How can people mistake Sasha's laid-back and more subtle personality for anger or impatience? I mean you guys have made videos of him before, it's obvious he's just a calm and collected person. Great video as always.
The rivets allow float and movement between the two, which stops the rotor from warping under extreme heat due to different epansion rates of the metals. The design also saves weight
The rotor, due to the fact that the heat of friction is being generated there, will be at a higher temperature than the hat. Because of this higher temperature difference, the rotor will expand radially outward at a greater rate than the hat. This difference in expansion will cause a rotor that is rigidly bolted to the hat to cause mechanical stress on the hat, pulling it outward and thus distorting it. A floating rotor can expand outward without inducing mechanical stress on the hat, because the two pieces are not rigidly attached.
some more technical talk please. venting non-directional vs directional. slotted vs blank vs drilled. differences in floating. importance of bedding in rotors. maybe even some brake fluid talk. braking cooling ducts. taking brake temps. list can go on and on. no shortage of content to talk about.
Bit of somewhat misinformation here. The Belleville washers are just to keep if from rattling in street use. Even with them turned the other way around (i.e., to where they are applying spring tension on the fastener), there is still axial float but with the in the "anti-rattle" orientation, pad knock-back can still occur since the force to compress the washer more is greater then the force to knock the pad / piston(s) back in the caliper a few thou.. Along with that, there was no mention of the radial float function of the setup. The holes in the rotor's are actually radial slots (not perfectly drilled holes like in the hat). This is specifically for thermal expansion in a radial direction to prevent belling of the assemble like 1pc (and bolted 2pc) rotors do.
@@Phuong_Nguyen_ The caliper style / type makes no difference. All the Pro's, Con's and function of two piece rotors applies the same, regardless of the type of caliper that is straddling it. Floating calipers still function on the same hydraulic principle as an fixed opposed piston caliper but are cheap to manufacture and offer more wheel clearance which is the two primary reasons why OEM use them on almost everything. Many people misunderstand how a floating and fixed opposed piston calipers function and how they really function the same regardless of the fact that one float to allow for clamp force to be applied to the outboard side of the disk where as an opposed piston caliper has a fixed body with pistons on both the inboard and outboard side to apply the clamp pressure on both sides. While multi opposed piston calipers have several advantages over a single piston floating caliper, the way they both apply clamping pressure between the pads and the rotor is still the same.
@@CJ-ty8sv I understand how floating calipers work. But someone said it might feel weird if I put floating rotors with floating calipers because the rotors can shift side to side and the floating caliper will push the rotor and move it laterally a little bit. I just don’t wanna waste $800 on some floating rotors for my calipers.
I would think that the noise from a 2 piece rotor cooling would be caused by the dissimilar metals shrinking at different rates as they cool and moving against each other.
I got these " floating" rotors from Triton Motorsports and they have regular bolts, not even washers. Looks like an impact wrench mark on the hat too. Is that bad?
Sasha reminds me of Riff Raff from Rocky Horror Picture Show: slightly detached, slightly bored, above the normal fray of the common gear heads. He knows everything, knows others don't, and isn't interested in correcting this disparity, like an eager lap dog others act like.
I have a stoptech trophy big brake kit i haven't put on yet. It came with floating rotors. Since I still street drive my car can I convert them to a fixed setup just by installing the hardware upside down to what you guys did here? Its the exact same part numbers basically for the pins? Thanks
Other than the typical reduced unsprung weight and reduced rotation inertia, they really aren't for a "performance gain" per se but rather more for durability and longevity. However, when on the level of true race tires (slicks) and true at the limit threshold braking, many drivers can notice a difference upon initial braking entering a braking zone on the track due to piston knock-back caused by knuckle flex in the previous corner. What is noticed is excessive pedal travel and thus effectively causing later than intended braking which can cause you to obviously take to turn wrong since you cant scrub the speed or overshooting the turn. While the difference might be in the hundredths to maybe a 10th or two of a second, if you are driving a car that is entering a braking zone at 120mph or more, that can be quite late on braking. Even at 120mph, a 10th of a second is almost a 20ft delay in braking (this distance is obviously greater with more MPH upon entering the braking zone) and if you are a good enough driver that is truly waiting till the very last minute to brake and are truly threshold braking, that 20ft can mean all the difference in ending up going too wide and the guy behind you overtaking you on the inside. The thing is, slower cars that do not generate the same cornering loads as faster cars wont necessarily have the same degree of knuckle flex and thus wont have the same degree as knock-back. It takes a certain can and certain driver to really see the advantage other than the typical weight. This is the problem, most "enthusiast" either don't have cars that can generate performance in other ways to see where a full floating rotor setup has a performance advantage and/or they are simply not pushing the car to the limits that they think that they are. The belling effect from thermal expansion of a one piece OE type disc is a major contributor to done drilled disc cracking among other problems. With the two piece floating setup, the "belling" is eliminated as long as there is enough radial float to allow for full thermal expansion.
