Strange ticking noise

[Krazydan19]

Thanks for the help. I remember my EVo had squealers in the rear when the pads were going out. They most of really been out ?. Still can’t believe pads could be gone at 8k with steer driving?‍ ! I’ll order some pads!

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[Frenzal]

The brake wear on these brembos is pretty insane. I have 17k miles and am grinding my rears currently…. but it is an excuse to upgrade!

Rears are not Brembos...

 

[FloArm]

Rears are not Brembos...

? learn something new everyday

 

[Victorofhavoc]

Rears are not Brembos...

Why do you say that?

 

[Frenzal]

Why do you say that?

At least calipers are not Brembos (otherwise they would probably say so on the spec page). Maybe pads are...

 

[optronix]

Why do you say that?

It's actually a pretty good point... The rear brakes appear to be an afterthought on these cars. I guess there isn't much to complain about- I really can't find any fault with how the car stops or how the pedal feels- but they look kind of ridiculous, especially vs the fronts...

I'm actually not sure how the involvement with an OEM like Brembo works for car manufacturing. I'd be curious to find out... I wouldn't be surprised to discover that there's nothing more than just being a parts supplier for the front components. They may just manufacturer them to the design team at Acura's specs and that's it... so technically maybe the rears aren't truly "Brembos" after all?

I'm not saying one way or the other, I am genuinely curious and hope someone on this board knows definitively. But... on the surface they sure don't appear to say "Brembo" anywhere...?

 

[Victorofhavoc]

It's actually a pretty good point... The rear brakes appear to be an afterthought on these cars. I guess there isn't much to complain about- I really can't find any fault with how the car stops or how the pedal feels- but they look kind of ridiculous, especially vs the fronts...

I'm actually not sure how the involvement with an OEM like Brembo works for car manufacturing. I'd be curious to find out... I wouldn't be surprised to discover that there's nothing more than just being a parts supplier for the front components. They may just manufacturer them to the design team at Acura's specs and that's it... so technically maybe the rears aren't truly "Brembos" after all?

I'm not saying one way or the other, I am genuinely curious and hope someone on this board knows definitively. But... on the surface they sure don't appear to say "Brembo" anywhere...?

I haven't taken the caliper in the rear off yet, so I can't say if there's a brembo tag or stamp anywhere, but I do know for a fact that brembo does make floating calipers. Several that I've seen with an electronic parking brake actuation look a lot like the rears on ours. Fixed calipers are typically a lot more complicated to add epb to, and more prone to failure with it, as well as a lot more weight. Everything about this rear arrangement speaks to weight/cost savings from what I've seen, from the size and type of disc to how the epb actuates, and the carrier assembly.

As far as the front caliper is concerned, it's a fairly old design brembo developed in the early-mid 2000s. They spec the rotor sizing application and the pad shape. The maker (Honda) specs the piston surface area based on vehicle weight, f/r torque split, and rear sizing. The same caliper is on the c7 stingray and some caddies. So you're right that it's a "blank slate" that they manufacture to the oem spec requirements. Acura paints it though... And that's why mine are already covered in knicks, ?.

 

[Ktrw]

I haven't taken the caliper in the rear off yet, so I can't say if there's a brembo tag or stamp anywhere, but I do know for a fact that brembo does make floating calipers. Several that I've seen with an electronic parking brake actuation look a lot like the rears on ours. Fixed calipers are typically a lot more complicated to add epb to, and more prone to failure with it, as well as a lot more weight. Everything about this rear arrangement speaks to weight/cost savings from what I've seen, from the size and type of disc to how the epb actuates, and the carrier assembly.

As far as the front caliper is concerned, it's a fairly old design brembo developed in the early-mid 2000s. They spec the rotor sizing application and the pad shape. The maker (Honda) specs the piston surface area based on vehicle weight, f/r torque split, and rear sizing. The same caliper is on the c7 stingray and some caddies. So you're right that it's a "blank slate" that they manufacture to the oem spec requirements. Acura paints it though... And that's why mine are already covered in knicks, ?.

I can help out here a bit, the rear calipers are Ate, as are the rear pads. The fronts are Brembo pad and caliper obviously. I replaced them with Paragon P2s front and rear but will be trying some Endless SSM+ soon.

Stock front Brembo pad:

Honda/Ate rear pad:

Random dirty FK8 caliper off Ebay because the text is very clear:

My caliper which is very similar just a slightly different part number:

 

[Victorofhavoc]

I can help out here a bit, the rear calipers are Ate, as are the rear pads. The fronts are Brembo pad and caliper obviously. I replaced them with Paragon P2s front and rear but will be trying some Endless SSM+ soon.

Stock front Brembo pad:

Honda/Ate rear pad:

Random dirty FK8 caliper off Ebay because the text is very clear:

My caliper which is very similar just a slightly different part number:

Thanks!

Not uncommon for the oem to vary. Ate makes a pretty good caliper, and decent street pads.

I have over 5k mi on my pads and virtually no noticeable wear in rear. This includes one day at the track beating on it with carbotech xp10 pads up front and the oem in rear.

I will say, for anyone that hasn't seen my other thread or comments, that my brake fluid looked absolutely PUTRID from factory. My build date is January 2024, but I suspect the car sat in some manufacturing lot for a year or more. There was a large amount of sediment in the res, and I got a lot of gross fluid, gunk, and bubbles out from rear and front when bleeding. I would not be surprised if people on oem fluid and setup are getting weird wear or locked up calipers leading to early wear.

