09 sedan 3.8 brake questions

[yoorayray]

if i replace oem calipers to 2015 genesis coupe 3.8 brembo. 1) will it fit? 2) look for brake pads for 2015 and rotors for 09?

 

[jmac404]

Just curious, why you want to do this? The factory brakes, at least on my 2013, are really great even for hard mountain runs

 

[yoorayray]

tru the oem calipers works fine @ 170k miles just wanted them juicy red brembos

 

[jmac404]

Brutally honest, the calipers are large and look great. Love the large allen bolts to show off. If what you want is to stand out, you're better off searching youtube for how to paint calipers. It can be done with them still connected so no need to bleed them.

 

[Cali Gen]

I have the brembo swap And hands down biggest bonus is the amount of rotors and you brake pads that become available for you to choose fom also you get thicker rotors up front and rear slightly smaller(few mm) but much much lager rotas and 4 piston calipers in the rear while still maintaining your big 4 pots in the front. if you get brembo rotors you HAVE to get coupe rotors as sedan rotors will not fit with the coupe rotors as well.

what they said is true though late 2012+ years got BIG (Mando is brand) 4 pot brakes that wok great however if your 09-11 this is definetely a hug upgrade. and now for me since im a 13 and traded my mandos to another use who was selling his car i can tell you this is still very much an upgrade on paper theyre close in practical on the street use the brembos are saaaucy

 

[jmac404]

How do you handle the different braking forces front/rear? In "legit" brembo swaps they include a method to prevent overbraking the rear

 

[Cali Gen]

How do you handle the different braking forces front/rear? In "legit" brembo swaps they include a method to prevent overbraking the rear

Im not an expert i did this myself in a garage with a self bleeder lol but from what i feel is that as far as stopping distance? its relatively the same but the initial bite and how long i can brake or hard brake before there is fade is much improved.. also feels like the car is stopping much more smoothly and through front and back opposed to all the stopping being done up front. but i also have perforamnce pads and rotors soo idk

 

[ddoz23]

tru the oem calipers works fine @ 170k miles just wanted them juicy red brembos

lol, the brembos do look good.

 

[jmac404]

Im not an expert i did this myself in a garage with a self bleeder lol but from what i feel is that as far as stopping distance? its relatively the same but the initial bite and how long i can brake or hard brake before there is fade is much improved.. also feels like the car is stopping much more smoothly and through front and back opposed to all the stopping being done up front. but i also have perforamnce pads and rotors soo idk

Yeah. The issue is they sort of “work” but the front / rear split of braking force is almost certainly off. You can’t (or shouldn’t) just slap on Brembos and call it a day. It’s not about brake fade or bite.

 

[Cali Gen]

Yeah. The issue is they sort of “work” but the front / rear split of braking force is almost certainly off. You can’t (or shouldn’t) just slap on Brembos and call it a day. It’s not about brake fade or bite.

I'm not really sure what you're trying to say.. the issue to me seems to be you offering up 0 information on the what what thread starter was asking about. And when I offer my REAL world experience with them you got some "hooplah about blah blah" I've ever have come anywhere close to locking up my tires front or rear slowing from 60 or from 135. our intrusive Esc works just fine with them too literally 0 issues never felt like I had one I'm not over or under braking never seen an issue and I check brakes wheels and tires every two weeks. Pads wear evenly.. I mean honestly if you want to record some 60 to 0 times on dragy or something I'd be happy to do that. Gods honest truth you put me in a life or death set up I'm goi g with my brembo set up over my OEM Mandos. Please bear in mind I drive the lighter 3.8. If I had the heavier 5.0 i would swap the equus rotors and calipers because they're the biggest available and to bolt right up.

Hate to be honest but the bigger/lighter rotors help reduce unsprung weight I'm stopping faster than your OEM mandos. Like I said I'd put my life on it. Because I have real experience with both set ups.. I'm not just speaking out of my ass.

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[jmac404]

..................... the issue to me seems to be you offering up 0 information on the what what thread starter was asking about. And when I offer my REAL world experience with them you got some "hooplah about blah blah" ...............

Dealing with proportioning valve issues on brembo conversions are very common knowledge. Simply google 'brembo conversion proportioning valve' and you will see countless threads on how to deal with the problems.

Just because you aren't capable of noticing a problem does not mean there isn't one. And you're dealing with a safety component of the car - this isn't adding a banging subwoofer or annoying exhaust, you're dealing with something pretty serious. I know that if someone were to hit and injure me or my family, and I found out they modified their brakes in frankly a very stupid and uninformed manner, I guarantee that either they or their insurance company would be writing me a very, very large check.

What you're proposing and what you've done to your vehicle without proper research is frankly totally negligent. The OP needs to be aware that any brake conversions, but especially brembos with the MUCH larger rear calipers, requires research to make sure that they are set up properly.

