G550 Brakes on a G63
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From: Southern California, US
02' G500, 15' G63, 17' G63
G550 Brakes on a G63
I want to fit a smaller wheel on a W463a G63 and want to put G550 brakes on the front. Can anyone tell me if this will work? Assuming I would change rotors, calipers, but would I need the brake sensor?
Thanks in advance.
Thanks in advance.
Thread Starter
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Joined: Jul 2018
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From: Southern California, US
02' G500, 15' G63, 17' G63
Yes, agreed but can you use the break pad sensors from the G63amg on G550 Calipers? Can you switch the wear sensors out and have it read correctly?
* Side note rant: The size of the calipers and rotors on the 63 are absolutely stupid and unnecessary. Some of the worlds best setups are small enough to accept 17" wheels.
* Side note rant: The size of the calipers and rotors on the 63 are absolutely stupid and unnecessary. Some of the worlds best setups are small enough to accept 17" wheels.
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From: Scottsdale AZ
2015 CLS 550 2015 ML 400 Previous 2020 GLB 250 2019 A 220 2005 ML 350 1989 300 E 2001 SL 500
Yes, agreed but can you use the break pad sensors from the G63amg on G550 Calipers? Can you switch the wear sensors out and have it read correctly?
* Side note rant: The size of the calipers and rotors on the 63 are absolutely stupid and unnecessary. Some of the worlds best setups are small enough to accept 17" wheels.
* Side note rant: The size of the calipers and rotors on the 63 are absolutely stupid and unnecessary. Some of the worlds best setups are small enough to accept 17" wheels.
The brakes on the G 63 were designed for the increased power of the car.
Put smaller brakes on it and you will run out of stopping power sooner or later.
You get into an accident and you leave yourself open to a lawsuit because you tampered with the cars brakes.
Maybe you should just trade for a G 500.
Thread Starter
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Joined: Jul 2018
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From: Southern California, US
02' G500, 15' G63, 17' G63
Frankly, this is an awful idea.
The brakes on the G 63 were designed for the increased power of the car.
Put smaller brakes on it and you will run out of stopping power sooner or later.
You get into an accident and you leave yourself open to a lawsuit because you tampered with the cars brakes.
Maybe you should just trade for a G 500.
The brakes on the G 63 were designed for the increased power of the car.
Put smaller brakes on it and you will run out of stopping power sooner or later.
You get into an accident and you leave yourself open to a lawsuit because you tampered with the cars brakes.
Maybe you should just trade for a G 500.
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From: Colorado
G550
Not a concern...stopping power is stopping power meaning a G550 going 100mph vs a G63 at the same rate of speed is the same momentum and rotational force that needs to be brought to a stop. Those brakes are tested at unrealistic speeds and braking for 99% of use. Truck will never see over 90mph. Back to my original Q, if anyone can confirm or deny swapping G550 brakes to a G63 W463a let me know.
However, the proper analysis is a G63 going 150 mph vs. a G550 going 100 mph. Stopping the G63 from 150 mph is not a concern as you're probably trying to outrun the flashing lights (lol)!
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G63, G65
Yes, agreed but can you use the break pad sensors from the G63amg on G550 Calipers? Can you switch the wear sensors out and have it read correctly?
* Side note rant: The size of the calipers and rotors on the 63 are absolutely stupid and unnecessary. Some of the worlds best setups are small enough to accept 17" wheels.
* Side note rant: The size of the calipers and rotors on the 63 are absolutely stupid and unnecessary. Some of the worlds best setups are small enough to accept 17" wheels.
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2020 G550
You could also just cut the sensor right at the brake pad and twist the two wires together. If you ever take your wheels off or just take a peek every so often at your brake pads, you'll know if that are low!!
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From: 🇨🇦
W463 G550 / C190 GTC //prev: W204 C63 507 / R170
Not a concern...stopping power is stopping power meaning a G550 going 100mph vs a G63 at the same rate of speed is the same momentum and rotational force that needs to be brought to a stop. Those brakes are tested at unrealistic speeds and braking for 99% of use. Truck will never see over 90mph. Back to my original Q, if anyone can confirm or deny swapping G550 brakes to a G63 W463a let me know.
For me, I would want the G63 brakes on the G550, and that’s the only part of the G63 I would want, otherwise I think the G550 is perfect.
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From: Colorado
G550
The G63's curb weight is spec'd at 288 lbs heavier than the G550 (5842 lbs. vs. 5554 lbs.), or about 5%. Braking relies on converting kinetic energy of motion (K = 1/2mv^2) into heat via friction by brake pads contacting brake rotors. A G63 versus a G550 (loaded with 288 lbs of compensating ballast so that both vehicles' GVWR are equal), both moving at some velocity "v" require equal amounts of kinetic energy conversion to heat to come to a full stop. Larger pads and rotors on the G63 allow faster energy conversion and thus a shorter stopping distance (and a more aggressive driving style). But to say that the G63's larger brakes are required because of its greater hp rating is inaccurate and misleading.
