'07 Base brake weight vs Brembo weight
#1
'07 Base brake weight vs Brembo weight
I posted this in my build/intro thread in the autocross forum but thought others here might like to know this information.
My google-fu was week and I couldn't find anything on this site about actual weights between HR base model brakes and Brembos. During the Black Friday sales I got some of the Z1 2 piece Brembo rotors and SS lines to go with the used Brembo calipers I had purchased off this forum a while ago. I finally got some time to start putting them on the car this week.
I wanted to know if the money spent on the rotors and such was worth it. I know Z1 claims weight savings on their 2 piece rotors over stock Brembo rotors but couldn't find much information on the weight of the stock '07 brake setup. So I measure parts coming off the car and parts going on the car using a bathroom scale and if light enough (<10lbs) my kitchen scale. Here's what I've found:
I like to do HPDE/PDX/track days and hope to start doing them in the Z this year so that was another reason for the upgrade. I hope the weight savings might help a little in auto-x as well.
I did weigh the Z1 SS lines and hardware at 1lb 2oz but didn't measure all the OEM lines and hardware to see if there was a difference.
My google-fu was week and I couldn't find anything on this site about actual weights between HR base model brakes and Brembos. During the Black Friday sales I got some of the Z1 2 piece Brembo rotors and SS lines to go with the used Brembo calipers I had purchased off this forum a while ago. I finally got some time to start putting them on the car this week.
I wanted to know if the money spent on the rotors and such was worth it. I know Z1 claims weight savings on their 2 piece rotors over stock Brembo rotors but couldn't find much information on the weight of the stock '07 brake setup. So I measure parts coming off the car and parts going on the car using a bathroom scale and if light enough (<10lbs) my kitchen scale. Here's what I've found:
- Brembo Calipers no pads (ea): Front: 7lb 2oz Rear: 3lb 8oz
- Stock '07 Calipers no pads (ea): Front: 14.5lbs Rear: 6lbs 2oz
- Z1 two piece rotors (ea): Front: 16.0lbs Rear: 15.0lbs
- Stock '07 86k mile rotors (ea): Front: 21.5lbs Rear: 13.5lbs
- Overall total weight savings front: 25lbs 12oz
- Overall total weight savings rear: 2lbs 4oz
I like to do HPDE/PDX/track days and hope to start doing them in the Z this year so that was another reason for the upgrade. I hope the weight savings might help a little in auto-x as well.
I did weigh the Z1 SS lines and hardware at 1lb 2oz but didn't measure all the OEM lines and hardware to see if there was a difference.
#3
These were OEM Brembo, pics of install here
https://my350z.com/forum/autocross-r...l#post10852340
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#9
350Z/370Z Tech Moderator
MY350Z.COM
MY350Z.COM
No answer to the original question but an astounding side fact... I removed the calipers on my Benz to check the overall condition when I first got it and was ASTOUNDED by how light they were.
Forged aluminum and probably about same weight (as measured with my calibrated hands ) as my Z's non-Brems.
8-pots loaded with four pads per caliper and 360mm two-piece rotors. And these are just "standard AMG". Apparently there was a performance option ($14k!!) on later year SL55/65 that UPGRADED this setup to even lighter calipers, lighter, larger diameter rotors (along with some other sport features overall). Probably enough stopping power for a loaded Freightliner...
Funny thing I find about this is that 95%+ of the "030 performance option" buyers will NEVER use them to their advantage/potential. But SWAG FACTOR, oh swoon.
Forged aluminum and probably about same weight (as measured with my calibrated hands ) as my Z's non-Brems.
8-pots loaded with four pads per caliper and 360mm two-piece rotors. And these are just "standard AMG". Apparently there was a performance option ($14k!!) on later year SL55/65 that UPGRADED this setup to even lighter calipers, lighter, larger diameter rotors (along with some other sport features overall). Probably enough stopping power for a loaded Freightliner...
Funny thing I find about this is that 95%+ of the "030 performance option" buyers will NEVER use them to their advantage/potential. But SWAG FACTOR, oh swoon.
Last edited by MicVelo; 01-13-2017 at 06:32 PM.
#10
I did the same thing, but forgot to weigh the rear brakes. I got ~13.4 lbs weight savings on each front wheel including the pads. Definitely noticed the weight savings.
I do have some amazingly bad screeching in the rear I am pretty sure is due to the fact I dont have the OE shims. I won't be able to test this hypothesis until it warms up and I get the car out of storage.
I do have some amazingly bad screeching in the rear I am pretty sure is due to the fact I dont have the OE shims. I won't be able to test this hypothesis until it warms up and I get the car out of storage.
#11
If so make sure it didn't get bent at all. I had a squeal backing out of the driveway and it was the dust shields. Even though I cut them and they looked good when I torqued the wheel down and everything was in place they rubbed. I just had to get some pliers and pull the shield away from the rotors in a couple of spots.