Indirectly yes, they can help even out pad wear but warping rotors comes from heat so them floating can't save them from warping but can give you a bit of leeway if a rotor is slightly warped.
@@speedacademy Eh, watch how you word that though.. Yes, it is correct that you cant have a single piece floating rotor BUT you can have a 2-piece non-floating rotor.. They are called "Bolted 2-piece" assemblies. Most of Wilwood's setups are this exactly (i.e., a Two piece assembly (iron disc and aluminum hat) but the disc is solidly bolted to the hat and there is no float between the two). AP Racing also has setups like this too because many of the dirt track roundy-round cars use this setup for the weight advantage but dont really care about the float (many dont need the float). So to truly answer GEMWRC's question, NO, a 2 piese is not "necessarily" the same as "full floating" BUT if it is full float, then it definitely is 2-piece.
AdventuresWithAlan to allow the disc to expand in relation to the bell (the disc will expand at a different rate due to the disc being the bit that gets hottest and aluminium and steel expand at different rates), to reduce the effects of warping should that occur. but they aren't as well suited as fixed 2 piece discs on the road as they require more maintenance and make more noise.
Wrong, you have 2 piece fixed (bell+disc hard bolted to the bell) and 2 piece floating (bell+floating fixing bolts+disc), THEN you have solid state (one piece) discs
I like how you ask him multiple times WHY floating vs fixed and he still doesn't answer WHY. What is with this Sasha guy? At the end of the video you say "Maybe with sasha?" No, never again with sasha. He brought zero value.
The video didn't seem to actually discuss the title topic.
How can people mistake Sasha's laid-back and more subtle personality for anger or impatience? I mean you guys have made videos of him before, it's obvious he's just a calm and collected person. Great video as always.
Yup, Sasha is just a chill dude. We've been friends with him forever. He knows DP is going to bring his usual brand of goofy to the table.
loved the video. seemed like sasha wanted to punch you the whole time though haha
I know right. Serial Killer! Lol
keeping it street 2:09 he looks at the breaks then like he's gonna punch haha
haha I know its hilarious! hey if you love car videos be sure to check out my channel I have some content I think you'll enjoy!
We've known Sasha for a long time and he's just a chill dude so some of his reactions aren't as enthusiastic as ours haha
Hey thanks for commenting! Haha I understand. you guys rock! I love all your builds. hope to meet you guys someday when you come to the states!
This is not the Sasha I normally watch on the internet ;)
I don't get it
Sasha Grey
We get the advantage of a two-piece but the Floating vs Fixed isn't very clear.
The rivets allow float and movement between the two, which stops the rotor from warping under extreme heat due to different epansion rates of the metals. The design also saves weight
The rotor, due to the fact that the heat of friction is being generated there, will be at a higher temperature than the hat. Because of this higher temperature difference, the rotor will expand radially outward at a greater rate than the hat. This difference in expansion will cause a rotor that is rigidly bolted to the hat to cause mechanical stress on the hat, pulling it outward and thus distorting it. A floating rotor can expand outward without inducing mechanical stress on the hat, because the two pieces are not rigidly attached.
@@videomaniac108 Exactly !
Almost at 100k subs awesome guys!
some more technical talk please. venting non-directional vs directional. slotted vs blank vs drilled. differences in floating. importance of bedding in rotors. maybe even some brake fluid talk. braking cooling ducts. taking brake temps. list can go on and on. no shortage of content to talk about.
No
brake fluid will mess up your paint if not careful .
Good job it's contained in a resevuior and brake lines 😂 @@johnjames77
Bit of somewhat misinformation here. The Belleville washers are just to keep if from rattling in street use. Even with them turned the other way around (i.e., to where they are applying spring tension on the fastener), there is still axial float but with the in the "anti-rattle" orientation, pad knock-back can still occur since the force to compress the washer more is greater then the force to knock the pad / piston(s) back in the caliper a few thou..
