09-23-2016, 01:51 AM | #1 |
Drives: 2012 victory red 2ls Join Date: Jun 2016
Location: Irwin pa
Posts: 10
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Brembo brakes
I'm looking to upgrade the brakes on my camaro and was trying to get some options. I have a 2012 2ls with the 18 inch heritage wheels. I was looking into doing the ss brembo upgrade until another option I saw. I know the ss brakes won't fit my car without bigger wheels. That was gonna be a later project. I was planning on putting foose outcast chrome wheels on. I was reading that Cadillac ats brembos may fit the 18 inch heritage wheels. Does anyone know for sure? If a spacer is needed, now big? I was thinking about this option if it will fit so I could put the crappy ugly 18s on in the winter time instead of messing up my foose wheels. If I remember right, the ats supposedly can use the stock v6 rotors. Will the ats brembos work and what would the stopping power be? If the ats brembos do fit, do I need to get an ss master ?
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09-23-2016, 10:39 AM | #2 |
Drives: 2010 2SS/RS Join Date: Dec 2009
Location: Clarksville Tennesse.
Posts: 6,089
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Dont mess around do it right the first time and go 6 piston. These will fit a 20 inch wheel and you can use the CTS-V rotor which are pretty cheap.
http://www.ebay.com/itm/GM-OEM-2015-...pXjqUb&vxp=mtr an use this thread for install. http://www.camaro5.com/forums/showthread.php?t=418667 Im building my set from used calipers.
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Orange Krush II
1LE Front sway bar, Splitter, shocks and struts, Z28 dual mode mufflers, Intake, UCA Bushings, and Toresen 3.91 Diff. 1 piece DSS Drive Shaft, ZL1/C7 Calipers, and 32mm JPSS Rear Bar. ASC race spec splitter and wicker. 6th Gen M017 Wheels. Stainless Works 1 7/8 LTs. DSE and PAFDT Suspension components. |
09-27-2016, 09:35 AM | #3 |
corner barstool sitter
Drives: 08 Mustang GT, 19 WRX Join Date: Jul 2012
Location: Eastern Time Zone
Posts: 6,990
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A V6 car doesn't need 6-piston Brembos unless it's being extensively modified for very serious HPDE, road course time trialing, or outright wheel to wheel racing. With at least another hundred HP at the wheels than stock.
If it is possible to make the heritage wheels work with a relatively thin spacer, plan on replacing the lugs on both front wheels with something longer and stronger. ARP is probably the go-to solution here. Separately bolted spacers/adapters have their own considerations, and are almost certainly a lot thicker than what you need. Don't skimp on lug nut thread engagement (at least one stud diameter's worth of threads fully engaged) or you'll risk unpleasantness up to and including loss of a wheel. Norm
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'08 GT coupe 5M (the occasional track toy)
'19 WRX 6M (the family sedan . . . seriously) |
09-27-2016, 12:53 PM | #4 |
Drives: 2010 2SS/RS Join Date: Dec 2009
Location: Clarksville Tennesse.
Posts: 6,089
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Need and want are two serious foes LOL!!!
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Orange Krush II
1LE Front sway bar, Splitter, shocks and struts, Z28 dual mode mufflers, Intake, UCA Bushings, and Toresen 3.91 Diff. 1 piece DSS Drive Shaft, ZL1/C7 Calipers, and 32mm JPSS Rear Bar. ASC race spec splitter and wicker. 6th Gen M017 Wheels. Stainless Works 1 7/8 LTs. DSE and PAFDT Suspension components. |
09-27-2016, 06:35 PM | #5 |
corner barstool sitter
Drives: 08 Mustang GT, 19 WRX Join Date: Jul 2012
Location: Eastern Time Zone
Posts: 6,990
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True. But it's so easy to get carried away / get all starry-eyed.
FWIW, I told myself I'd move up to the 14" 4-piston Brembos only when I felt I was getting closer to the limits of XP12 pads on my car's original (read: little 12.4 inch)setup. Experience strongly suggests that the above Brembo kit that's sitting in boxes in the family room will be all I need, given that I only have 315 HP or so at the crank. So I think for most folks it'd be enough for a tracked sixxer 5th gen as well. Norm
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'08 GT coupe 5M (the occasional track toy)
'19 WRX 6M (the family sedan . . . seriously) |
10-05-2016, 08:01 PM | #6 |
Drives: 2011 LS M6 SW Join Date: Jun 2011
Location: Queens, NY
Posts: 88
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My understanding is larger brakes lower temperature and allow for less aggressive pads to be used on track. If 6-piston Brembos allow V6 cars to use stock pads on track, that will save the hassle of switching between street and track pads, constant bleeding with high temp fluid, leaks from melted seals, and caliper discoloration. Stock pads have less bite but if the car is on street tires, is it still a concern? I guess my question is will the 6-piston Brembos with stock pads be sufficient for track use with street tires or is the 4-piston enough to do the same? Norm, I like to know your thoughts on this subject.
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10-06-2016, 06:52 AM | #7 | |
corner barstool sitter
Drives: 08 Mustang GT, 19 WRX Join Date: Jul 2012
Location: Eastern Time Zone
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I'll defer (mostly) to the following, which I've got saved as a file. Red emphasis mine from a couple of years ago. Basically, once you get past an introductory speed-limited lead-follow arrangement I don't think that pads with under about 1200° rating belong on your car when it's on the track. Maybe especially for freshly minted 'solo' drivers, as the tendency to go easier on the brake pedal for longer periods of time is likely to still be present.
Bigger rotors make for bigger heat sinks, meaning that peak temperatures won't get quite as high. But I'm not at all convinced that temperatures can be kept within street pad temperatures (guessing 800° - 900° max here). Larger rotors also improve the 'leverage' that the pads have for making brake torque, which changes the front to rear balance. While you do have ABS available to keep things from getting out of hand, I think what you really want is a balance that minimizes ABS intervention (this is why I'm dropping back to XP10's with the new bigger front rotors). Chances are that once you've run pads with better bite, you won't want to step back to OE. I've attached Hawk's mu vs temperature plot (admittedly, their view of OEM seems a bit pessimistic relative to the sort of pads you'd expect to find on a car fitted with 6-piston calipers as OE). Quote:
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'08 GT coupe 5M (the occasional track toy)
'19 WRX 6M (the family sedan . . . seriously) |
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10-06-2016, 09:46 AM | #8 |
Casey Woodside
Drives: a very fun car Join Date: Jun 2010
Location: Tn
Posts: 1,906
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Powerstop makes some great pads and rotors
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10-07-2016, 01:06 AM | #9 |
Drives: 2011 LS M6 SW Join Date: Jun 2011
Location: Queens, NY
Posts: 88
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I originally thought a brake system designed for a 580hp car will be fine for a car with half the power. That's like short shifting a ZL1 at 3000 rpm. It didn't made sense to me at first but I gave it some thoughts and I think your opinion have some basis. It looks like a car needs about 8 times the energy to double the speed but kinetic energy gained is only 4 times for brakes to slow down. The rest are lost through drag. So basically, engine power and braking power requirements do not increase linearly. Thanks for your input.
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