I put Carbotech pads in mine, no shims came with them?
#12
Assuming you cut the rear dust shields when going to the Brembos?
If so make sure it didn't get bent at all. I had a squeal backing out of the driveway and it was the dust shields. Even though I cut them and they looked good when I torqued the wheel down and everything was in place they rubbed. I just had to get some pliers and pull the shield away from the rotors in a couple of spots.
I put Carbotech pads in mine, no shims came with them?
If so make sure it didn't get bent at all. I had a squeal backing out of the driveway and it was the dust shields. Even though I cut them and they looked good when I torqued the wheel down and everything was in place they rubbed. I just had to get some pliers and pull the shield away from the rotors in a couple of spots.
I put Carbotech pads in mine, no shims came with them?
I am running the carbotech AX6 pads so I expected some noise just not as much as I have. The OEM rears are supposed to have shims so I figured I might try them if I can't find anything else rubbing.
#14
The rears were cut and I has the same problem at first but everything is bent out of the way. I will check again as the problem only happens when everything is warmed up and I am braking at low speed 15-0. It's enough to make your ears bleed so somthing is wrong.
I am running the carbotech AX6 pads so I expected some noise just not as much as I have. The OEM rears are supposed to have shims so I figured I might try them if I can't find anything else rubbing.
I am running the carbotech AX6 pads so I expected some noise just not as much as I have. The OEM rears are supposed to have shims so I figured I might try them if I can't find anything else rubbing.
On a different note, do you have any ABS problems with the AX6 pads? I just did my first auto-x after switching to the Brembos, rotors, and AX6 pads. And it feels like if I even breathe hard on the pedal when auto-x it goes straight to ABS. This never happened with these pads on my M3, in fact it's the best braking car I've driven. I don't see how with the Brembo calipers, nice rotors, and the same pads on a car with less front camber and bigger tires I can't brake as good as the M3?
I've read about the "ice mode" people discuss and sometimes it feels like that, but most of the time it just feels like the ABS is coming in way too soon.
#16
6 inch cawk is my fave!
iTrader: (3)
Im looking into it... They are only like $115 from napa with a $85 core charge. Im sure they will come sandblasted and will need paint but seems like a bargain. I was going to pay $45 just for the kit to rebuild them myself but it made me curious when I found out how cheap they are...
Considering I have $850 tied up in these so far people should know they can get them cheaper and rebuilt through a chain auto parts store.
Considering I have $850 tied up in these so far people should know they can get them cheaper and rebuilt through a chain auto parts store.
#17
New Member
iTrader: (14)
^^^ Make sure what NAPA is providing you is actually OE Brembo, seems like dcains went the same route you are contemplating with good results based on this thread: https://my350z.com/forum/brakes-and-...-calipers.html
The following users liked this post:
dboyzalter (01-16-2017)
#18
Ahh, what you're describing is just the wonderful world of race pads. I had AX6 pads on my last car, E36 M3, and they did the same thing. The ones I have now on my Z also squeal when warm and slowing down at low speeds. I would say nothing is wrong, it's just the pads in my experience.
On a different note, do you have any ABS problems with the AX6 pads? I just did my first auto-x after switching to the Brembos, rotors, and AX6 pads. And it feels like if I even breathe hard on the pedal when auto-x it goes straight to ABS. This never happened with these pads on my M3, in fact it's the best braking car I've driven. I don't see how with the Brembo calipers, nice rotors, and the same pads on a car with less front camber and bigger tires I can't brake as good as the M3?
I've read about the "ice mode" people discuss and sometimes it feels like that, but most of the time it just feels like the ABS is coming in way too soon.
On a different note, do you have any ABS problems with the AX6 pads? I just did my first auto-x after switching to the Brembos, rotors, and AX6 pads. And it feels like if I even breathe hard on the pedal when auto-x it goes straight to ABS. This never happened with these pads on my M3, in fact it's the best braking car I've driven. I don't see how with the Brembo calipers, nice rotors, and the same pads on a car with less front camber and bigger tires I can't brake as good as the M3?
I've read about the "ice mode" people discuss and sometimes it feels like that, but most of the time it just feels like the ABS is coming in way too soon.
I haven't had any ABS problems with the AX6 pads they do take a lot less force than the previous HPS pads to produce the same braking performance. Abs seems to kick in at around the same point compared to the previous pads. I do sometimes seem to feel the slots in the rotors but it's different than the ABS and only under light braking.
Check out the willwood 10mm x 1.0 - Bleed Screw Kit. I am not sure if that's the correct size, they do make one that fits. It should should keep you from wrecking a caliper.
Last edited by rancor; 01-16-2017 at 01:10 PM.
The following users liked this post:
dboyzalter (01-16-2017)