2:59 in the slow mo here, does the car have inboard brakes? You can see the locked wheels rocking back and forth. Is this flex in the drive shafts (axels)? From the grip of the tyre sliding slightly twisting the drive shaft and it then springing back over and over. Would this not happen if the brakes were out at the wheels like a standard car as theres less to flex? Not sure if you’d even notice or feel this when driving.
there will still be some maybe not as much but depending on the setup there is usually still some sort of end play on the shaft / half shaft - spindle axle stub, radially and horizontally at the diff side which will still cause the push back of the pads against the pistons during suspension movement and rotation of the shaft may not be as excessive as a normal brake on hub setup but will still be there they have engineered ways around this with springs and some sort of light tension against the pads to push against the rotor to help with it not going as far or even being able to return to as close to the rotor as possible without drag or little to none they do this on some factory cars already which gives you more confidence and less anxiety over the pedal being soft after a long straight or winding road and needing to brake suddenly without being able to tap the pedal first So that you can push with confidence from the get go no matter the situation abs systems do help with this sometimes aswell by keeping some residue pressure in the line in some instances if I’m not mistaken.
you could also mount the rotor on the pinion, you could actually use a smaller rotor and the brake torque is magnified by the gear ratio. running just one rotor saves weight as well. a torsen diff would send the force to the wheel that grips as well. a spool would just sent the torque to both wheels. rockwell axles do this approach.
I want to do this on my miata and then have no rear calipers or rotors at all outboard (i only run front foot operated brakes anyway) but the powerplant frame prevents this.
I worked at a parts store for a while and when ever i saw a bus/dump truck caliper i had the urge to see if it would fit over a drive shaft 😂...fully aware it would crush the drive shaft VERY easily. But just make part of it solid i guess 🤷♂️
I had this in mind before u guys made it, so was super interested. I do want to have inboard brakes at some point in my driftcar (when i have time and money to upgrade). There are calipers with 2 loops, like 2 in 1caliper from a few manufacturers, like project mu and some from thailand cant remember. For info i have started a jzx100 driftcar project, will be grassroots/pro2 spec for now.
What about for a mixed-discipline street car that will also be used as a second daily/weekend car? I'm considering ALL possibilities for my build to hopefully min/max the outcome. And by build, I mean "Take it down to the chassis and put it on a rotisserie, then go from there" It'll almost be a ground-up custom.
What about going to a single brake on the drive shaft? Similar to what monster trucks. I am guessing you dont have enough ratio on the diff to make it worth it but it might allow you to keep the inboard as hand brake and the driveshaft one for foot brake. More food for thought.
You could manage the heat with gold foil which is used in racing as a heat shield for intercoolers anyway. Here's a great video of cleaning the 24 karat gold heat shielding in a McLaren F1 road car: ua-cam.com/video/0qPgGNAgdUI/v-deo.html You can get more than enough 24K gold leaf foil to make shields for well under a grand, the stuff hammers out pretty thin. People eat it in fancy restaurants now, even Hard Rock Cafe has a 24K gold leaf burger and people have consumed it for centuries in some liquors. How trick would it be to show off too? Given that people are now making carbon fiber wheels for sports cars that weigh 15lbs each... yeah, to hell with all that mass in the wheel. Especially in your game of spinning. Colin Chapman would be proud.
Would be great if these clown would answer questions on their products on their SM accounts and here! Been asking if the E46 RTAs would fit a E36 since they 1st teased them!
love the tech , can wait to see dual inboard calipers!
2:59 in the slow mo here, does the car have inboard brakes?
You can see the locked wheels rocking back and forth. Is this flex in the drive shafts (axels)? From the grip of the tyre sliding slightly twisting the drive shaft and it then springing back over and over.
Would this not happen if the brakes were out at the wheels like a standard car as theres less to flex?
Not sure if you’d even notice or feel this when driving.
Awesome video. A lot of hot rod guys used Jaguar IRS in the 80s and early 90s because they had inboard brakes
Agree. Another thing, titanium hats would slow the heat path to the Diff.
