That's not supposed to happen. Allowing the axle to wrap like that is a great way to break shit. That's why most racing rigs have 4-link setups or better on them. That one bar with a spring on it (which obviously doesn't have enough pre-load on it) just isn't cutting it. When the driveline angle changes this much, it means someone fucked up lol.
@@chapie62 lol Can't address anything I've said, so now you've got to attack my credibility? You're a special kind of special. I know what I know. Your understanding is not a requirement.
Customer states "there's like, a wiggle in the back or something" Wild setup tho, I wonder how much is helps to keep the rear-end planted over a traditional swing arm setup, good stuff!
Similar to a Hoffman third link. Yes, it controls pinion angle on acceleration. Three link suspension used to be legal in NASCAR before they created a rule regarding trailing arm length. The springy third link is also used in ASA and All pro Racing.
Lots of power. It will spin the wheels easily. As more power is laid down the top link spring (sometimes a rubber bushing) flexes . This alters the pinion angle to allow More power without the wheel spin.. it's traction control for the rear suspension.
This is a late model... Its all about weight transfer and traction... There's alot of movement side to side also.. This is the lastest and greatest suspension as of yet...
Never seen something like that, but my logic tells me that this fixture pushes the diff back under braking, by having a spring and shocks makes the transition a lot smoother mainting traction in a delicate situation like dirt. They seem to play with the angle of the suspension, as you have different angles under braking and under acceleration thanks to the bar mounted next to the joint, that seems to work as a stop to how much back the diff can twist under acceleration. Seems fun to dial in, so much going on. Edit: watching a couple more times, i don't know if playing with the angle of the diff matters that much, seems like this system allows that much angle between hubs we can see in the video. Typical 4 link for drag racing may be too stiff for the application and don't allow that kind of movement.
I've never seen a setup like that before, what's the purpose? I mean, it appears they are controlling the torque on the rear axle housing from that bracket on the differential instead of at the ends of the axle like you see on regular road cars. What is the benefit of doing it this way?
@@8180634 if you watch some dirt racing like dirt late models or something similar it gives you an outside perspective, watch the rear wheels in comparison to the body of the car. I believe this just allows alot more travel to keep traction optimal while also changing the wheel base on the left side making it shorter as in travels resulting in it turning better. But I'm not quite sure if this is the same setup but maybe it achives similar results
@@als484With dirt light models, they have enough body roll that they will carry the left front wheel off the ground during the corners. With that body roll, they now Let the left rear drop down so much. The it stays on the ground
How do you know it’s wood? And if so what’s wrong with wood for a spacer? It’s cheap, strong, light weight and easy to make. They have literally made aircraft out of wood for 100 years. Not everything needs to be billet aluminum to work. Google The De Havilland Mosquito, top speed of 400mph with two 1,700 HP Rolls-Royce Merlin V12s strapped to its wings.
@@MrLongboarder87 haha yea same with aircraft quality being used as if it's better then normal grade. because I think of the stovebolts on my dad's 46 luscombe when I hear it. Yep, high tech aircraft quality right there.
Exactly. I live about 95 miles from the track for the BOONE SUPER NATIONALS and about 90 miles north of the GREATEST SHOW ON DIRT .KNOXVILLE IOWA.lol 0:29
@@lamontbowden5063 Yes, that's a lens issue. If the ds was bent that much the U-joints wouldn't be able to handle it for very long at all. Not to mention that we'd be seeing a TON of vibration. Not only in the ds, but the rear-end, the suspension, and the camera. But yes, it does look bent. But it's not. Good catch though.
Thats alot axle wind up dont see anything positive but the diff facing downwards but if it works you thats good but the Axle looked like was for wrapping around the back bumper.