Along with that, there was no mention of the radial float function of the setup. The holes in the rotor's are actually radial slots (not perfectly drilled holes like in the hat). This is specifically for thermal expansion in a radial direction to prevent belling of the assemble like 1pc (and bolted 2pc) rotors do.
That is exactly what I was thinking...
What happens if I put 2 piece rotors on floating calipers?
@@Phuong_Nguyen_ The caliper style / type makes no difference. All the Pro's, Con's and function of two piece rotors applies the same, regardless of the type of caliper that is straddling it.
Floating calipers still function on the same hydraulic principle as an fixed opposed piston caliper but are cheap to manufacture and offer more wheel clearance which is the two primary reasons why OEM use them on almost everything.
Many people misunderstand how a floating and fixed opposed piston calipers function and how they really function the same regardless of the fact that one float to allow for clamp force to be applied to the outboard side of the disk where as an opposed piston caliper has a fixed body with pistons on both the inboard and outboard side to apply the clamp pressure on both sides.
While multi opposed piston calipers have several advantages over a single piston floating caliper, the way they both apply clamping pressure between the pads and the rotor is still the same.
@@CJ-ty8sv I understand how floating calipers work. But someone said it might feel weird if I put floating rotors with floating calipers because the rotors can shift side to side and the floating caliper will push the rotor and move it laterally a little bit. I just don’t wanna waste $800 on some floating rotors for my calipers.
@@CJ-ty8sv also why do 2 piece floating rotors shift? What is the benefits of that. I really didn’t understand much of what was said in the video.
Sash is Soo Cool Calm and Collected!!He Is Confidence Inspiring🙏🤟
Sweet video! Love learning about stuff I'll never afford or need! Lol
Which threadlocker should one use on the bolts?
I would think that the noise from a 2 piece rotor cooling would be caused by the dissimilar metals shrinking at different rates as they cool and moving against each other.
Yes that is also a culprit of pinging noises.
I got these " floating" rotors from Triton Motorsports and they have regular bolts, not even washers. Looks like an impact wrench mark on the hat too. Is that bad?
Sasha reminds me of Riff Raff from Rocky Horror Picture Show: slightly detached, slightly bored, above the normal fray of the common gear heads. He knows everything, knows others don't, and isn't interested in correcting this disparity, like an eager lap dog others act like.
What's the best way to bed in pads/rotors on a non-street car? Couple slow laps around the track?
Yep, slow through the corners and then bed them on the straights with the hard braking.
I have a stoptech trophy big brake kit i haven't put on yet. It came with floating rotors. Since I still street drive my car can I convert them to a fixed setup just by installing the hardware upside down to what you guys did here? Its the exact same part numbers basically for the pins? Thanks
do the hats have to be replaced.......since he mentioned there is a hammering effect on them.
Thanks made up mind now on what 2 piece rota’s.
so in a floating format there is increased wear on the mounting points of the hub?
awesome brakes! I have them on my Z! thanks for the video!
I'd love to see one instance where a floating rotor outperformed a fixed one. Maybe, once while the braking system wasn't applied.
Other than the typical reduced unsprung weight and reduced rotation inertia, they really aren't for a "performance gain" per se but rather more for durability and longevity. However, when on the level of true race tires (slicks) and true at the limit threshold braking, many drivers can notice a difference upon initial braking entering a braking zone on the track due to piston knock-back caused by knuckle flex in the previous corner. What is noticed is excessive pedal travel and thus effectively causing later than intended braking which can cause you to obviously take to turn wrong since you cant scrub the speed or overshooting the turn. While the difference might be in the hundredths to maybe a 10th or two of a second, if you are driving a car that is entering a braking zone at 120mph or more, that can be quite late on braking. Even at 120mph, a 10th of a second is almost a 20ft delay in braking (this distance is obviously greater with more MPH upon entering the braking zone) and if you are a good enough driver that is truly waiting till the very last minute to brake and are truly threshold braking, that 20ft can mean all the difference in ending up going too wide and the guy behind you overtaking you on the inside.
The thing is, slower cars that do not generate the same cornering loads as faster cars wont necessarily have the same degree of knuckle flex and thus wont have the same degree as knock-back. It takes a certain can and certain driver to really see the advantage other than the typical weight.