 

[s219]

Just on looks alone you can tell the rears are not Brembos. They would never put their name on such wimpy looking calipers. Actually, calipers may be an overstatement, they are more like clothespins.

I doubt the rears need to do much (besides vectoring, which apparently causes a shitload of pad wear) but I am surprised Acura didn't make an effort to at least make them look serious.

 

[Ktrw]

Thanks!

Not uncommon for the oem to vary. Ate makes a pretty good caliper, and decent street pads.

I have over 5k mi on my pads and virtually no noticeable wear in rear. This includes one day at the track beating on it with carbotech xp10 pads up front and the oem in rear.

I will say, for anyone that hasn't seen my other thread or comments, that my brake fluid looked absolutely PUTRID from factory. My build date is January 2024, but I suspect the car sat in some manufacturing lot for a year or more. There was a large amount of sediment in the res, and I got a lot of gross fluid, gunk, and bubbles out from rear and front when bleeding. I would not be surprised if people on oem fluid and setup are getting weird wear or locked up calipers leading to early wear.

Yeah I really want to swap the fluid out for at least some decent DOT4 fluid, since the factory stuff is a mediocre DOT3 iirc.

 

[s219]

I will say, for anyone that hasn't seen my other thread or comments, that my brake fluid looked absolutely PUTRID from factory. My build date is January 2024, but I suspect the car sat in some manufacturing lot for a year or more. There was a large amount of sediment in the res, and I got a lot of gross fluid, gunk, and bubbles out from rear and front when bleeding. I would not be surprised if people on oem fluid and setup are getting weird wear or locked up calipers leading to early wear.

I remember that. I would be more likely to suspect manufacturing contamination in the system. It happens but it's not something I'd expect from Honda. When did you buy your car? Anything manufactured in Jan 2024 would probably have been in the second half of VINS for MY 2024 production.

 

[Victorofhavoc]

Just on looks alone you can tell the rears are not Brembos. They would never put their name on such wimpy looking calipers. Actually, calipers may be an overstatement, they are more like clothespins.

I doubt the rears need to do much (besides vectoring, which apparently causes a shitload of pad wear) but I am surprised Acura didn't make an effort to at least make them look serious.

Brembo does make floating calipers. You can go to autozone and buy basic B silver floating calipers stamped with brembo on them for certain applications.

Keep in mind on most platforms the rear only does 20% of the braking, and on fwd platforms it can be as little as 10% due to the weight being up front.

Looking wimpy and being wimpy are two different things. There is nothing wrong with this caliper, and I would take it over a fixed rear setup because you can have the epb. If it was fixed, you'd need to either have a drum on the inside of the hub, adding weight, or you'd have to have a complex dual solenoid setup applying pressure to the inside and outside piston. This adds even more weight and complexity, as well as reducing wheel clearance.

 

[Victorofhavoc]

I remember that. I would be more likely to suspect manufacturing contamination in the system. It happens but it's not something I'd expect from Honda. When did you buy your car? Anything manufactured in Jan 2024 would probably have been in the second half of VINS for MY 2024 production.

I bought in May. It was sitting at the dealer since mid March.

I suspect (and this is conjecture based off what acura has quoted for assembly line process) that they built several cars most of the way in 2022 and 2023, which sat waiting for specific parts for many months. My understanding is they roll off the regular Integra line, but then underpin with the specific suspension and engine setup. I would bet the car sat in a lot outside the factory waiting for things like transmission, fender panels, fabric, etc. This theory was reinforced for me when I peeled off the oem spoiler and found a year's worth of dust and debris caked under it.

Again, all conjecture, but I have a hard time believing fluid and dust got to that level from January to May.

On another note, we'll see how the factory oil fill differs from the dealer oil fill later this year... I sent the factory fill and dealer supplied virgin oil off for testing. I will do the same again around June this year for comparison.

 

[s219]

I bought in May. It was sitting at the dealer since mid March.

I suspect (and this is conjecture based off what acura has quoted for assembly line process) that they built several cars most of the way in 2022 and 2023, which sat waiting for specific parts for many months. My understanding is they roll off the regular Integra line, but then underpin with the specific suspension and engine setup. I would bet the car sat in a lot outside the factory waiting for things like transmission, fender panels, fabric, etc. This theory was reinforced for me when I peeled off the oem spoiler and found a year's worth of dust and debris caked under it.

Production of the MY2024 ITS ramped up in May 2023 and the first cars were delivered to customers in June of 2023. The cars are made in batches of 50-100 ITS all in the same color and each car moves through the factory, from start to completion, in a few days. The line then switches to other models or other colors and they cycle.

From the data Acura put out in press releases, they produced and sold 1871 ITS cars during 2023, and we know in that time period they were selling fast. So if your VIN is higher than 1800-1900, the car definitely wasn't made any earlier than late 2023. By mid 2024, they were past 3000 and stopped production of MY24 cars in late summer, at 3983 units total. (MY25 production ramped up in August 2024).

The date on the doorjamb sticker will show the month of production and that has been accurate for every car I have seen, based on how we know the VINS progress. So that will pin down, within 30 days, when the car was produced/completed and give you a pretty good idea how old the factory brake fluid was when you took delivery.

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