@@Wilkins22Man, whoever taught you that shit is totally wrong. Dirt Lake modes in IMC a modified. So shit, I'll do that is my. They all have axle drop you moron
That's just nuts. Here's something to think about. Why is the driveshaft not contained somehow? In drag racing they make a containment that bolts directly to the front of the pinion support as well as basic driveshaft loops. If that shaft or ujoint fails it could kill someone, the driver mainly. Idk just a thought. Cool video though
There's a lot going on there, lots of moving parts!
yes and no
That’s what she said.
The drive line angle changes damn!! Been watching dirt racing for 35 years and never knew this is what is going on under there!
That's not supposed to happen. Allowing the axle to wrap like that is a great way to break shit. That's why most racing rigs have 4-link setups or better on them. That one bar with a spring on it (which obviously doesn't have enough pre-load on it) just isn't cutting it. When the driveline angle changes this much, it means someone fucked up lol.
@@MFKR696 That rear end is a 5 link setup with a panhard bar.. lol
@@chapie62 And yet it's still doing nothing... Gee, I wonder why that is...
@@MFKR696 Where is your knowledge base coming from? Like previous experience or a forum or something?
@@chapie62 lol Can't address anything I've said, so now you've got to attack my credibility? You're a special kind of special. I know what I know. Your understanding is not a requirement.
Customer states "there's like, a wiggle in the back or something"
Wild setup tho, I wonder how much is helps to keep the rear-end planted over a traditional swing arm setup, good stuff!
Similar to a Hoffman third link. Yes, it controls pinion angle on acceleration. Three link suspension used to be legal in NASCAR before they created a rule regarding trailing arm length. The springy third link is also used in ASA and All pro Racing.
I've never seen this. Could you explain it?
Lots of power. It will spin the wheels easily. As more power is laid down the top link spring (sometimes a rubber bushing) flexes . This alters the pinion angle to allow More power without the wheel spin.. it's traction control for the rear suspension.
@@scotthouston8408
Thanks
@@scotthouston8408
How does the pinion angle affect grip?
@@heinzhaupthaar5590более плавное зацепление благодаря пружине .
That is awesome! Wonderful field R&D.
smoother ride?
Lol I bet everyone got recommended because they so confuse like me xd
I was but now i am curious
This is a late model... Its all about weight transfer and traction... There's alot of movement side to side also..
This is the lastest and greatest suspension as of yet...
Never seen something like that, but my logic tells me that this fixture pushes the diff back under braking, by having a spring and shocks makes the transition a lot smoother mainting traction in a delicate situation like dirt. They seem to play with the angle of the suspension, as you have different angles under braking and under acceleration thanks to the bar mounted next to the joint, that seems to work as a stop to how much back the diff can twist under acceleration. Seems fun to dial in, so much going on.
Edit: watching a couple more times, i don't know if playing with the angle of the diff matters that much, seems like this system allows that much angle between hubs we can see in the video. Typical 4 link for drag racing may be too stiff for the application and don't allow that kind of movement.
Thank you recommended for yet another wonderful video
I did the same set up on my rock crawler works great
I'd like to see whats the rest of the drive shaft is doing. Crazy to see all this from this angle awesome video
here from recommended, could you not have a solid linkage where you have the yellow spring?
That would limit the suspension travel. It’s not a typical setup.
porqué parece que se va a romper a cada rato?
I've never seen a setup like that before, what's the purpose? I mean, it appears they are controlling the torque on the rear axle housing from that bracket on the differential instead of at the ends of the axle like you see on regular road cars. What is the benefit of doing it this way?
@soldierofliberty and really it looks more like it's floating and not strong at all
@soldierofliberty there must be more to it. The connecting bar could be solid, but it has a spring and a dampener.
@@8180634 if you watch some dirt racing like dirt late models or something similar it gives you an outside perspective, watch the rear wheels in comparison to the body of the car. I believe this just allows alot more travel to keep traction optimal while also changing the wheel base on the left side making it shorter as in travels resulting in it turning better. But I'm not quite sure if this is the same setup but maybe it achives similar results
For those that dont understand this is a dirt track car rear suspension set up.
is this to prevent shock loads in the diff and transmission?