This is the problem, most "enthusiast" either don't have cars that can generate performance in other ways to see where a full floating rotor setup has a performance advantage and/or they are simply not pushing the car to the limits that they think that they are.
The belling effect from thermal expansion of a one piece OE type disc is a major contributor to done drilled disc cracking among other problems. With the two piece floating setup, the "belling" is eliminated as long as there is enough radial float to allow for full thermal expansion.
At 5:39 Sasha's mixtape cover pose
did u apply loctite on the screws????
It looked like Sasha needed to get some Speed at the Academy
Was Sasha's car red at one point cause I remember watching a video a couple of years ago seeing a red Z33 with itbs.
LanEvo55 ya it was. Then blue then this colour
i always thought they had some sort of spring in there not that washer. well you learn something everyday.
Will the z28 carbon ceramic rotors fit directly on my 2016 Shelby gt350 or do I have to change the hat
Sasha is as cool as a cucumber. Good stuff.
Any plans for more tundra videos? I planning on picking up a maxcab rock warrior after seeing your double cab at gridlife
We've got a few Tundra vids in the works. Its our workhorse truck so the best way to keep it reliable is keep it stock lol!
do floating rotors also help prevent the rotors from getting warped and uneven pad wear ????
Indirectly yes, they can help even out pad wear but warping rotors comes from heat so them floating can't save them from warping but can give you a bit of leeway if a rotor is slightly warped.
Rotors dont warp. Thats a myth
Sasha's not impressed with the boys jovial spirit!
Another helpful video !! Is floating 2 piece the same as Full floating ?
Floating has to be 2-piece, there's no such thing as a single piece floating rotor.
@@speedacademy Eh, watch how you word that though.. Yes, it is correct that you cant have a single piece floating rotor BUT you can have a 2-piece non-floating rotor.. They are called "Bolted 2-piece" assemblies. Most of Wilwood's setups are this exactly (i.e., a Two piece assembly (iron disc and aluminum hat) but the disc is solidly bolted to the hat and there is no float between the two). AP Racing also has setups like this too because many of the dirt track roundy-round cars use this setup for the weight advantage but dont really care about the float (many dont need the float).
So to truly answer GEMWRC's question, NO, a 2 piese is not "necessarily" the same as "full floating" BUT if it is full float, then it definitely is 2-piece.
Was this video shooted bevor or After the 'incident' with the Red Porsche at Mont Tremplant?
Before, the car suffered a lot of damage :(
Sad to hear :( Will you do a video about the rebuild?
last footage of the KELS new look before that porsche driver pulled that dick move!
what
+Stephen Bergman at his last event some gt3 Porsche driver hit him on purpose.(or at least seems that way.) look at ONPOINT dyno TH-cam.
Sasha doesn't not look amused.
he explains with answers like "I don't know, you are the scientist"
Non float for street. Reliable and no noise. No fucking brainer
Once you hit the brakes the bolts will bind, it won't float anymore.
This video confirms that I dont need floating rotors
It's not a show car Dave!!
fucking youtube that doesn't send me the notifications for new videos...
2:04 da fauq was that! lol
Wait wait wait. Whats the point of the play again?
AdventuresWithAlan to allow the disc to expand in relation to the bell (the disc will expand at a different rate due to the disc being the bit that gets hottest and aluminium and steel expand at different rates), to reduce the effects of warping should that occur.
but they aren't as well suited as fixed 2 piece discs on the road as they require more maintenance and make more noise.
that guy has no since of humor...
s2k art 03 is probably because of his hair 😂
Bit of an awkward vid this time round
A B grade mechanic who knows about 50% of the topic
Great
wheres the vid that "blew up the internet " ?
Click the hot link.
We all get weird sometimes but, After 2:32 the humor was getting a bit weird. . . 5:23
It's common sense.. one piece rotor= no flex, solid build. 2 piece= flex because of multiple piece not solid. There..
Wrong, you have 2 piece fixed (bell+disc hard bolted to the bell) and 2 piece floating (bell+floating fixing bolts+disc), THEN you have solid state (one piece) discs
That half bald guy is arrogant af
Sasha could play as El Diablo from Suicide Squad really well. Just need tattoo face...
These guys can't stand each other 🤣🤣
I like how you ask him multiple times WHY floating vs fixed and he still doesn't answer WHY. What is with this Sasha guy?
At the end of the video you say "Maybe with sasha?" No, never again with sasha. He brought zero value.
Google it, LOL.
Ooof. Kinda awkward