🛞Bleeders 101 - Dirt Track Sprint Car Racing
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- Опубликовано: 14 окт 2024
- How they work and so much more!!! Billy and Seth talk tire bleeders and why they’re used in sprint car racing.
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I remember during a red flag we'd all be using those copper colored one's and we'd pull into 1 and 2 at Clinton County. The crew guys would come running out with everything they could carry. Dumping fuel, asking a million questions, your sweating your ass off, what bar do you want changed, how many turns, and all I could think about was ALL OF THE HISSING and something that sometimes sounded like horns blowing!! Good times!!
I remember when the axle style bleeders first came out. A crew guy told me it was because they thought the centrifugal forces on the standard bleeders from the tires spinning was causing the setting to change on the track.
Yep, the Conroy “Pnu-control” ones… I remember them.
I dont think the centrifugal force is or was that big a deal, since the spring is so small and stiff. But the Swindell ones are here to stay.
It wasn’t the spring but the diaphragm itself. How it reacts on a tank is NOT how it’s gonna react on a rear wheel spinning so damn fast.
The “second gen was known to fail” and became known it was able to fail and let all the air out. Been told my whole life they were junk. But that goes back to product design before new development. The newer axle inserts are still able to fail from rotation momentum due to diaphragm. The new swindle bleeders I never ran, but when it’s going to open, it’s going to electronically open. Not from pressure nor the possibility of rotation momentum
Great new design. Like the red frame a lot, yellow is killer. Congratulations on the new sponsors. They picked a great sprint car team!
Back in the day was there a bleeder like a valve stem inside the rim. Enjoy all the videos Heather keep up the great work. See ya on the next video or podcast.
Love the tech stuff. If you do a video on the rear axle differences my life will be complete. My beer drinking buddy that watches your videos with me would like you to show how the oil, fuel and PS pumps mount to the engine. Do you have any shirts in 5 or 6XL??
Another great video! Thank you for taking the time to do these they are super informative for those of us that only get to watch from the grand stands.
Awesome job guys!!
Brings back a lot memories of settling bleeders !!
Again many questions answered great video !!
Loved all those Little Freddie appearance....just glad I wasn't playing a drinking game
Awesome video. Once again, very informative. Thanks for doing these tech videos.
We never had that unit that you set the bleeders with. We always worked off the spit bubble method.
I usually set the bleeders in the tire, with the spit method
Great video ive wondered about bleeders for years lol this explains the red light you can see at the ends of the axles
Good stuff! Always wondered how the swindell bleeder were held in the axle!
Awesome thanks.
Love watching your video !! Learn alot
the cat was the star of this vid...lol
Seems like the old style "quick change" bleeder designs are susceptible to centrifugal force. The diaphragms are non-zero mass and will therefore behave quite differently than they do when connected to the static tank. This is why the newer designs are packaged into axles even though that creates problems with fractured tubes.
Thank you !! I wonder how the swindell bleeder works. Very interesting. Im old school old bledder value.
Good video you should do one on on how the wing moves.
Love your page, but really this goes back with a car that will run and the money spent on that. You can start playing with this later when you know you got a fast car. If it’s not a motor, well you might get lucky
with the Swindell bleeders you didnt mention the duration setting?
Ok a few questions: What keeps the bleeders inside the axel tube? Bead locks, why not on all the wheels like the modifieds? Last question, would you drive a dirt modified if asked? Love the videos, great tech and good winter viewing . Guy from Jersey.
They have o-rings that are swelled larger than the bleeder and it gets tight when you start putting it in. Yes I would drive a late model for you
They run nitrogen only from the properties of it on the periodic table. To run nitrogen effectively you would actually have to suck the air out of it close or beyond zero without it having air into it. Nitrogen works differently and reacting differently to heat. It might be a thing of the past, but it does change the chemical combined and reaction time. If it didn’t, there would be no such thing as gas shocks
What about the 4th bleeder style??? The one where the crew chief uses wireless device to actively change pressures during the race?
I never have seen a brand rear new axle with holes in it.
Always wondered how they mounted.
Fast Cat!
About 30 days Lincoln starts.
Was just thinking about bleeders/ and illegal communications. So who has a blue tooth controlled digital bleeders?
So the axle bleeder eliminate s the rim mounted bleeder?? And axle bleeder just screws to tire stem with valve installed??
Bring Sethy back for more! He is way better than Danny!
Which Style do you normally use Billy? maybe I missed it.
Swindell
Shop cat! ❤
What about its only bleeding air out of one side of the tire? What about the back side? I had a uncle who used to live next to a guy who's son worked with a guy who used to go to the races. He said that his favorite driver ricky would bleed the air out of the backside of the tire to create more bite.
Do you set them to the pressure you start at or do you play tricks and get them higher or lower during a race?
Where you want it to bleed down too after a run and a yellow comes out.
Say you start the main at 8psi in the right rear, it will blow up from the heat of running to 12psi.
So under yellow it will BLEED back down to 8psi if you have the bleeder set their.
Do the tires not have to be balanced
The only place I have used balanced race tires was the Mile at Syracuse.
What should you set the delay on swindell bleeders at?
Usually our delay depends on the track conditions, bump it up for a big cushion and turn it down when the track is slick
I have to in the 305 cuz we can't run
305 racesavers dont allow bleeders. We run nitrogen and send the tires out a few psi lower than we want to run at.
Do you guys run nitrogen in your tires? Does that have any effect on your bleeders? Edit: Question answered @ 23:00
Pressure is pressure. If you run nitrogen you’re only looking at the scientific properties of the element in the tire on how it heats and expansion. It’s like running liquid vs gas shocks. It takes longer to heat up gas and gas is lighter than liquid. Nitrogen is lighter than air