Care to explain it?
I thought it was a drag car but those wheel and everything looks small and spacious.....
what falls off the pumpkin housing at 0:19 mud mabey. Very nice set up
Mud
Trying to understand what I'm looking at, didn't know the rear axle moved around that much on a dirt track car,,,,, looks like Google the next stop..
From what I see is it will allow front tires to stay on the ground for better control and reduce frame twisting or cracks (just my perspective)
@@als484With dirt light models, they have enough body roll that they will carry the left front wheel off the ground during the corners. With that body roll, they now Let the left rear drop down so much. The it stays on the ground
This is probably a 6 to 800 horse. Dirt light model. And this is guess how much rear end travel there is
That wooden block really helps out that fuel cell with rigidity 🤦🏻♂️
How do you know it’s wood? And if so what’s wrong with wood for a spacer? It’s cheap, strong, light weight and easy to make. They have literally made aircraft out of wood for 100 years. Not everything needs to be billet aluminum to work. Google The De Havilland Mosquito, top speed of 400mph with two 1,700 HP Rolls-Royce Merlin V12s strapped to its wings.
@@MrLongboarder87 haha yea same with aircraft quality being used as if it's better then normal grade.
because I think of the stovebolts on my dad's 46 luscombe when I hear it.
Yep, high tech aircraft quality right there.
And that ain't wood either. It's lead weight painted white in case it falls off.duh.lol.ya need to brush up your dirt track racing there
Am I the only one that thinks the driveshaft is in a U shape?
When it says mod, Are they talking IMCA Modified?
Exactly. I live about 95 miles from the track for the BOONE SUPER NATIONALS and about 90 miles north of the GREATEST SHOW ON DIRT .KNOXVILLE IOWA.lol 0:29
Is the drive shaft suppose to bend like that?
you. are. an. idiot.
@@Supertrooper432 Well explain to me what’s going on then. Super genius..
@@Supertrooper432 The drive shafts don’t bend on any of my 4x4 vehicles. Unless there about to break. So educated me Mr. know it all........
@@lamontbowden5063 great observation, but I think what you are seeing the lens distortion in the camera:)
@@lamontbowden5063 Yes, that's a lens issue. If the ds was bent that much the U-joints wouldn't be able to handle it for very long at all. Not to mention that we'd be seeing a TON of vibration. Not only in the ds, but the rear-end, the suspension, and the camera. But yes, it does look bent. But it's not. Good catch though.
what a strange suspension setup
Why am I just seeing this now.
Thats alot axle wind up dont see anything positive but the diff facing downwards but if it works you thats good but the Axle looked like was for wrapping around the back bumper.
No chain limiter on the left rear....why not?
Because he ain't over travelling when you got your shit setup right you ain't need no dang limiting straps/chain..
Because you can see the limit is on the lower frame rail..
@@Wilkins22Man, whoever taught you that shit is totally wrong. Dirt Lake modes in IMC a modified. So shit, I'll do that is my. They all have axle drop you moron
Lol i thought this is mono shock suspension until i saw the rear one
Looks like a tuning nightmare
It can be based
next video, how to replace a blown out u-joint
что это?
Really doesn't look that strong to me but I guess it works.
Sangat rumit sekali
what vehicle is this?
Late model
@@leejohnson2550No, it's not late millions modified. Look at the tire size
Like an I m c a modified
Beaufitull
seal at 0.36
Зачем? На кардан смотреть больно!
When u too broke for good shocks????
I'm not sure
Ford 9 in rear end
That's just nuts. Here's something to think about. Why is the driveshaft not contained somehow? In drag racing they make a containment that bolts directly to the front of the pinion support as well as basic driveshaft loops. If that shaft or ujoint fails it could kill someone, the driver mainly. Idk just a thought. Cool video though
It's contained, just out of view to the right.
Yep the driver is safe from the driveshaft. Its a rule built into almost every single race car in the us
Everything about that seems awful
That it's all needed