Would think that inboard brakes would also be less susceptible / prone to caliper piston push back, for eliminating spindle / hub deflection.
there will still be some maybe not as much but depending on the setup there is usually still some sort of end play on the shaft / half shaft - spindle axle stub, radially and horizontally at the diff side which will still cause the push back of the pads against the pistons during suspension movement and rotation of the shaft may not be as excessive as a normal brake on hub setup but will still be there they have engineered ways around this with springs and some sort of light tension against the pads to push against the rotor to help with it not going as far or even being able to return to as close to the rotor as possible without drag or little to none
they do this on some factory cars already which gives you more confidence and less anxiety over the pedal being soft after a long straight or winding road and needing to brake suddenly without being able to tap the pedal first
So that you can push with confidence from the get go no matter the situation abs systems do help with this sometimes aswell by keeping some residue pressure in the line in some instances if I’m not mistaken.
I love how you are explaining something absolutely top level, with a grassroots hat on. 😂
Awesome channel, thanks for all the tech guys.
Great work Team
you could also mount the rotor on the pinion, you could actually use a smaller rotor and the brake torque is magnified by the gear ratio. running just one rotor saves weight as well. a torsen diff would send the force to the wheel that grips as well. a spool would just sent the torque to both wheels. rockwell axles do this approach.
old monster trucks when I was a kid were like that. there's a parking brakes on heavy equipment at my job that use them and they work very well
I want to do this on my miata and then have no rear calipers or rotors at all outboard (i only run front foot operated brakes anyway) but the powerplant frame prevents this.
I worked at a parts store for a while and when ever i saw a bus/dump truck caliper i had the urge to see if it would fit over a drive shaft 😂...fully aware it would crush the drive shaft VERY easily. But just make part of it solid i guess 🤷♂️
I had this in mind before u guys made it, so was super interested. I do want to have inboard brakes at some point in my driftcar (when i have time and money to upgrade). There are calipers with 2 loops, like 2 in 1caliper from a few manufacturers, like project mu and some from thailand cant remember. For info i have started a jzx100 driftcar project, will be grassroots/pro2 spec for now.
Crazy thought run two sperate brake setups inboard for the pedal, outboard for the hand brake
Pretty sweet concept, I hope it works out well.
Did you guys notice any change in the damping or ride when you took all that unspring mass inboard?
This is so cool but at the clip 2.59 are the axle flexing or what is causing the wheel going front and back?
What about for a mixed-discipline street car that will also be used as a second daily/weekend car? I'm considering ALL possibilities for my build to hopefully min/max the outcome. And by build, I mean "Take it down to the chassis and put it on a rotisserie, then go from there" It'll almost be a ground-up custom.
Any problems bleeding the rear calipers in the position you had them?
Nice and interesting video.
4:20 The calipers mounting point seems to be flexing quite a bit.
The whole diff is moving...
@@WLS_Churchilltrue
To fit 4 calipers instead of running online, Could you fit the smaller style hand wilwood calipers with the big calipers as well and it work?
What about going to a single brake on the drive shaft? Similar to what monster trucks. I am guessing you dont have enough ratio on the diff to make it worth it but it might allow you to keep the inboard as hand brake and the driveshaft one for foot brake. More food for thought.
Does the hand brake need both calipers? Interested to know if one caliper would do the job on the hand brake, and use the other on the foot brake.
Put 4 calipers on the diff.... do it.. you know you wannt do it.... shout out to the video editor.. greeen screen looks great.
Don't know it's better or not, but looks cooler for sure 😂
HMMWV/Hummer H1 use it so therefore it’s best!!
You could manage the heat with gold foil which is used in racing as a heat shield for intercoolers anyway. Here's a great video of cleaning the 24 karat gold heat shielding in a McLaren F1 road car:
ua-cam.com/video/0qPgGNAgdUI/v-deo.html
You can get more than enough 24K gold leaf foil to make shields for well under a grand, the stuff hammers out pretty thin. People eat it in fancy restaurants now, even Hard Rock Cafe has a 24K gold leaf burger and people have consumed it for centuries in some liquors. How trick would it be to show off too?
Given that people are now making carbon fiber wheels for sports cars that weigh 15lbs each... yeah, to hell with all that mass in the wheel. Especially in your game of spinning. Colin Chapman would be proud.
Do it, v2
is it FD legal?
Would be great if these clown would answer questions on their products on their SM accounts and here! Been asking if the E46 RTAs would fit a E36 since they 1st teased them!
Design a new bracket