FYI - this has nothing to do with ESP, and unsprung weight has not a thing to do with stopping distances. I strongly suggest that you do not give folks advice on this topic.

 

[Cali Gen]

Dealing with proportioning valve issues on brembo conversions are very common knowledge. Simply google 'brembo conversion proportioning valve' and you will see countless threads on how to deal with the problems.

Just because you aren't capable of noticing a problem does not mean there isn't one. And you're dealing with a safety component of the car - this isn't adding a banging subwoofer or annoying exhaust, you're dealing with something pretty serious. I know that if someone were to hit and injure me or my family, and I found out they modified their brakes in frankly a very stupid and uninformed manner, I guarantee that either they or their insurance company would be writing me a very, very large check.

What you're proposing and what you've done to your vehicle without proper research is frankly totally negligent. The OP needs to be aware that any brake conversions, but especially brembos with the MUCH larger rear calipers, requires research to make sure that they are set up properly.

FYI - this has nothing to do with ESP, and unsprung weight has not a thing to do with stopping distances. I strongly suggest that you do not give folks advice on this topic.

That last post was from my phone and from time to time it will delete sections of what I've typed. I was listing more benefits to running the brembos ie them being able to run lighter/bigger discs reducing unsprung weight and adding more surface area for bigger brake pads blah blah it's clear you know all this. But I was not offering advice I was answering OP question. And you can make assumptions about what I did or didnt do what I have and have not done I did my research and plenty of it. I actually had read/worried about front/rear brake bias and potentially locking my up my rear tires I researched corresponding part numbers between the cars and asked questions I wanted the answers to. Quite frankly you sound like a tool ("legit brembo swap" "if someone crashed into my family blah blah blah blah") 1 these are 4 pot brembos factory from hyundai were talking about not 8k+ "legit" BBK from factory it's a luxury sedan not an amg or an m series or a formula 1 car and 2 I hope you and your family stay safe but nobody cares and nobody asked. there is no over braking front or rear to cause. Any over or understeer under hardbraking from any mph up to 135. There are plenty of threads on whether or not swap is worth it or if it's just for cosmetics blah blah @RemyBluePearl and I had a convo about it back then and he had his oem calipers powder coated they looked great. Yes it's worth. If you have an 09 thru 11 3.8 big upgrade. If you have a 12 plus the OEM Mando Big brakes are more than efficient and the benefit as I said before is more from being able to pick up performance pads and rotors since there is such a big aftermarket for the coupe compared to the sedan.

I guess he just wants me to say that this specific "non legit" brembo swap is "kind of sort of all the time everytime" better than the OEM setup confirmed through idiotic real world testing. *4 family's were injured in the process. Your car will freaking explode dont do it you negligent moron.

 

[jmac404]

Respectfully, you simply don't understand the issue we have here. Lots of emotion in your post but the fact is, you're giving bad info. The proportioning cannot be the same between a single piston vs four piston rear caliper. It might "work" for you because you simple don't notice the issues, and if you personally want to take that risk then fine, however the OP and others deserve to know the intricacies of a swap like this, and that it's not as simple as it may seem.

 

[Cali Gen]

Respectfully, you simply don't understand the issue we have here. Lots of emotion in your post but the fact is, you're giving bad info. The proportioning cannot be the same between a single piston vs four piston rear caliper. It might "work" for you because you simple don't notice the issues, and if you personally want to take that risk then fine, however the OP and others deserve to know the intricacies of a swap like this, and that it's not as simple as it may seem.

Well please do inform us. Educate us all on the proportioning valve and the proper way to adjust front rear brake bias so that we can make the streets safer for you and your family.

 

[jmac404]

Listen, it's very simple to google 'which proportioning valve brembo' and you will get pages of info. I'm not going to give personal advice on it.

Generally, people either use a prop valve from the car the brakes came from or purchase an aftermarket adjustable valve. Brembos (even the pseudo brembos like on these cars) are VERY rear biased. Your ABS and to an extent ESP systems can try to compensate but it's a very poor bandaid to getting them set up properly and safely.

 

[Cali Gen]

Listen, it's very simple to google 'which proportioning valve brembo' and you will get pages of info. I'm not going to give personal advice on it.

Generally, people either use a prop valve from the car the brakes came from or purchase an aftermarket adjustable valve. Brembos (even the pseudo brembos like on these cars) are VERY rear biased. Your ABS and to an extent ESP systems can try to compensate but it's a very poor bandaid to getting them set up properly and safely.

I understand its simple..

"What you're proposing and what you've done to your vehicle without proper research is frankly totally negligent."

Idk how but Clearly you know I've done it wrong(as well as the numerous other users who have done the swap across both BH and BK platforms) and obviously I cant be trusted to do my own proper research and the info I've gathered on my own is invalid. So I would love for you to help me find the correct information we need for this specific set up so we dont die and or injure anyone else. I am asking for your help on our behalf. Think of the families.