already exists which is why they use the "raised rail" car.

A couple of things here. When the car goes into the turn the wing and air pushes down on the left rear as shown in the picture. Speed and entry angle are major factors to how much. We don't see a rut in turn 3 because entry angles are different. If enough cars have this condition, it would in time, create a rut in the corner, or at least contribute to a rut. If the frame rail becomes a plow, there is no other thing that can happen. Track prep is useless at this point, the rut is being put in by the cars. Another contributing factor.

More importantly, IMO, when the frame rail is hitting the ground, the suspension on that corner of the car (shock, torsion bar) is doing nothing. The frame is on the ground. That isn't good and why they have a suspension to begin with. Now you have a condition which I would consider "unsafe." How do we know this bottoming out of the frame rails are not contributing to the instability of the car which is part of what's causing the wrecks? In short - the frame bottoms out and helps bounce the car into the cushion/wall.

Conclusion; there seem to be a few things going on that might explain why these wrecks are happening, and not one single thing to blame. Maybe all of them are contributing to the carnage. We only hope as fans, and racers alike, the brain trust of racing has an adult conversation about this going forward before anyone gets hurt any worse than we've already seen.

I don't know where the technology is today, but the use of CAD and 3D modeling would prove without a doubt the geometrical limitations of frame and chassis design to prevent this.

Just my 2 cents.

 



Great post and thank you for the information.  From what I saw in Eldora this was happening a bunch in turn 1 but I thought I saw it happening in turn three too?  I've seen many races, especially on bullrings where it looks like the cars would hit ruts lap after lap but this makes sense that the LR frame rail is hitting the track.  I'm not sure what to do.  I hate rules on things like minimum air pressure or shocks or whatever but I guess it was one weekend.  If this continues to be an issue maybe then you look at a rule change.



larsonfan
July 28, 2025 at 02:20:52 AM
Joined: 03/24/2013
Posts: 1520
Reply
This message was edited on July 28, 2025 at 02:25:35 AM by larsonfan

Vicious crash tonight at Lawrenceburg in the USAC ISW A main. Cummins, Grant, and Moles involved with the latter two taking nasty rides. Been a brutal last few weeks in our beloved sport. These guys and gals that srap in to these monsters will always have my utmost respect. 

* Grant tweeted that he has a broken left foot.



beezr2002
July 28, 2025 at 08:57:31 AM
Joined: 04/21/2017
Posts: 1232
Reply

If the LR frame rail aint in the dirt you aint got your car set low enough.. I heard that long ago and it holds true to some extent, you don't want to excavate the track with your frame but you need to find out how low you can go on the LR to get super close to the tracks surface. Of course when you bottom out hard on the LR is upsets the chassis, i'ts quite common in winged racing. Some drivers and teams handle it better than others. Maybe it's time for restricter plates in sprint cars since they want the top level of the sport to be like nascar. A wise driver once said "If we're going faster how is that safer?"




Murphy
July 28, 2025 at 05:14:20 PM
Joined: 05/26/2005
Posts: 3754
Reply
Reply to:
Posted By: beezr2002 on July 28 2025 at 08:57:31 AM

If the LR frame rail aint in the dirt you aint got your car set low enough.. I heard that long ago and it holds true to some extent, you don't want to excavate the track with your frame but you need to find out how low you can go on the LR to get super close to the tracks surface. Of course when you bottom out hard on the LR is upsets the chassis, i'ts quite common in winged racing. Some drivers and teams handle it better than others. Maybe it's time for restricter plates in sprint cars since they want the top level of the sport to be like nascar. A wise driver once said "If we're going faster how is that safer?"



I wonder if having a strong floor pan would keep the car fromdigging in and crashing? Is it F-1 cars that have the floor pans that shed sparks every time they bottom out?



UTRockets
July 30, 2025 at 11:33:58 AM
Joined: 06/22/2015
Posts: 138
Reply
Reply to:
Posted By: larsonfan on July 28 2025 at 02:20:52 AM

Vicious crash tonight at Lawrenceburg in the USAC ISW A main. Cummins, Grant, and Moles involved with the latter two taking nasty rides. Been a brutal last few weeks in our beloved sport. These guys and gals that srap in to these monsters will always have my utmost respect. 

* Grant tweeted that he has a broken left foot.



Add to that Stewart Friesen's wreck (although in a modified and not a sprint car) and it has been an ugly couple of weeks for dirt track racing. 



saphead
July 30, 2025 at 01:03:25 PM
Joined: 11/30/2004
Posts: 1336
Reply

Sunshines car 

 





Post Reply
You must be logged in to Post a Message.
Not a member register Here.
Already registered? Please Login





If you have a website and would like to set up a forum here at HoseHeadForums.com
please contact us by using the contact link at the top of the page.

© 2025 HoseHeadForums.com Privacy Policy