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From: 🇨🇦
W463 G550 / C190 GTC //prev: W204 C63 507 / R170
Yes, interesting, you are correct!
Well hopefully the G63 brakes feel better than in the G550. They are not terrible, but they could use more stopping power. But the G63 is 5% heavier, as you point out, so the brakes will have to overcome that added weight in order to be stronger than the G550.
Well hopefully the G63 brakes feel better than in the G550. They are not terrible, but they could use more stopping power. But the G63 is 5% heavier, as you point out, so the brakes will have to overcome that added weight in order to be stronger than the G550.
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2021 G550, BMW X5M, 2020 Toyota Supra LE
Not to sidetrack this thread, but doesn’t the performance, in this case size, of the brakes have more to do with staying cool and preventing brake fade?
I have a feeling the G550 brakes can lock up the tires as quickly and firmly fitted on a G63, just as well as the original G63 brakes can….?
(Not claiming this as fact, just trying to understand).
If both setup of brakes can lock up (leaving ABS out of this argument to simplify) the tires, what is the difference?
On a track, racing through the mountains, or other high performance situations, the G63 brakes would do better…. But daily driving, I don’t think it matters….?
Also, I would give up some brake size to add portals any day!
I have a feeling the G550 brakes can lock up the tires as quickly and firmly fitted on a G63, just as well as the original G63 brakes can….?
(Not claiming this as fact, just trying to understand).
If both setup of brakes can lock up (leaving ABS out of this argument to simplify) the tires, what is the difference?
On a track, racing through the mountains, or other high performance situations, the G63 brakes would do better…. But daily driving, I don’t think it matters….?
Also, I would give up some brake size to add portals any day!
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From: Colorado
G550
Yes, interesting, you are correct!
Well hopefully the G63 brakes feel better than in the G550. They are not terrible, but they could use more stopping power. But the G63 is 5% heavier, as you point out, so the brakes will have to overcome that added weight in order to be stronger than the G550.
Well hopefully the G63 brakes feel better than in the G550. They are not terrible, but they could use more stopping power. But the G63 is 5% heavier, as you point out, so the brakes will have to overcome that added weight in order to be stronger than the G550.
Larger pads and rotors are ideal for drivers such as a friend of mine who likes to hit 80 mph in his GT3 between stop signs in his neighborhood.
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M5
Not to sidetrack this thread, but doesn’t the performance, in this case size, of the brakes have more to do with staying cool and preventing brake fade?
I have a feeling the G550 brakes can lock up the tires as quickly and firmly fitted on a G63, just as well as the original G63 brakes can….?
(Not claiming this as fact, just trying to understand).
If both setup of brakes can lock up (leaving ABS out of this argument to simplify) the tires, what is the difference?
On a track, racing through the mountains, or other high performance situations, the G63 brakes would do better…. But daily driving, I don’t think it matters….?
Also, I would give up some brake size to add portals any day!
I have a feeling the G550 brakes can lock up the tires as quickly and firmly fitted on a G63, just as well as the original G63 brakes can….?
(Not claiming this as fact, just trying to understand).
If both setup of brakes can lock up (leaving ABS out of this argument to simplify) the tires, what is the difference?
On a track, racing through the mountains, or other high performance situations, the G63 brakes would do better…. But daily driving, I don’t think it matters….?
Also, I would give up some brake size to add portals any day!
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From: 🇨🇦
W463 G550 / C190 GTC //prev: W204 C63 507 / R170
Nothing to go on about. I'm also an engineer at worked at Akebono Brake in Japan.
That's why a car with larger pads and rotors stops faster and requires less pedal effort to stop. I think it's obvious?
Fade is another matter, and yes, if you cross-drill and vent you will reduce fade. But larger pads and rotors will do nothing to reduce fade on their own.
That's why a car with larger pads and rotors stops faster and requires less pedal effort to stop. I think it's obvious?
Fade is another matter, and yes, if you cross-drill and vent you will reduce fade. But larger pads and rotors will do nothing to reduce fade on their own.
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From: Colorado
G550
Nothing to go on about. I'm also an engineer at worked at Akebono Brake in Japan.
That's why a car with larger pads and rotors stops faster and requires less pedal effort to stop. I think it's obvious?
Fade is another matter, and yes, if you cross-drill and vent you will reduce fade. But larger pads and rotors will do nothing to reduce fade on their own.
That's why a car with larger pads and rotors stops faster and requires less pedal effort to stop. I think it's obvious?
Fade is another matter, and yes, if you cross-drill and vent you will reduce fade. But larger pads and rotors will do nothing to reduce fade on their own.
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M5
Nothing to go on about. I'm also an engineer at worked at Akebono Brake in Japan.
That's why a car with larger pads and rotors stops faster and requires less pedal effort to stop. I think it's obvious?
Fade is another matter, and yes, if you cross-drill and vent you will reduce fade. But larger pads and rotors will do nothing to reduce fade on their own.
That's why a car with larger pads and rotors stops faster and requires less pedal effort to stop. I think it's obvious?
Fade is another matter, and yes, if you cross-drill and vent you will reduce fade. But larger pads and rotors will do nothing to reduce fade on their own.
The common myth of abig brake kit is that your car will stop faster with larger pads and rotors because you have more surface area (thus more friction). The truth of the matter is that most likely, you already have more stopping friction in your stock brakes that you can use. If you are doing 60mph and hit the brakes as hard as you can, you will notice your ABS kicking in due to your street tires not being able to put the grip to the road. Without ABS, most likely you will find your tires locked up and skidding across the pavement. Your braking force is ultimately limited by tire grip. If you are able to lock up your tires, then you don’t need any more friction.
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From: 🇨🇦
W463 G550 / C190 GTC //prev: W204 C63 507 / R170
No, this is not really correct. I mean, you're right in a sense, but we are talking about the rate of deceleration relative to the pedal input.
"The truth of the matter is that most likely, you already have more stopping friction in your stock brakes that you can use" - this is not the point.
Think about it - larger surface area between pad and rotor = faster deceleration for a given pedal force/input.
Fade is related to heat, which is dissipated by venting and/or cross drilling. Actually, a larger pad and rotor will create more heat, not less, which means fade is more likely to occur with a larger pad/rotor. It's the venting and cross-drilling, and materials of the rotor/pad that reduce heat and therefore fade.
"The truth of the matter is that most likely, you already have more stopping friction in your stock brakes that you can use" - this is not the point.
Think about it - larger surface area between pad and rotor = faster deceleration for a given pedal force/input.
Fade is related to heat, which is dissipated by venting and/or cross drilling. Actually, a larger pad and rotor will create more heat, not less, which means fade is more likely to occur with a larger pad/rotor. It's the venting and cross-drilling, and materials of the rotor/pad that reduce heat and therefore fade.
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'13 s212 63 p30. '06 LX470
Hilarious answers to the ops question. Anybody willing to read into the question understands this will be used for overland or off-road duty. The op is not interested in braking design theory, but only if these are a different fit than stock brake calipers and rotors and if so, what brackets need to be made or purchased.
op, yes it’s possible. It is unlikely to find this type of retrofit in this site, imo. This is where you’d get no resistance over going bigger and arguments such as undersized master cylinder or improper abs programming would not matter...cause bigger is bigger.
if you went into any custom off-road store, they would be able to help you out. It’s not as though these rotors are a part of the wheel bearings. And besides you’re changing out the axles so you’ve got some welding ahead for brackets anyway.
sounds fun! Don’t let the engineers steer you. They are supposedly building in tolerances for all these broken parts we see on these boards😂. Just kidding there but an engineer may be a little too technical to simply answer yes or no.
pretty sure we don’t have to look too far back to see smaller brakes on a high powered Amg of any type.
op, yes it’s possible. It is unlikely to find this type of retrofit in this site, imo. This is where you’d get no resistance over going bigger and arguments such as undersized master cylinder or improper abs programming would not matter...cause bigger is bigger.
if you went into any custom off-road store, they would be able to help you out. It’s not as though these rotors are a part of the wheel bearings. And besides you’re changing out the axles so you’ve got some welding ahead for brackets anyway.
sounds fun! Don’t let the engineers steer you. They are supposedly building in tolerances for all these broken parts we see on these boards😂. Just kidding there but an engineer may be a little too technical to simply answer yes or no.
pretty sure we don’t have to look too far back to see smaller brakes on a high powered Amg of any type.
Last edited by Baltistyle; Nov 30, 2021 at 06:29 AM.
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From: Colorado
G550
Hilarious answers to the ops question. Anybody willing to read into the question understands this will be used for overland or off-road duty. The op is not interested in braking design theory, but only if these are a different fit than stock brake calipers and rotors and if so, what brackets need to be made or purchased..
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From: Southern California, US
02' G500, 15' G63, 17' G63
I greatly appreciate all the back and forth @Baltistyle dialed in the answer quite well as the root of my question was assertaining whether or not the switch would work given all the sensors in these new trucks. It is not a matter of stopping power that will ride the decision. Stand by for final results in the coming weeks.
